Enphase IQ8, IQ8M, IQ8A, IQ8H, IQ8-60-2-US Installation Manual

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INSTALLATION AND OPERATION MANUAL

Enphase IQ8, IQ8+, IQ8M, IQ8A, and IQ8H

Microinverters

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Corporate Headquarters Contact Information

Enphase Energy Inc. 1420 N. McDowell Blvd. Petaluma, CA 94954 USA

enphase.com/en-us/support/contact

FCC Compliance

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance may void the user’s authority to

operate the equipment.

Other Information

Product information is subject to change without notice. All trademarks are recognized as the property of their respective owners.

User documentation is updated frequently; Check the Enphase website(enphase.com/support) for the latest information. To ensure optimal reliability and to meet warranty requirements, the Enphase Microinverter must be installed according to

the instructions in this manual. For warranty text refer to enphase.com/warranty.

For Enphase patent information refer to enphase.com/company/patents/.

© 2022 Enphase Energy Inc. All rights reserved. Enphase, the Enphase logo, IQ8, IQ8+, IQ8M, IQ8A, IQ8H, IQ Gateway, IQ Combiner, IQ Microinverter, Enphase Installer App, Enphase App and other trademarks or service names are the trademarks of Enphase Energy, Inc. Data subject to change.

Audience

This manual is intended for use by professional installation and maintenance personnel.

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Table of Contents

Important Safety Information .................................................................................................................................... 5

Read this First ........................................................................................................................................... 5

Product Labels ........................................................................................................................................... 5

Safety and Advisory Symbols..................................................................................................................... 5

IQ8 Microinverter Safety Instructions ......................................................................................................... 5

PV Rapid Shutdown Equipment (PVRSE) ................................................................................................. 7

The Enphase IQ8 System.......................................................................................................................................... 8

How the Enphase IQ8 Series Microinverters Work..................................................................................... 8

System Monitoring ..................................................................................................................................... 8

Optimal Reliability ...................................................................................................................................... 9

Ease of Design........................................................................................................................................... 9

Planning for Microinverter Installation....................................................................................................................... 10

Compatibility............................................................................................................................................... 11

Grounding Considerations.......................................................................................................................... 11

Branch Circuit Capacity.............................................................................................................................. 12

Utility Service Requirements ..................................................................................................................... 12

Wire Lengths and Voltage Rise................................................................................................................. 12

Lightning and Surge Suppression ............................................................................................................ 13

Parts and Tools Required......................................................................................................................................... 12

Enphase Equipment................................................................................................................................... 12

Other Items................................................................................................................................................. 12

Enphase Microinverter Installation............................................................................................................................ 13

Step 1: Position the Enphase IQ Cable..................................................................................................... 13

Step 2: Position the Junction Box ............................................................................................................. 13

Step 3: Mount the Microinverters .............................................................................................................. 14

Step 4: Create an Installation Map............................................................................................................ 14

Step 5: Manage the IQ Cabling................................................................................................................. 15

Step 6: Connect the Microinverters........................................................................................................... 15

Step 7: Terminate the Unused End of the Cable....................................................................................... 16

Step 8: Complete Installation of the Junction Box..................................................................................... 16

Step 9: Connect the PV Modules ............................................................................................................. 17

Step 10: Enphase Energy system configurations...................................................................................... 17

Set Up and Activate Monitoring................................................................................................................. 18

Troubleshooting........................................................................................................................................................ 21

Status LED Indications and Error Reporting ............................................................................................. 21

LED Operation ................................................................................................................................... 21

DC Resistance Low – Power Off Condition ....................................................................................... 22

Other Faults ........................................................................................................................................ 22

Troubleshoot an Inoperable Microinverter.................................................................................................. 23

Disconnect a Microinverter......................................................................................................................... 23

Install a Replacement Microinverter........................................................................................................... 24

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Replacement parts and Cabling................................................................................................................................ 25

Ordering Replacement Parts...................................................................................................................... 25

Enphase IQ Cable Planning and Ordering................................................................................................. 25

Connector Spacing Options ...................................................................................................................... 26

Cabling Options......................................................................................................................................... 26

Enphase Q Cable Accessories.................................................................................................................. 27

Technical Data.......................................................................................................................................................... 27

Technical Considerations............................................................................................................................. 27

Module requirements.......................................................................................................................... 27

Bifacial Modules……………………………. ........................................................................................ 27

Specifications ......................................................................................................................................................... 27

IQ8-60-2-US Microinverter Specifications................................................................................................... 28

IQ8PLUS-72-2-US Microinverter Specifications ........................................................................................ 30

IQ8M-72-2-US Microinverter Specifications .............................................................................................. 32

IQ8A-72-2-US Microinverter Specifications ............................................................................................... 34

IQ8H-240-72-2-US Microinverter Specifications ....................................................................................... 36

IQ8H-208-72-2-US Microinverter Specifications ....................................................................................... 38

IQ Cable Specifications.............................................................................................................................. 40

Enphase Connector Ratings ..................................................................................................................... 40

Enphase Installation Map....................................................................................................................................... 41

Sample Wiring Diagram: ........................................................................................................................................ 42

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Important Safety Information

Read this First

This manual contains important instructions for use during installation and maintenance of the IQ 8™ Series Microinverters

IMPORTANT: Enphase IQ Series Microinverters require the IQ Cable. An IQ Gateway is required to monitor performance of the IQ Microinverters. The Q Accessories work only with Enphase IQ Series Microinverters.

Product Labels

The following symbols appear on the product label and are described here:

Safety and Advisory Symbols

To reduce the risk of electric shock, and to ensure the safe installation and operation of the Enphase IQ System, the following safety symbols appear throughout this document to indicate dangerous conditions and important safety instructions.

DANGER:

This indicates a hazardous situation, which if not avoided, will result in death or serious injury.

WARNING

This indicates a situation where failure to follow instructions may be a safety hazard or cause equipment malfunction. Use extreme caution and follow instructions carefully.

WARNING:

This indicates a situation where failure to follow instructions may result in burn injury.

NOTE:

This indicates information that is very important for optimal system operation. Follow instructions closely

IQ 8 Microinverter Safety Instruction

General Safety

DANGER: Risk of electric shock. Risk of fire

Only use electrical system components approved for wet locations

Only qualified personnel should install, troubleshoot, or replace Enphase Microinverters or Enphase IQ Cable and Accessories.

Ensure that all AC and DC wiring is correct and that none of the AC or DC wires are pinched, shorted or damaged. Ensure that all AC junction boxes are properly closed.

Do not exceed the maximum number of microinverters in an AC branch circuit as listed in the manual. You must protect each microinverter AC branch circuit with a 20 A maximum breaker or fuse as appropriate

DANGER: Risk of electric shock.

Do not use Enphase equipment in a manner not specified by the manufacturer. Doing so may cause death or injury to persons, or damage to equipment.

Be aware that installation of this equipment includes risk of electric shock.

The DC conductors of this photovoltaic system are ungrounded and may be energized.

Always de-energize the AC branch circuit before servicing. Never disconnect the DC or AC connectors under load

WARNING: Hot surface

DANGER: Refer to safety instructions

DANGER: Risk of electrical shock

Refer to manual

Double-Insulated

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

WARNINGS:

Before installing or using the Enphase Microinverter, read all instructions and cautionary markings in the technical description, on the Enphase equipment and on the photovoltaic (PV) equipment.

Do not connect Enphase Microinverters to the grid or energize the AC circuit(s) until you have completed all of the installation procedures and have received approval from the electrical utility.

When the PV array is exposed to light, DC voltage is supplied to the power conversion equipment (PCE).

Risk of equipment damage. Enphase male and female connectors must only be mated with the identical type and brand of male/female connector.

NOTES:

To ensure optimal reliability and to meet warranty requirements, install the Enphase equipment according to the instructions in this manual.

DANGER: Risk of electric shock. Always de-energize the AC branch circuit before servicing. Never disconnect the DC or AC connectors under load

Protection against lightning and resulting voltage surge must be in accordance with local standards.

Perform all electrical installations in accordance with all applicable local electrical codes, such as: the Canadian Electrical Code, Part 1; ANSI requirements; and NPFA 70 (NEC).

Microinverter Safety

WARNING: Risk

of skin burn

The chassis of the Enphase Microinverter is the heat sink. Under normal operating conditions, the temperature could be 20° C above ambient, but under extreme conditions the microinverter can reach a temperature of 90° C. To reduce risk of burns, use caution when working with microinverters.

DANGER: Risk of fire.

The DC conductors of the PV module must be labeled “PV Wire” or “PV Cable” when

paired with the Enphase Microinverter.

DANGER: Risk of electric shock. Risk of fire

Only qualified personnel may connect the Enphase Microinverter to the utility grid.

Do not attempt to repair the Enphase Microinverter; it contains no user-serviceable parts. If it fails, contact Enphase customer service to obtain a return merchandise authorization (RMA) number and start the replacement process. Tampering with or opening the Enphase Microinverter will void the warranty.

WARNING: Risk of equipment damage

Install the microinverter under the PV module to avoid direct exposure to rain, UV, and other harmful weather events. Always install the microinverter bracket side up. Do not mount the microinverter upside down. Do not expose the AC or DC connectors (on the Enphase IQ Cable, PV module, or the microinverter) to rain or condensation before the connectors are mated.

The maximum open circuit voltage of the PV module must not exceed the specified maximum input DC voltage of the Enphase Microinverter. Refer to the Enphase Compatibility Calculator at: https://enphase.com/en-us/support/module-compatibility to verify PV module electrical compatibility with microinverter. Use IQ8 Series microinverters only with compatible PV modules as per Enphase compatibility calculator. Using electrically incompatible PV module voids Enphase warranty

WARNING: Risk of equipment damage

You must match the DC operating voltage range of the PV module with the allowable input voltage range of the Enphase Microinverter.

The Enphase Microinverter is not protected from damage due to moisture trapped in cabling systems. Never mate microinverters to cables that have been left disconnected and exposed to wet conditions. This voids the Enphase warranty.

WARNING: Risk of equipment damage

The Enphase Microinverter functions only with a standard, compatible PV module with appropriate fill-factor, voltage, and current ratings. Unsupported devices include smart PV modules, fuel cells, wind or water turbines, DC generators, and non-Enphase batteries, etc. These devices do not behave like standard PV modules, so operation and compliance are not guaranteed. These devices may also damage the Enphase Microinverter by exceeding its electrical rating, making the system potentially unsafe.

NOTES:

The Enphase Microinverter has adjustable voltage and frequency trip points that may need to be set, depending upon local requirements. Contact Enphase customer service for required modifications as per local requirements

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase IQ Cable Safety

DANGER: Risk of

electric shock.

Do not install the Enphase IQ Cable terminator while power is connected.

WARNING: Risk of electric shock. Risk of fire

When stripping the sheath from the IQ Cable, make sure the conductors are not damaged. If the exposed wires are damaged, the system may not function properly.

Do not leave AC connectors on the IQ Cable uncovered for an extended period. You must cover any unused connector with a sealing cap.

Make sure protective sealing caps have been installed on all unused AC connectors. Unused AC connectors are live when the system is energized

WARNING:

Use the terminator only once. If you open the terminator following installation, the latching mechanism is destroyed. If the latching mechanism is defective, do not use the terminator. Do not circumvent or manipulate the latching mechanism

When installing the Enphase IQ Cable, secure any loose cable to minimize tripping hazard.

NOTES:

When looping the Enphase IQ Cable, do not form loops smaller than 4.75” (12 cm) in diameter.

Provide support for the Enphase IQ-Cable every 1.8m (6 feet).

If you need to remove a sealing cap, you must use the Enphase disconnect tool.

When installing the Enphase IQ Cable and accessories, adhere to the following:

• Do not expose the terminator cap or cable connections to directed, pressurized liquid (water jets, etc.)

• Do not expose the terminator or cable to continuous immersion.

• Do not expose the terminator cap or cable connections to continuous tension

(e.g., tension due to pulling or bending the cable near the connection).

• Use only the connectors provided.

• Do not allow contamination or debris in the connectors.

• Use the terminator cap and cable connections only when all parts are present

and intact.

• Do not install or use in potentially explosive environments.

• Do not allow the terminator to come into contact with open flame.

• Fit the terminator cap using only the prescribed tools and in the prescribed

manner.

• Use the terminator to seal the conductor end of the Enphase IQ Cable; no other method is allowed.

PV Rapid Shutdown Equipment (PVRSE)

This product is UL Listed as PV Rapid Shut Down Equipment and conforms with NEC-2014, NEC-2017 and NEC-2020 section 690.12 and C22.1-2018 Rule 64-218 Rapid Shutdown of PV Systems, for AC and DC conductors, when installed according to the following requirements:

• Microinverters and all DC connections must be installed inside the array boundary. Enphase further requires that the microinverters and DC connections be installed under the PV module to avoid direct exposure to rain, UV, and other harmful weather events.

• The array boundary is defined as 305 mm (1 ft.) from the array in all directions, or 1 m (3 ft.) form the point of entry inside a building.

This rapid shutdown system must be provided with an initiating device and (or with) status indicator which must be installed in a location accessible to first responders, or it must be connected to an automatic system which initiates rapid shutdown upon the activation of a system disconnect or activation of another type of emergency system.

The initiator shall be listed and identified as a disconnecting means that plainly indicates whether it is in the “off” or “on” position.

Examples are:

• Service disconnecting means

• PV system disconnecting means

• Readily accessible switch or circuit breaker

The handle position of a switch or circuit breaker is suitable for use as an indicator. Refer to NEC or CSA C22.1-2018 for more information.

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Additionally, in a prominent location near the initiator device, a placard or label must be provided with a permanent marking including the following wording:

’PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN’ The term ‘PHOTOVOLTAIC’ may be replaced with

‘PV.’

The placard, label, or directory shall be reflective, with all letters capitalized and having a minimum height of 9.5 mm

(3/8“) in white on red background.

The Enphase IQ System

The Enphase IQ System includes:

• Enphase IQ8™, IQ8+™, IQ8M™, IQ8A™ and IQ8H™ Micros The smart grid ready IQ Series Micros convert the DC output of the PV module into grid-compliant AC power. IQ8 Micros can fit into The

Enphase Energy System which can be configured in four different ways, ranging from Solar Only to Full

Energy Independence.

NOTE: All the IQ8™ Micros operate at 240 VAC except IQ8H™ Micros which has two SKUs. IQ8H240 supports split phase, 240V and can fit into Enphase Energy System. The IQ8H-208 supports split phase, 208V grid-tied operation only.

• Enphase IQ Gateway™ (ENV-IQ-AM1-240) The Enphase IQ Gateway is a communication device that provides network access to the PV array. The IQ Gateway collects production and performance data from

the Enphase IQ Microinverters over on-site AC power lines and transmits the data to Enphase through an Internet or cellular modem connection. The IQ Gateway is capable of monitoring up to 600 Enphase IQ Microinverters and up to 39 Enphase IQ Batteries. For details, refer to Enphase IQ Gateway Installation and

Operations Manual.

• Enphase Installer platform™ web-based monitoring and management software. Installers can use Enphase Installer Platform to view detailed performance data, manage multiple PV systems, and

remotely resolve issues that might impact system performance. Find out more at

enphase.com/enlighten.

• Enphase Installer App™ mobile app for iOS and Android devices. It allows installers to configure the system while onsite, eliminating the need for a laptop and improving installation efficiency. You can

use the app to:

o Connect to the IQ Gateway over a wireless network for faster system setup and

verification

View and email a summary report that confirms a successful installation

Scan device serial numbers and sync system information with Enphase installer platform

• Enphase IQ Battery™

• Enphase Field Wireable connectors (Q-CONN-10F and Q-CONN-10M) Make connections from any

IQ Cable, or open Field Wireable connector.

This manual describes the safe installation and operation of the Enphase Microinverter.

Note: To ensure optimal reliability and to meet warranty requirements, the Enphase Microinverter must be installed according to the instructions in this manual.

Note: IQ8 Microinverters cannot be installed on the same Gateway/Envoy with other Enphase microinverters.

If a site has other IQ series (IQ6, IQ7) microinverters or M/S series microinverters, a split system needs to be created with IQ8 microinverters provisioned on an IQ Gateway / IQ Envoy and the other microinverters provisioned on a separate IQ Gateway ( for IQ6, IQ7) or Envoy S metered (for M/S series).

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

How the Enphase IQ Series Micros Work

The Enphase Microinverter maximizes energy production by using a sophisticated Maximum Power Point Tracking (MPPT) algorithm. Each Enphase Microinverter individually connects to one PV module in your array. This configuration enables an individual MPPT to control each PV module, ensuring that maximum power available from each PV module is exported to the utility grid regardless of the performance of the other PV modules in the array. While an individual PV module in the array may be affected by shading, soiling, orientation, or PV module mismatch, each Enphase Microinverter ensures top performance for its associated PV module.

System Monitoring

Once you install the Enphase IQ Gateway and provide an internet connection through a broadband router or modem, the Enphase IQ Microinverters automatically begin reporting to Enphase Installer Platform. Enphase Installer Platform presents current and historical system performance trends and informs you of PV system status.

Optimal Reliability

Microinverter systems are inherently more reliable than traditional inverters. The distributed nature of a microinverter system ensures that there is no single point of system failure in the PV system. Enphase Microinverters are designed to operate at full power at ambient temperatures as high as 60°C (140°F).

Ease of Design

PV systems using Enphase Microinverters are very simple to design and install. You will not need string calculations or cumbersome traditional inverters. You can install individual PV modules in any combination of PV module quantity, type, age, and orientation. Each microinverter quickly mounts on the PV racking, directly beneath each PV module. Low voltage DC wires connect from the PV module directly to the co-located microinverter, eliminating the risk of personnel exposure to dangerously high DC voltage.

Enphase IQ

Gatew ay

Enphase

App

Enphase IQ

Batte ry

Enphase IQ

Cable

Enphase IQ Micr oinver ter

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Planning for Microinverter Installation

The Enphase IQ8 Micro is compatible with 60-cell PV modules, and the IQ8+, IQ8M, IQ8A and IQ8H Micro support PV modules with 60-cell or 66 cell or 72 cell in both full and split cell configuration. All of them installs quickly and easily. The microinverter housing is designed for outdoor installation and complies with the NEMA 250, type 6 environmental enclosure rating standard:

NEMA 6 rating definition: Indoor or outdoor use primarily to provide a degree of protection against hose-directed water, the entry of water during occasional temporary submersion at a limited depth, and damage from external ice formation

The Enphase IQ Cable is available with connector spacing options to accommodate installation of PV modules in portrait or landscape orientation. For Enphase IQ Cable ordering information, see “Enphase IQ Cable Planning and Ordering” on page 30.

Compatibility

The Enphase IQ Series Micros are electrically compatible with PV modules as listed in the following table. For specifications, see “Technical Data” on page 32 of this manual. You can refer to the Enphase Compatibility Calculator at: enphase.com/en-us/support/module-compatibility to verify PV module electrical compatibility. To ensure mechanical compatibility, be sure to order the correct connector type for both microinverter and PV module from your distributor.

WARNING: Risk of fire. The PV module DC conductors must be labeled "PV Wire" or "PV Cable” to

comply with NEC for Ungrounded PV Power Systems.

Microinverter Model

Connector Type

PV Module Cell Count

IQ8-60-2-US

MC-4 locking type

Pair with 60 cell /120-half-cell modules

IQ8PLUS-72-2-US

MC-4 locking type

Pair with 60 cell / 120-half-cell, 66

cell, or 72 cell / 144-half-cell

IQ8M-72-2-US

MC-4 locking type

Pair with 60 cell / 120-half-cell, 66

cell, or 72 cell / 144-half-cell

IQ8A-72-2-US

MC-4 locking type

Pair with 60 cell / 120-half-cell, 66

cell, or 72 cell / 144-half-cell

IQ8H-240-72-2-US

MC-4 locking type

Pair with 60 cell / 120-half-cell, 66

cell, or 72 cell / 144-half-cell

IQ8H-208-72-2-US

MC-4 locking type

Pair with 60 cell / 120-half-cell, 66

cell, or 72 cell / 144-half-cell

Grounding Considerations

The Enphase Microinverter models listed in this guide do not require grounding electrode conductors (GEC), equipment grounding conductors (EGC), or grounded conductor (neutral). Your Authority Having Jurisdiction (AHJ) may require you to bond the mounting bracket to the racking. If so, use UL2703 hardware or star washers. The microinverter itself has a Class II double-insulated rating, which includes ground fault protection (GFP). To support GFP, use only PV modules equipped with DC cables labeled PV Wire or PV Cable.

Branch Circuit Capacity

Plan your AC branch circuits to meet the following limits for maximum number of microinverters per branch when protected with a 20 amp (maximum) over current protection device (OCPD).

Maximum* IQ8 Micros per AC

branch circuit (240 VAC)

Maximum* IQ8+ Micros per AC

branch circuit (240 VAC)

Maximum* IQ8M Micros per AC

branch circuit (240 VAC)

Maximum* IQ8A Micros per AC

branch circuit (240 VAC)

Maximum* IQ8H-240 Micros per

AC branch circuit (240 VAC)

Maximum* IQ8H-208 Micros per

AC branch circuit (208 VAC)

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

NOTE: *Limits may vary. Refer to local requirements to define the number of microinverters per

branch in your area.

Utility Service Requirements

The Enphase IQ Series Micros work with single-phase service. Measure AC line voltages at the electrical utility connection to confirm that it is within the ranges shown:

NOTE: All 208 VAC installations using IQ8H-208 Micros require that you use the Enphase IQ Gateway to commission the Enphase Microinverters to propagate correct grid profile settings for 208 VAC trip points.

Wire Lengths and Voltage Rise

When planning the system, you must select the appropriate AC conductor size to minimize voltage rise. Select the correct wire size based on the distance from the beginning of the microinverter AC branch circuit to the breaker in the load center. Enphase recommends a voltage rise total of less than 2% for the sections from the microinverter AC branch circuit to the breaker in the load center.

Enphase provides guidance about choosing wire size and maximum conductor lengths in the Voltage Rise Technical Brief at enphase.com/support. Refer to this brief for voltage rise values in Enphase IQ Cables and on how to calculate voltage rise in other wire sections of the system.

Standard guidelines for voltage rise on feeder and AC branch circuit conductors might not be sufficient for microinverter AC branch circuits that contain the maximum allowable microinverters. This is due to high inherent voltage rise on the AC branch circuit.

Best practice: Center-feed the branch circuit to minimize voltage rise in a fully populated branch. This practice greatly reduces the voltage rise as compared with an end-fed branch. To center-feed a branch, divide the circuit into two sub-branch circuits protected by a single OCPD.

Lightning and Surge Suppression

Enphase Microinverters have integral surge protection, greater than most traditional inverters. However, if the surge has sufficient energy, the protection built into the microinverter can be exceeded, and the equipment can be damaged. For this reason, Enphase recommends that you protect your system with a lightning and/or surge suppression device. In addition to having some level of surge suppression, it is also important to have insurance that protects against lightning and electrical surges. Enphase has tested the following devices:

• Leviton 51110-SRG

• Schneider SquareD HEPD50

NOTE: Protection against lightning and resulting voltage surge must be in accordance with local standards.

240 Volt AC, Single Phase

L1 to L2

211 to 264 VAC

L1, L2 to ground

106 to 132 VAC

208 Volt AC, Single Phase

L1 to L2

183 to 229 VAC

L1, L2 to ground

106 to 132 VAC

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Parts and Tools Required

In addition to the microinverters, PV modules, and racking, you will need the following:

Enphase Equipment

• Enphase IQ Gateway: Required to monitor production. IQ Gateway (model ENV-IQ-AM1-240) communications gateway or IQ Combiner (model X-IQ-AM1-240-B, X-IQ-AM1-240-2, X-IQAM1-240-3, X-IQ-AM1-240-3C).

• Enphase Installer App: Download the Enphase Installer app, open it, and log in to your Enphase Installer Platform account. Use it later to scan microinverter serial numbers and connect to the IQ Gateway to track system installation progress. To download, go to

enphase.com/installerapp or scan the QR code at right.

• Tie wraps or IQ Cable Clips (Q-CLIP-100)

• Enphase Sealing Caps (Q-SEAL-10) for any unused drops on the Enphase IQ Cable

• Enphase Terminator (Q-TERM-10) typically two needed per branch circuit

• Enphase Disconnect Tool (Q-DISC-10)

• Enphase Field Wireable Connectors (male and female: Q-CONN-10M and Q-CONN-10F)

•

Enphase IQ Cable:

Cable Model

Connector Spacing

PV Module

Orientation

Connector Count

per box

Q-12-10-240

1.3m

Portrait

240

Q-12-17-240

2.0m

Landscape(60-cell)

240

Q-12-20-200

2.3m

Landscape(72-cell)

200

Other Items

• AC junction box

• Number 2 and 3 screwdrivers

• Wire cutters, voltmeter

• Torque wrench, sockets, wrenches for mounting hardware

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase Microinverter Installation

Installing the Enphase IQ Series Micros involves several key steps. Each step listed here is detailed

in the following pages.

Step 1: Position the Enphase IQ Cable Step 2: Position the Junction Box Step 3: Mount the Microinverters Step 4: Create an Installation Map Step 5: Manage the Cabling Step 6: Connect the Microinverters Step 7: Terminate the Unused End of the Cable Step 8: Complete Installation of the Junction Box Step 9: Connect the PV Modules

Step 10: Enphase Energy System Configurations

Horizontal Mount

Vertical Mount

Step 1: Position the Enphase IQ Cable

A. Plan each cable segment to allow drop connectors on the Enphase IQ Cable to align with each PV module.

Allow extra length for slack, cable turns, and any obstructions. B. Mark the approximate centers of each PV module on the PV racking. C. Lay out the cabling along the installed racking for the AC branch circuit. D. Cut each segment of cable to meet your planned needs.

WARNING: When transitioning between rows, secure the cable to the rail to prevent cable damage or connector damage. Do not count on connector to withstand tension.

Enphase IQ

Cable

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Step 2: Position the Junction Box

A. Verify that AC voltage at the site is within range.

NOTE: All 208 VAC installations require that you use the Enphase IQ Gateway to commission the Enphase

Microinverters to propagate correct grid profile settings for 208 VAC trip points.

B. Install a junction box at a suitable location on the racking. C. Provide an AC connection from the junction box back to the electricity network using equipment and practices

as required by local jurisdictions.

Step 3: Mount the Microinverters

A. Mount the microinverter horizontally bracket side up or vertically

• Always place the microinverter under the PV module, protected from direct exposure to rain, sun, and

other harmful weather events. Allow a minimum of 1.9cm (3/4”) between the roof and the microinverter.

Also allow 1.3 cm (1/2”) between the back of the PV module and the top of the microinverter.

• For vertical mount, also maintain > 30 cm (12”) clearance from the edges of the PV module to protect the

microinverter from direct exposure to rain, UV, and other harmful weather events.

WARNING: Install the microinverter under the PV module to avoid direct exposure to rain, UV, and other harmful weather events. Do not mount the microinverter upside down.

B. Torque the microinverter fasteners as follows. Do not over torque.

• 6 mm (¼”) mounting hardware: 5 N m (45 to 50 in-lbs.)

• 8 mm (5/16”) mounting hardware: 9 N m (80 to 85 in-lbs.)

• When using UL 2703 mounting hardware, use the manufacturer’s recommended torque value

Step 4: Create an Installation Map

The Enphase Installation Map is a diagram of the physical location of each microinverter in your PV installation. Copy or use the blank map on page 46 to record microinverter placement for the system or provide your own layout if you require a larger or more intricate installation map.

Service Type and Voltage: L1-L2

240 VAC Split-Phase

211 to 264 VAC

208 VAC Single-Phase

183 to 229 VAC

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Each Enphase Microinverter, IQ Gateway, and IQ Battery have a removable serial number label. Build the installation map by peeling the serial number labels from the microinverter mounting plates and placing the labels on the map. You will also place the Enphase IQ Gateway and IQ Battery serial number on the map after installation.

After you have created the installation map, use the Enphase Installer App mobile app to record serial numbers and configure the system.

For details, refer to “Detect the Microinverters” in the help topics of the Enphase Installer app.

A. Peel the removable serial number label from each microinverter and affix it to the respective location on the

paper installation map. B. Peel the label from the IQ Gateway and any Enphase IQ Battery, if installed) and affix it to the installation map. C. Always keep a copy of the installation map for your records.

Step 5: Manage the Cabling

A. Use cable clips or tie wraps to attach the cable to the racking. Leave no more than 1.8 m (six feet) between

cable clips or tie wraps.

B. Dress any excess cabling in loops so that it does not contact the roof. Do not form loops smaller than 12 cm

(4¾ “) in diameter.

WARNING: Tripping Hazard. Loose cables can become a tripping hazard. Dress the Enphase IQ Cable to

minimize this potential.

Step 6: Connect the Microinverters

A. Connect the microinverter. Listen for a click as the connectors engage. B. Cover any unused connector with Enphase Sealing Caps. Listen for a click as the connectors engage

Affix serial number labels

Cable clip

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

WARNING: Risk of electric shock. Risk of fire. Install sealing caps on all unused AC connectors as these connectors become live when the system is energized. Sealing caps are required for protection against moisture ingress.

NOTE: If you need to remove a sealing cap, you must use the Enphase Disconnect Tool. See Disconnect a Microinverter” on page 27.

Step 7: Terminate the Unused End of the Cable

Terminate the unused end of the Enphase IQ Cable as follows.

A. Remove 13 mm (½ inch) of the cable sheath from the conductors. Use the

terminator loop to measure 13 mm. B. Slide the hex nut onto the cable. There is a grommet inside of the hex nut

that should remain in place. C. Insert the cable into the terminator body so that each of the two wires land

on opposite sides of the internal separator.

D. Insert a screwdriver into the slot on the top of the terminator to hold it in place and torque the nut to 7 Nm. E. Hold the terminator body stationary with the screwdriver and turn only the hex nut to prevent the conductors

from twisting out of the separator.

NOTE: Turn only the hex nut to prevent conductors from twisting out of the separator.

Terminator Body

13 mm

Internal View

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

F. Attach the terminated cable end to the PV racking with a cable clip

or tie wrap so that the cable and terminator. Do not touch the roof.

WARNING: The terminator cannot be re-used. If you unscrew the nut, you must discard the terminator.

Step 8: Complete Installation of the Junction Box

A. Connect the Enphase IQ Cable into the junction box. B. Refer to the wiring diagrams on page 47 for more information. Wire colors are listed in the following table.

Step 9: Connect the PV Modules

WARNING: Electrical shock hazard. The DC conductors of this photovoltaic system are ungrounded and

may be energized.

A. If required, attach the Enphase DC bulkhead adaptors to the

microinverters. Make sure they are fully seated. Do not reverse the

adaptor connections. B. Connect the DC leads of each PV module to the DC input

connectors of the corresponding microinverter. C. Check the LED on the connector side of the microinverter. The LED

flashes six times when DC power is applied. D. Mount the PV modules above the microinverters.

Step 10: Energizing Enphase Energy System & Configurations

IQ8 Micro based PV systems can operate in grid-tied mode (solar only) out of the box. Additional modes of operation could be enabled when connected with other Enphase Energy System products.

Following are common system configurations possible with The Enphase Energy System using IQ8 PV (IQ8/ IQ8Plus /IQ8M /IQ8A /IQ8H-240) microinverters. IQ8H-208 supports split phase, 208V in grid-tied mode configuration only.

− Solar Only

− Sunlight Backup

− Home Essentials Backup

− Full Energy Independence

Based on System configuration Enphase Energy system technology systems include following Enphase products -

• Enphase IQ Battery system is an all-in-one AC coupled storage system that includes embedded, grid-forming multimode microinverters. You can connect multiple IQ Battery systems to maximize potential backup for homes. The IQ Battery 3 storage system provides flexibility to customers to start small and add capacity incrementally.

• Enphase IQ System Controller R2 The Enphase Energy System includes the IQ System Controller™ smart switch with Microgrid Interconnection Device (MID) capability, which consolidates interconnection equipment into a single enclosure and streamlines grid-independent capabilities of PV and storage installations by providing a consistent, pre-wired solution for residential applications. Along with MID functions, it includes PV, storage, and generator input circuits. It allows IQ Battery storage systems to form an intentional island (per IEEE 1547.4 definition) and contains a neutral-forming transformer (NFT) to enable 120/240 V operation in backup mode.

Wire Colors

L1-Black

L2-Red

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

• Enphase Wireless communication kit enables direct communication between IQ Battery, IQ System Controller, and the Gateway using 2.4 GHz frequency. The kit is connected to one of the USB ports on the IQ Gateway.

• An Enphase Mobile Connect™ cellular modem is required unless already present to ensure the best performance of your system. The cellular modem connects to a USB port on the IQ Gateway.

• For new or retrofit systems with IQ-Series solar microinverters:

o IQ8 PVTM (IQ8/ IQ8Plus /IQ8M /IQ8A /IQ8H-240) series microinverters and accessories. Enphase

Energy System technology is fully compatible with IQ8 series microinverters

o IQ Gateway™, a communications gateway that can communicate with IQ8 series Microinverters, IQ

batteries, and the IQ System Controller smart switch. It collects system performance information and transmits that information over the internet to Enphase’s cloud. An IQ Gateway is required for Enphase Energy systems with IQ-Series microinverters. Note the IQ Gateway is included in an Enphase IQ Combiner.

o IQ™ Combiner series consolidates interconnection equipment into a single enclosure and

streamlines PV and storage installations by providing a consistent, pre-wired solution for residential applications. It includes the Enphase IQ Gateway. Install the new communication kit in any IQ Combiner to enable wireless communication with Enphase IQ Battery and IQ System Controller

Enphase Energy System PV Solar Grid Tied – Solar Only

For Grid Tied mode, post IQ 8PV microinverter installations energize the system –

A. Turn ON the AC disconnect or circuit breaker for the branch circuit. B. Turn ON the main utility-grid AC circuit breaker. Your system starts producing power after a five-minute

wait time.

C. Check the LED on the connector side of the microinverter:

LED Color

Indicates

Flashing green

Normal operation. AC grid function is normal there is communication with the IQ Gateway

Flashing orange

The AC grid is normal but there is no communication with the IQ Gateway

Flashing Red

The AC grid is either not present or not within specification

Solid Red

There is an active “DC Resistance Low, Power Off Condition.” To reset, see “DC Resistance Low – Power Off Condition” on page 24.

Refer to the Enphase IQ Gateway Quick Install Guide to install the IQ Gateway and set up system monitoring and grid management functions

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase Energy System PV Solar Grid Agnostic – Sunlight backup

In the PV Solar Grid Agnostic configuration in Enphase Energy System, IQ Smart controller smart switch is installed on the line-side of the main load panels. This allows a properly sized Enphase Energy system to provide power to all loads in the main load panel in the event of a grid outage and PV solar presence. In this configuration, the IQ System Controller can be configured with a main breaker to act as the service disconnecting means. The PV system shall be interconnected to the IQ System Controller on a dedicated breaker. This configuration typically supports larger PV system sizes and may allow avoiding expensive utility service and/or main service panel upgrades.

System commissioning for grid agnostic configuration should be done in presence of grid. During IQ 8PV installation, please ensure all relays are open from main panel and IQ System Controller. When commissioned, IQ System Controller gets powered on from grid side of the MID (Microgrid interconnect device) ; it closes the MID relay and PV relay. IQ 8PV shall start producing power in grid tied mode and IQ Gateway power on. The system can support PV branch circuits rated for up to 64A continuous current output. Follow the Enphase Energy system commissioning process using Installer tool kit for system commissioning.

Enphase Energy System PV Solar + Storage – Home Essentials Backup

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

In the home essentials backup (main load panel) configuration, IQ System Controller is installed on the line-side of the main load panels rated up to 200A. This allows a properly sized Enphase Energy System to provide power to all loads in the main load panel in the event of a grid outage. In this configuration, the IQ System Controller can be configured with a main breaker to act as the service disconnecting means. The PV system can be interconnected to the IQ System Controller on a dedicated breaker or may be interconnected to the main load panel. This configuration typically supports larger PV and storage system sizes and may allow avoiding expensive utility service and/or main service panel upgrades. With IQ8 Microinverters on the roof, there is no PV-to-battery ratio to consider when designing the system.

The above configuration can also work with a genset connected to IQ System Controller with or without IQ Battery. Below two images explain the connection configuration.

Full Energy Independence

In this configuration, the Enphase Energy System provides all-day backup using IQ8 series microinverters and IQ Batteries. The system must have at least 10 kWh of IQ Batteries installed. Depending on the IQ Battery sizing, the system will be able to sustain off grid operation for extended periods of time. This use case supports backing up all the loads in the home. Note that the batteries must be sized correctly to supply the loads. Two IQ Load Controllers can be installed to enable fine-

grained control of backed-up loads.

Set Up and Activate Monitoring

Refer to the Enphase IQ Gateway Quick Install Guide to install the IQ Gateway and set up system monitoring and grid management functions. This guide leads you through the following:

• Connecting the Gateway

• Detect devices

• Connecting to Enphase Installer Platform

• Registering the system

• Building the virtual array

NOTE: When the utility requires a profile other than the default IEEE 1547 (for example grids managed by Hawaii Electric Industries [HEI] including HECO) you must select an appropriate grid profile for your installation.

You can set the grid profile through Enphase Installer Platform, during system registration, or through Enphase Installer App at any time. You must have an Enphase IQ Gateway to set or change the grid profile. For more information on setting or changing the grid profile, refer to the Enphase IQ Gateway installation and Operation Manual at enphase.com/support.

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Troubleshooting

Follow all the safety measures described throughout this manual. Qualified personnel can use the following troubleshooting steps if the PV system does not operate correctly.

WARNING: Risk of electric shock. Do not attempt to repair the Enphase Microinverter; it contains no user-serviceable parts. If it fails, contact Enphase customer service to obtain an RMA (return merchandise authorization) number and start the replacement process.

Status LED Indications and Error Reporting

The following section describes LED indications.

LED Operation

LED Color

Indicates

Flashing green

Normal operation. AC grid function is normal there is communication with the IQ Gateway

Flashing orange

The AC grid is normal but there is no communication with the IQ Gateway

Flashing Red

The AC grid is either not present or not within specification

Solid Red

There is an active “DC Resistance Low, Power Off Condition.” To reset, see “DC Resistance Low – Power Off Condition” on page 24.

The status LED on each microinverter lights green about six seconds after DC power is applied. It remains lit solid for two minutes, followed by six green blinks. After that, red blinks indicate that no grid is present if the system is not yet energized.

Any short red blinks after DC power is first applied to the microinverter indicate a failure during microinverter startup.

DC Resistance Low – Power Off Condition

For all IQ Series models, a solid red status LED when DC power has been cycled indicates the microinverter has detected a DC Resistance Low – Power Off event. The LED will remain red and the fault will continue to be reported by the Gateway until the error has been cleared.

An insulation resistance (IR) sensor in the microinverter measures the resistance between the positive and negative PV inputs to ground. If either resistance drops below a threshold, the microinverter stops power production and raises this condition. This may indicate defective module insulation, defective wiring or connectors, moisture ingress, or a similar problem. Although the cause may be temporary, this microinverter condition persists until the sensor is manually reset.

An IQ Gateway is required to clear this condition. The condition clears on operator command unless its cause is still present.

If a microinverter registers a “DC Resistance Low - Power Off” condition, you can attempt to clear this condition. If the condition does not clear after you perform the following procedure, contact Enphase Energy customer support at enphase.com/en-us/support/contact.

There are two ways to send a clear message to the microinverter. Note that the condition will not clear after sensor reset if the cause of the failure is still present. If the condition persists, contact your installer.

Method 1: Clear this Error Using Enphase Installer Platform

• Log in to Enphase Installer Platform and access the system.

• Click the Events tab. The next screen shows a current “DC Resistance Low - Power Off” condition for the system.

• Click DC Resistance Low - Power Off.

• Where “n” is the number of affected devices, click n devices (show details).

• Click the serial number of the affected microinverter.

• Click Reset DC Resistance Low - Power Off Sensor.

• The system displays, “A DC Resistance Low- Power Off reset task was issued on [date and time] for this microinverter and is still pending.”

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Method 2: Use Enphase Installer App to Clear the Condition

On the list of detected microinverters, a green dot or red square appears to the left of each microinverter serial number. A green dot indicates Status OK. A red square indicates an event for that microinverter.

• Tap the to the left of the serial number to view details for a microinverter event.

• If the microinverter status shows that there is an active DC Resistance Low – Power Off

condition, tap the to send the clear message to the affected microinverter. The app then indicates that a clear message was sent.

Other Faults

All other faults are reported to the Gateway. Refer to the Enphase IQ Gateway Installation and Operation Manual at enphase.com/support for troubleshooting procedures.

Troubleshoot an Inoperable Microinverter

To troubleshoot an inoperable microinverter, follow the steps in the order shown

WARNING: Risk of electric shock. Always de-energize the AC branch circuit before servicing. Never disconnect the DC connectors under load.

WARNING: The Enphase Microinverters are powered by DC power from the PV modules. Make sure you disconnect the DC connections and reconnect DC power and then watch for the solid green about six seconds after connection to DC power.

A. Make sure AC breakers and disconnects are closed. B. Check the connection to the utility grid and verify that the utility voltage is within allowable ranges. C. Verify that AC line voltages at all solar power circuit breakers at the load center and subpanels are within the

ranges shown in the following table.

D. Verify that AC line voltage at the junction box for each AC branch circuit is within the ranges shown in the

following table:

240 Volt AC, Single Phase

L1 to L2

211 to 264 VAC

L1, L2 to ground

106 to 132 VAC

208 Volt AC, Single Phase

L1 to L2

183 to 229 VAC

L1, L2 to ground

106 to 132 VAC

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

E. Using an Enphase disconnect tool, disconnect the AC cable for the microinverter in question from the Enphase

IQ Cable.

F. Verify that utility power is present at the microinverter by measuring line to line and line to ground at the

Enphase IQ Cable connector.

G. Visually check that the AC branch circuit connections (Enphase IQ Cable and AC connections) are properly

seated. Reseat if necessary. Check also for damage, such as rodent damage.

H. Make sure that any upstream AC disconnects, as well as the dedicated circuit breakers for each AC branch

circuit, are functioning properly and are closed.

I. Disconnect and re-connect the DC PV module connectors. The status LED of each microinverter will light solid

green a few seconds after connection to DC power and then blink green six times to indicate normal start-up operation about two minutes after connecting to DC power. The LED subsequently resumes normal operation if the grid is present. See page 24 for normal LED operation.

J. Attach an ammeter clamp to one conductor of the DC cables from the PV module to measure microinverter

current. This will be under one amp if AC is disconnected.

K. Verify the PV module DC voltage is within the allowable range shown in “Specifications” on page 33 of this

manual.

L. Swap DC leads with a known good, adjacent PV module. If after checking Enphase Installer Platform

periodically (this may take up to 30 minutes), the problem moves to the adjacent module, this indicates that the

PV module isn’t functioning correctly. If it stays in place, the problem is with the original microinverter. Contact

Enphase Customer Support for help in reading the microinverter data and for help in obtaining a replacement

microinverter, if needed.

M. Check the DC connections between the microinverter and the PV module. The connection may need to be

tightened or reseated. If the connection is worn or damaged, it may need replacement. N. Verify with your utility that line frequency is within range. O. If the problem persists, contact Customer Support at enphase.com/en-us/support/contact.

Disconnect a Microinverter

If problems remain after following the troubleshooting steps listed previously, contact Enphase at enphase.com/en-

us/support/contact. If Enphase authorizes a replacement, follow the steps below. To ensure the microinverter is not

disconnected from the PV modules under load, follow the disconnection steps in the order shown:

A. De-energize the AC branch circuit breaker. B. Enphase AC connectors are tool-removable only. To disconnect the microinverter from the Enphase IQ Cable

insert the disconnect tool and remove the connector. C. Cover the PV module with an opaque cover. D.

Using a clamp-on meter, verify there is no current flowing in the DC wires between the PV

module and the

microinverter. If current is still flowing, check that you have completed steps one and two above.

NOTE: Take care when measuring DC current as most clamp-on meters must be zeroed first and tend to drift with time.

E. Disconnect the PV module DC wire connectors from the microinverter using the Enphase disconnect tool. F. If present, loosen and/or remove any bonding hardware. G. Remove the microinverter from the PV racking.

WARNING: Risk of electric shock. Risk of fire. Do not leave any connectors on the PV system disconnected for an extended period. If you do not plan to replace the microinverter immediately, you must cover any unused connector with a sealing cap.

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Install a Replacement Microinverter

A. When the replacement microinverter is available, verify that the AC branch circuit breaker is de-energized. B. Mount the microinverter horizontally bracket side up or vertically

• Always place the microinverter under the PV module, protected from direct exposure to rain, sun, and

other harmful weather events. Allow a minimum of 1.9cm (3/4”) between the roof and the microinverter. Also allow 1.3 cm (1/2”) between the back of the PV module and the top of the

microinverter.

• For vertical mount, also maintain > 30 cm (12”) clearance from the edges of the PV module to protect the microinverter from direct exposure to rain, UV, and other harmful weather events

WARNING: Risk of equipment damage. Mount the microinverter under the PV module.

• Install the microinverter under the PV module to avoid direct exposure to rain, UV, and other harmful weather events.

• Always install the microinverter bracket side up.

• Do not mount the microinverter upside down.

• Do not expose the AC or DC connectors (on the Enphase IQ Cable connection, PV module, or the

microinverter) to rain or condensation before the connectors are mated.

C. Torque the mounting fasteners to the values shown. Do not over torque.

• 6 mm (1/4”) mounting hardware: 5 N m (45 to 50 in-lbs.)

• 8 mm (5/16”) mounting hardware: 9 N m (80 to 85 in-lbs.)

• When using UL 2703 mounting hardware, use the manufacturer’s recommended torque value

D. If you are using bonding hardware, the old bonding hardware should be discarded, and new bonding hardware

must be used when installing the replacement microinverter. E. Connect the microinverter to the IQ Cable connector. Listen for a click as connectors engage. F. Connect the DC leads of each PV module to the DC input connector of the microinverter. G. Re-mount the PV module above the microinverter. H. Energize the AC branch circuit breaker and verify operation of the replacement microinverter by checking the

Status LED on the connector side of the microinverter. I. Use the Enphase Installer App to delete the old microinverter serial number from the Enphase IQ Gateway

database. In Enphase Installer App, once connected to the IQ Gateway:

a. Tap Micros > Manage. b. Tap the checkbox to the right of the microinverter serial number that you replaced.

to delete the microinverter from the IQ Gateway database. c. Tap

J. Add the new microinverter serial number to the Gateway database by initiating a device scan using one of the

following methods:

a. Method 1: Initiate a scan using the Enphase Installer App

• In Enphase Installer App, once connected to the IQ Gateway, navigate to the Overview screen.

• From the Overview screen, tap Detected > Start Device Scan to start a new 30- minute device scan.

• If device scanning on the IQ Gateway is inhibited, the app displays Scan Inhibited. If you need to add more microinverters to the system when device scanning is inhibited on the IQ Gateway, you must use the Enphase Installer App scanning tool to provision them on the IQ Gateway, rather than using the IQ Gateway’s device scanning function to discover them. If this is not possible and you need to enable device scanning on the IQ Gateway, contact Enphase Customer Support at enphase.com/en-us/support/contact.

b. Method 2: Use an IQ Gateway

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

• Press the Device Scan button on the IQ Gateway. The IQ Gateway begins a 15-minute scan to identify all of the microinverters deployed at the site. The Microinverter Communications

LED flashes green during the scan.

K. Log in to Enphase Installer platform to use Enphase installer platform’s Array Builder to add the newly detected

microinverter to the virtual array.

L. Ship the old microinverter to Enphase using the supplied return-shipping label.

Replacement Parts and Cabling

Ordering Replacement Parts

Replacement adaptors for Microinverters with MC-4 DC connectors include:

• Q-DCC-2: Cable Assembly, DC adaptor to MC-4 These parts are available from your Enphase distributor.

Enphase IQ Cable Planning and Ordering

The Enphase IQ Cable is a continuous length of 12 AWG, double insulated, outdoor-rated cable with integrated connectors for microinverters. These connectors are preinstalled along the IQ Cable at intervals to accommodate varying PV module widths. The microinverters plug directly into the cable connectors.

The cabling is compatible with a variety of PV racking systems. For a list of approved PV racking systems, refer to the PV Racking Compatibility document on the Enphase website at enphase.com/support.

Connector Spacing Options

IQ Cable is available in three connector spacing options. The gap between connectors on the cable can be 1.3 meters,

2.0 meters, or 2.3 meters. The 1.3 meter spacing is best suited for connecting PV modules installed in portrait orientation, while the 2.0 meter and 2.3 meter spacing allows you to install 60-cell and 72-cell PV modules in landscape orientation, respectively

Cabling Options

Ordering options include:

Cable Model

Connector spacing

PV module orientation

Connector count per box

Q-12-10-240

1.3m (50”)

Portrait

240

Q-12-17-240

2.0m (78”)

Landscape (60-cell)

240

Q-12-20-200

2.3m(90”)

Landscape (72-cell)

200

Microinverter Communications LED

Device Scan button

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

The Cabling System is flexible enough to adapt to almost any solar design. To determine the cable type, you need, apply the following considerations:

• When mixing PV modules in both portrait and landscape orientation, you may need to transition between cable types. See the preceding table for available cable types.

• To transition between cable types, install a Field Wireable connector pair.

• In situations where portrait modules are widely spaced, you may need to use landscape spaced

cables for the portrait-oriented PV modules and create loops of excess cable, if needed.

WARNING: Do not form loops smaller than 12 cm (4.75”) in diameter

Enphase IQ Cable Accessories

The Enphase IQ Cable is available with several accessory options for ease of installation, including:

• Field wireable connectors (male): (Q-CONN-10M) Make connections from any Field Wireable female connector

• Field wireable connectors (female): (Q-CONN-10F) Make connections from any IQ Cable open connector or Field

Wireable male connector

• Cable clips: (Q-CLIP-100) Used to fasten cabling to the racking or to secure looped cabling

• Disconnect tool: (Q-DISC-10) Disconnect tool for IQ Cable connectors, DC connectors, and AC module mount

• IQ Cable sealing caps (female): (Q-SEAL-10) One needed to cover each unused connector on the cabling

• Terminator: (Q-TERM-10) Terminator cap for cut cable ends

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Technical Data

Technical Considerations

Be sure to apply the following when installing the Enphase IQ8 Series Micro System:

WARNING: Risk of equipment damage. You must match the DC operating voltage range of the PV module with the allowable input voltage range of the Enphase Microinverter.

WARNING: Risk of equipment damage. The maximum open circuit voltage of the PV module must not exceed the specified maximum input voltage of the Enphase Microinverter.

• PV modules must have conductors labeled "PV Wire" or "PV Cable” to comply with NEC for Ungrounded PV

Power Systems.

• Verify that the voltage and current specifications of the PV module match those of the

microinverter.

• The maximum short circuit current rating of the PV module must be equal to or less than the maximum

input DC short circuit current rating of the microinverter.

The output voltage and current of the PV module depends on the quantity, size and temperature of the PV cells, as well as the insolation on each cell. The highest PV module output voltage occurs when the temperature of the cells is the lowest and the PV module is at open circuit (not operating).

Bifacial Modules

Enphase microinverters are compatible with bifacial PV modules. Bifacial solar modules produce power from both sides of a bifacial module, increasing total energy generation. The power gained from rear side (bifacial gain) is highly influenced by various design factors such as albedo, module elevation, pitch, temperature and shading. The bifacial gain can be anywhere between 0% to 30% of nominal rating (front side power rating) of the module. Since the bifacial gain is highly influenced by various design considerations, pairing the bifacial module with right microinverter depends on the electrical characteristics of a given module.

The temperature adjusted electrical parameters (maximum power, voltage and current) of the bifacial modules, considering the front side electrical parameters (i.e.,0% back side gain), must be within the microinverter input parameters range.

See Step 3: Mount the Microinverters on page 15 for tips on vertical mounting of bifacial modules

Specifications

Refer specifications in the following table for IQ8

Specifications

See specifications in the following tables for:

• Enphase IQ8-60-2-US Microinverters

• Enphase IQ8PLUS-72-2-US Microinverters

• Enphase IQ8M-72-2-US Microinverters

• Enphase IQ8A-72-2-US Microinverters

• Enphase IQ8H-240-72-2-US Microinverters

• Enphase IQ8H-208-72-2-US Microinverters

• Enphase IQ Cable

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

IQ8-60-2-US Microinverter Specifications

Enphase IQ8-60-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

DC Parameters

Commonly used modules for pairing1

235W – 350W

Peak power tracking voltage

27 37

Operating Voltage Range

16 48

Maximum Input DC Voltage

Minimum/Maximum start voltage

22 48

Maximum continuous input DC current (module Imp)

Maximum DC input short circuit current (module Isc)

Overvoltage class DC port

DC Port backfeed under single fault

PV array configuration

1x1 ungrounded array; No additional DC side protection required; AC side protection requires max 20A per branch circuit

AC Parameters

Maximum continuous AC output power

240

Peak output power

245

Grid-tied power factor (adjustable)

0.85 leading

0.85 lagging

Nominal AC output voltage range 240 VAC (single phase) 2

Vrms

211

264

Max continuous output current

A 1.0

Nominal frequency

Hz 60

Extended frequency range

50 68

Maximum AC output over current protection device

AC short circuit fault current over 3 cycles

Arms for over

3 cycle

2 Arms

High AC voltage trip limit accuracy

±1.0

Low AC voltage trip limit accuracy

±1.0

Frequency trip limit accuracy

±0.1

Trip time accuracy (for trip times or delays < 5 sec.)

±ms

Trip time accuracy (for trip times or delays >= 5 sec.)

Overvoltage class AC port

III

AC port backfeed current

Power factor setting

1.0

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IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase IQ8-60-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

Miscellaneous Parameters

Maximum3 microinverters per 20A (max) AC branch circuit 240 VAC (single phase)

CEC weighted efficiency 240 VAC (single phase)

97%

Total harmonic distortion

Ambient temperature range

°C

-40

+60

Night-time power consumption

Storage temperature range

°C

-40

+85

Features and Specifications

Compatibility

60-cell/120 half-cell PV modules

Dimensions not including mounting bracket

212 mm (8.3”) x 175 mm (6.9”) x 30.2 mm (1.2”)

Connector Type

Enphase IQ™ Connector

Weight

1.08 kg (2.38 lbs)

Environmental Category/ UV exposure rating

NEMA Type 6 / outdoor

Torque specifications for fasteners (Do not over torque)

• 6 mm (1/4”) mounting hardware: 5 N m (45 to 50 in-lbs.)

• 8 mm (5/16”) mounting hardware: 9 N m (80 to 85 in-lbs.)

• When using UL 2703 mounting hardware, use the manufacturer’s recommended torque value

Cooling

Natural convection - No fans

Relative Humidity range

4% to 100% (condensing)

Approved for wet locations

Yes

Pollution degree

PD3

Standard Warranty Term

http://enphase.com/warranty

Enphase IQ8-60-2-US Microinverter Parameters

Compliance

CA Rule 21 (UL 1741 SB), UL 62109-1, UL1741/IEEE1547, FCC Part 15 Class B, ICES-0003 Class B, CAN/CSA-C22.2 NO. 107.1-01

This product is UL Listed as PV Rapid Shut Down Equipment and conforms with NEC 2014, NEC 2017, and NEC 2020 section 690.12 and C22.1-2018 Rule 64-218 Rapid Shutdown of PV Systems, for AC and DC conductors, when installed according to manufacturer’s instructions.

Grounding

The DC circuit meets the requirements for ungrounded PV arrays in NEC. Ground fault protection (GFP) is integrated into the class II double insulated microinverter

Monitoring

Enphase Installer platform and Enphase App monitoring options. Both options require an Enphase IQ Gateway

Communication

Power line communication (PLC)

(1) No enforced DC/AC ratio. See the compatibility calculator at https://link.enphase.com/module-compatibility (2) Nominal voltage range can

be extended beyond nominal if required by the utility. (3) Limits may vary. Refer to local requirements to define the number of microinverters per

branch in your area.

Page 30

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

IQ8PLUS-72-2-US Microinverter Specifications

Enphase IQ8Plus-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

DC Parameters

Commonly used modules for pairing1

235W – 440W

Peak power tracking voltage

Operating Voltage Range

Maximum Input DC Voltage

Minimum/Maximum start voltage

Maximum continuous input DC current (module Imp)

Maximum DC input short circuit current (module Isc)

Overvoltage class DC port

DC Port backfeed under single fault

PV array configuration

1x1 ungrounded array; No additional DC side protection required; AC side protection requires max 20A per branch circuit

AC Parameters

Maximum continuous AC output power

290

Peak output power

300

Grid-tied power factor (adjustable)

0.85 leading

0.85 lagging

Nominal AC output voltage range 240 VAC (single phase) 2

Vrms

211

264

Max continuous output current

Arms

1.21

Nominal frequency

Hz 60

Extended frequency range

Maximum AC output over current protection device

AC short circuit fault current over 3 cycles

Arms for over

3 cycle

2 Arms

High AC voltage trip limit accuracy

±1.0

Low AC voltage trip limit accuracy

±1.0

Frequency trip limit accuracy

±0.1

Trip time accuracy (for trip times or delays < 5 sec.)

±ms

Trip time accuracy (for trip times or delays >= 5 sec.)

Overvoltage class AC port

III

AC port backfeed current

Power factor setting

1.0

Page 31

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase IQ8PLUS-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

Miscellaneous Parameters

Maximum3 microinverters per 20A (max) AC branch circuit 240 VAC (single phase)

CEC weighted efficiency 240 VAC (single phase)

97.0%

Total harmonic distortion

Ambient temperature range

°C

-40

+60

Night-time power consumption

Storage temperature range

°C

-40

+85

Features and Specifications

Compatibility

60-cell/120 half-cell, 66-cell and 72-cell/144 half-cell

Dimensions not including mounting bracket

212 mm (8.3”) x 175 mm (6.9”) x 30.2 mm (1.2”)

Connector Type

Enphase IQ™ Connector

Weight

1.08 kg (2.38 lbs)

Environmental Category/ UV exposure rating

NEMA Type 6 / outdoor

Torque specifications for fasteners (Do not over torque)

• 6 mm (1/4”) mounting hardware: 5 N m (45 to 50 in-lbs.)

• 8 mm (5/16”) mounting hardware: 9 N m (80 to 85 in-lbs.)

• When using UL 2703 mounting hardware, use the manufacturer’s recommended torque value

Cooling

Natural convection - No fans

Relative Humidity range

4% to 100% (condensing)

Approved for wet locations

Yes

Pollution degree

PD3

Standard Warranty Term

http://enphase.com/warranty

Enphase IQ8Plus-72-2-US Microinverter Parameters

Compliance

CA Rule 21 (UL 1741-SB), UL 62109-1, UL1741/IEEE1547, FCC Part 15 Class B, ICES-0003 Class B, CAN/CSA-C22.2 NO. 107.1-01

Grounding

The DC circuit meets the requirements for ungrounded PV arrays in NEC. Ground fault protection (GFP) is integrated into the class II double insulated microinverter

Monitoring

Enphase Installer Platform and Enphase App monitoring options. Both options require an Enphase IQ Gateway

Communication

Power line communication (PLC)

(1) No enforced DC/AC ratio. See the compatibility calculator at https://link.enphase.com/module-compatibility (2) Nominal voltage range can

be extended beyond nominal if required by the utility. (3) Limits may vary. Refer to local requirements to define the number of microinverters per

branch in your area.

Page 32

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

IQ8M-72-2-US Microinverter Specifications

Enphase IQ8M-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

DC Parameters

Commonly used modules for pairing1

260W – 460W

Peak power tracking voltage

Operating Voltage Range

Maximum Input DC Voltage

Minimum/Maximum start voltage

Maximum continuous input DC current (module Imp)

Maximum DC input short circuit current (module Isc)

Overvoltage class DC port

DC Port backfeed under single fault

PV array configuration

1x1 ungrounded array; No additional DC side protection required; AC side protection requires max 20A per branch circuit

AC Parameters

Maximum continuous AC output power

325

Peak output power

330

Power factor (adjustable)

0.85 leading

0.85 lagging

Nominal AC output voltage range 240 VAC (single phase) 2

Vrms

211

264

Max continuous output current

Arms

1.35

Nominal frequency

Hz 60

Extended frequency range

Maximum AC output over current protection device

AC short circuit fault current over 3 cycles

Arms for over

3 cycle

2 Arms

High AC voltage trip limit accuracy

±1.0

Low AC voltage trip limit accuracy

±1.0

Frequency trip limit accuracy

±0.1

Trip time accuracy (for trip times or delays < 5 sec.)

±ms

Trip time accuracy (for trip times or delays >= 5 sec.)

Overvoltage class AC port

III

AC port backfeed current

Power factor setting

1.0

Page 33

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase IQ8M-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

Miscellaneous Parameters

Maximum3 microinverters per 20A (max) AC branch circuit 240 VAC (single phase)

CEC weighted efficiency 240 VAC (single phase)

97.0%

Total harmonic distortion

Ambient temperature range

°C

-40

+60

Night-time power consumption

Storage temperature range

°C

-40

+85

Features and Specifications

Compatibility

60-cell/120 half-cell, 66-cell and 72-cell/144 half-cell

Dimensions not including mounting bracket

212 mm (8.3”) x 175 mm (6.9”) x 30.2 mm (1.2”)

Connector Type

Enphase IQ™ Connector

Weight

1.08 kg (2.38 lbs)

Environmental Category/ UV exposure rating

NEMA Type 6 / outdoor

Torque specifications for fasteners (Do not over torque)

• 6 mm (1/4”) mounting hardware: 5 N m (45 to 50 in-

lbs.)

• 8 mm (5/16”) mounting hardware: 9 N m (80 to 85

in-lbs.)

• When using UL 2703 mounting hardware, use the

manufacturer’s recommended torque value

Cooling

Natural convection - No fans

Relative Humidity range

4% to 100% (condensing)

Approved for wet locations

Yes

Pollution degree

PD3

Standard Warranty Term

http://enphase.com/warranty

Enphase IQ8M-72-2-US Microinverter Parameters

Compliance

CA Rule 21 (UL 1741-SB), UL 62109-1, UL1741/IEEE1547, FCC Part 15 Class B, ICES-0003 Class B, CAN/CSA-C22.2 NO. 107.1-01

This product is UL Listed as PV Rapid Shut Down Equipment and conforms with NEC 2014, NEC 2017, and NEC 2020 section 690.12 and C22.1-2018 Rule 64218 Rapid Shutdown of PV Systems, for AC and DC conductors, when installed according to manufacturer’s instructions.

Grounding

The DC circuit meets the requirements for ungrounded PV arrays in NEC. Ground fault protection (GFP) is integrated into the class II double insulated microinverter

Monitoring

Enphase Installer App and Enphase App monitoring options. Both options require an Enphase IQ Gateway

Communication

Power line communication (PLC)

(1) No enforced DC/AC ratio. See the compatibility calculator at https://link.enphase.com/module-compatibility (2) Nominal voltage range can

be extended beyond nominal if required by the utility. (3) Limits may vary. Refer to local requirements to define the number of microinverters

per branch in your area.

Page 34

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

IQ8A-72-2-US Microinverter Specifications

Enphase IQ8A-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

DC Parameters

Commonly used modules for pairing1

295W – 500W

Peak power tracking voltage

Operating Voltage Range

Maximum Input DC Voltage

Minimum/Maximum start voltage

Maximum continuous input DC current (module Imp)

Maximum DC input short circuit current (module Isc)

Overvoltage class DC port

DC Port backfeed under single fault

PV array configuration

1x1 ungrounded array; No additional DC side protection required; AC side protection requires max 20A per branch circuit

AC Parameters

Maximum continuous AC output power

349

Peak output power

366

Power factor (adjustable)

0.85 leading

0.85 lagging

Nominal AC output voltage range 240 VAC (single phase) 2

Vrms

211

264

Max continuous output current

Arms

1.45

Nominal frequency

Hz 60

Extended frequency range

Maximum AC output over current protection device

AC short circuit fault current over 3 cycles

Arms for over

3 cycle

2 Arms

High AC voltage trip limit accuracy

±1.0

Low AC voltage trip limit accuracy

±1.0

Frequency trip limit accuracy

±0.1

Trip time accuracy (for trip times or delays < 5 sec.)

±ms

Trip time accuracy (for trip times or delays >= 5 sec.)

Overvoltage class AC port

III

AC port backfeed current

Power factor setting

1.0

Page 35

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase IQ8A-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

Miscellaneous Parameters

Maximum3 microinverters per 20A (max) AC branch circuit 240 VAC (single phase)

CEC weighted efficiency 240 VAC (single phase)

97.5%

Total harmonic distortion

Ambient temperature range

°C

-40

+60

Night-time power consumption

Storage temperature range

°C

-40

+85

Features and Specifications

Compatibility

60-cell/120 half-cell, 66-cell and 72-cell/144 half-cell

Dimensions not including mounting bracket

212 mm (8.3”) x 175 mm (6.9”) x 30.2 mm (1.2”)

Connector Type

Enphase IQ™ Connector

Weight

1.08 kg (2.38 lbs)

Environmental Category/ UV exposure rating

NEMA Type 6 / outdoor

Torque specifications for fasteners (Do not over torque)

• 6 mm (1/4”) mounting hardware: 5 N m (45 to 50 in-

lbs.)

• 8 mm (5/16”) mounting hardware: 9 N m (80 to 85 in-

lbs.)

• When using UL 2703 mounting hardware, use the

manufacturer’s recommended torque value

Cooling

Natural convection - No fans

Relative Humidity range

4% to 100% (condensing)

Approved for wet locations

Yes

Pollution degree

PD3

Standard Warranty Term

http://enphase.com/warranty

Enphase IQ8A-72-2-US Microinverter Parameters

Compliance

CA Rule 21 (UL 1741-SB), UL 62109-1, UL1741/IEEE1547, FCC Part 15 Class B, ICES-0003 Class B, CAN/CSA-C22.2 NO. 107.1-01

Grounding

The DC circuit meets the requirements for ungrounded PV arrays in NEC. Ground fault protection (GFP) is integrated into the class II double insulated microinverter

Monitoring

Enphase Installer Platform and Enphase App monitoring options. Both options require an Enphase IQ Gateway

Communication

Power line communication (PLC)

(1) No enforced DC/AC ratio. See the compatibility calculator at https://link.enphase.com/module-compatibility (2) Nominal voltage range can

be extended beyond nominal if required by the utility. (3) Limits may vary. Refer to local requirements to define the number of microinverters per

branch in your area.

Page 36

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

IQ8H-240-72-2-US Microinverter Specifications

Enphase IQ8H-240-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

DC Parameters

Commonly used modules for pairing1

320W – 540W+

Peak power tracking voltage

Operating Voltage Range

Maximum Input DC Voltage

Minimum/Maximum start voltage

Maximum continuous input DC current (module Imp)

Maximum DC input short circuit current (module Isc)

Overvoltage class DC port

DC Port backfeed under single fault

PV array configuration

1x1 ungrounded array; No additional DC side protection required; AC side protection requires max 20A per branch circuit

AC Parameters

Maximum continuous AC output power

380

Peak output power

384

Power factor (adjustable)

0.85 leading

0.85 lagging

Nominal AC output voltage range2 240 VAC (single phase)

Vrms

211

264

Max continuous output current

Arms

1.58

Nominal frequency

Hz 60

Extended frequency range

Maximum AC output over current protection device

AC short circuit fault current over 3 cycles

Arms for over

3 cycle

2 Arms

High AC voltage trip limit accuracy

±1.0

Low AC voltage trip limit accuracy

±1.0

Frequency trip limit accuracy

±0.1

Trip time accuracy (for trip times or delays < 5 sec.)

±ms

Trip time accuracy (for trip times or delays >= 5 sec.)

Overvoltage class AC port

III

AC port backfeed current

Power factor setting

1.0

Page 37

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase IQ8H-240-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

Miscellaneous Parameters

Maximum3 microinverters per 20A (max) AC branch circuit 240 VAC (single phase)

CEC weighted efficiency 240 VAC (single phase)

97.0%

Total harmonic distortion

Ambient temperature range

°C

-40

+60

Night-time power consumption

Storage temperature range

°C

-40

+85

Features and Specifications

Compatibility

60-cell/120 half-cell, 66-cell and 72-cell/144 half-cell

Dimensions not including mounting bracket

212 mm (8.3”) x 175 mm (6.9”) x 30.2 mm (1.2”)

Connector Type

Enphase IQ™ Connector

Weight

1.08 kg (2.38 lbs)

Environmental Category/ UV exposure rating

NEMA Type 6 / outdoor

Torque specifications for fasteners (Do not over torque)

• 6 mm (1/4”) mounting hardware: 5 N m (45 to 50 in-

lbs.)

• 8 mm (5/16”) mounting hardware: 9 N m (80 to 85 in-

lbs.)

• When using UL 2703 mounting hardware, use the

manufacturer’s recommended torque value

Cooling

Natural convection - No fans

Relative Humidity range

4% to 100% (condensing)

Approved for wet locations

Yes

Pollution degree

PD3

Standard Warranty Term

http://enphase.com/warranty

Enphase IQ8H-240-72-2-US Microinverter Parameters

Compliance

CA Rule 21 (UL 1741-SB), UL 62109-1, UL1741/IEEE1547, FCC Part 15 Class B, ICES-0003 Class B, CAN/CSA-C22.2 NO. 107.1-01

Grounding

The DC circuit meets the requirements for ungrounded PV arrays in NEC. Ground fault protection (GFP) is integrated into the class II double insulated microinverter

Monitoring

Enphase Installer Platform and Enphase App monitoring options. Both options require an Enphase IQ Gateway

Communication

Power line communication (PLC)

(1) No enforced DC/AC ratio. See the compatibility calculator at https://link.enphase.com/module-compatibility (2) Nominal voltage range can

be extended beyond nominal if required by the utility. (3) Limits may vary. Refer to local requirements to define the number of microinverters per

branch in your area.

Page 38

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

IQ8H-208-72-2-US Microinverter Specifications

Enphase IQ8H-208-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

DC Parameters

Commonly used modules for pairing1

295W – 500W+

Peak power tracking voltage

Operating Voltage Range

Maximum Input DC Voltage

Minimum/Maximum start voltage

Maximum continuous input DC current (module Imp)

Maximum DC input short circuit current (module Isc)

Overvoltage class DC port

DC Port backfeed under single fault

PV array configuration

1x1 ungrounded array; No additional DC side protection required; AC side protection requires max 20A per branch circuit

AC Parameters

Maximum continuous AC output power

360

Peak output power

366

Power factor (adjustable)

0.85 leading

0.85 lagging

Nominal AC output voltage range2 208 VAC

Vrms

183

250

Max continuous output current

Arms

1.73

Nominal frequency

Hz 60

Extended frequency range

Maximum AC output over current protection device

AC short circuit fault current over 3 cycles

Arms for over

3 cycle

4 Arms

High AC voltage trip limit accuracy

±1.0

Low AC voltage trip limit accuracy

±1.0

Frequency trip limit accuracy

±0.1

Trip time accuracy (for trip times or delays < 5 sec.)

±ms

Trip time accuracy (for trip times or delays >= 5 sec.)

Overvoltage class AC port

III

AC port backfeed current

Power factor setting

1.0

Page 39

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase IQ8H-208-72-2-US Microinverter Parameters

Topic

Unit

Min

Typical

Max

Miscellaneous Parameters

Maximum3 microinverters per 20A (max) AC branch circuit 208 VAC

CEC weighted efficiency 208 VAC

97.0%

Total harmonic distortion

Ambient temperature range

°C

-40

+60

Night-time power consumption

Storage temperature range

°C

-40

+85

Features and Specifications

Compatibility

60-cell/120 half-cell, 66-cell and 72-cell/144 half-cell

Dimensions not including mounting bracket

212 mm (8.3”) x 175 mm (6.9”) x 30.2 mm (1.2”)

Connector Type

Enphase IQ™ Connector

Weight

1.08 kg (2.38 lbs)

Environmental Category/ UV exposure rating

NEMA Type 6 / outdoor

Torque specifications for fasteners (Do not over torque)

• 6 mm (1/4”) mounting hardware: 5 N m (45 to 50

in-lbs.)

• 8 mm (5/16”) mounting hardware: 9 N m (80 to 85

in-lbs.)

• When using UL 2703 mounting hardware, use the

manufacturer’s recommended torque value

Cooling

Natural convection - No fans

Relative Humidity range

4% to 100% (condensing)

Approved for wet locations

Yes

Pollution degree

PD3

Standard Warranty Term

http://enphase.com/warranty

Enphase IQ8H-208-72-2-US Microinverter Parameters

Compliance

CA Rule 21 (UL 1741-SB), UL 62109-1, UL1741/IEEE1547, FCC Part 15 Class B, ICES-0003 Class B, CAN/CSA-C22.2 NO. 107.1-01

Grounding

The DC circuit meets the requirements for ungrounded PV arrays in NEC. Ground fault protection (GFP) is integrated into the class II double insulated microinverter

Monitoring

Enphase Installer Platform and Enphase App monitoring options. Both options require an Enphase IQ Gateway

Communication

Power line communication (PLC)

(1)

No enforced DC/AC ratio. See the compatibility calculator at https://link.enphase.com/module-compatibility (2) Nominal voltage range can

be extended beyond nominal if required by the utility. (3) Limits may vary. Refer to local requirements to define the number of

microinverters per branch in your area. (4) The IQ8H-208 variant will be operating in grid-tied mode only at 208V AC

Note: IQ8H-208 supports split phase, 208V in grid-tied mode only.

Page 40

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

IQ Cable Specifications

Specification

Value

Voltage Rating

600V

Voltage withstand test (kV/1min)

AC 3.0

Max DC conductor resistance (20ºC) (Ω/km)

5.433

Insulation resistance (20ºC)

≥20M (Ω/Km)

System temperature range (ambient)

-40ºC to +65ºC (-40ºF to 149ºF)

Cable temperature rating

90ºC Dry / 90ºC Wet

Cable rating

Certification

UL3003, TC-ER equivalent

Flame test rating

FT4

Cable conductor insulator rating

THHN/THWN-2

Environmental protection rating

IEC 60529 IP67NEMA 6

UV resistance

720h

Compliance

RoHS, OIL RES I, CE, UV Resistant, combined UL for Canada, and United States

Conductor size

12 AWG

Maximum loop size

12 cm (4.75 “)

Flat cable dimensions

6 mm x 9.5 mm (0.2” x 0.37”)

Sealing cap dimensions

38.6 mm x 20 mm (1.5” x 0.7”)

Cable connector dimensions

20 mm x 1.1 mm x 6.5 mm (0.7” x 0.04” x 0.25”)

Enphase Connector Ratings

Enphase Connectors on the cable assemblies in the following table have a maximum current of 20 A, a maximum OCPD of 20 A, and maximum ambient temperature of -40° to +79° C (-40° to +174.2° F) and are

rated for disconnection under load

Part Number

Model

Maximum Voltage

840-00387

Q-12-10-240

277VAC

840-00388

Q-12-17-240

277VAC

840-00389

Q-12-20-200

277VAC

840-00385

Q-DCC-2

100VDC

840-00386

Q-DCC-5

100VDC

Page 41

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Enphase Installation Map

Page 42

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Sample wiring diagram

Enphase IQ8, IQ8M, IQ8A, IQ8H, IQ8-60-2-US Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual