The information contained in these documents is property of SMA Solar Technology AG. Any
publication, whether in whole or in part, requires prior written approval by SMA Solar Technology
AG. Internal reproduction used solely for the purpose of product evaluation or other proper use is
allowed and does not require prior approval.
SMA Warranty
You can download the current warranty conditions from the Internet at www.SMA-Solar.com.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. A lack of identification does
not mean that a product or symbol is not trademarked.
The BLUETOOTH® word mark and logos are registered trademarks of BluetoothSIG,Inc. and any
use of these marks by SMASolarTechnologyAG is under license.
Modbus® is a registered trademark of Schneider Electric and is licensed by the Modbus
Organization, Inc.
QR Code is a registered trademark of DENSO WAVE INCORPORATED.
Phillips® and Pozidriv® are registered trademarks of Phillips Screw Company.
Torx® is a registered trademark of Acument Global Technologies, Inc.
14 EC Declaration of Conformity .................................................. 58
Operating Manual5SB30-50TL-21-BE-en-11
1 Information on this Document
SMA Solar Technology AG
1Information on this Document
1.1Validity
This document is valid for the following device types from firmware version2.55:
• SB3000TL-21 (SunnyBoy3000TL)
• SB3600TL-21 (SunnyBoy3600TL)
• SB4000TL-21 (SunnyBoy4000TL)
• SB5000TL-21 (SunnyBoy5000TL)
1.2Target Group
This document is intended for qualified persons and end users. Only qualified persons are allowed
to perform the activities marked in this document with a warning symbol and the caption
"Qualifiedperson". Tasks that do not require any particular qualification are not marked and can
also be performed by end users. Qualified persons must have the following skills:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing and using
electrical devices and installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of the applicable standards and directives
• Knowledge of and compliance with this document and all safety information
1.3Additional Information
Links to additional information can be found at www.SMA-Solar.com:
Document title and contentDocument type
Troubleshooting, Cleaning, Replacement of
Varistors and Decommissioning
"Overview of the Rotary Switch Settings"
Overview of the rotary switch settings for config-
uring the country data set and display language
"Efficiency and Derating"
Efficiency and Derating Behavior of the SunnyBoy, SunnyTripower and SunnyMiniCentral
Inverters
"Criteria for Selecting a Residual-Current Device" Technical Information
"Circuit Breaker"
Dimensioning and Selection of a Suitable AC
Circuit Breaker for Inverters under PV-Specific Influences
Service Manual
Technical Information
Technical Information
Technical Information
Operating ManualSB30-50TL-21-BE-en-116
SMA Solar Technology AG
Document title and contentDocument type
"Insulation Resistance (Riso) of Non-Galvanically
Isolated PV Systems"
"IntegratedPlantControl and QonDemand24/7"
Detailed explanation of functions and description for setting the functions
"Webconnect Systems in SunnyPortal"
Registration in SunnyPortal
"Firmware Update with SD Card"Technical Description
"Parameter list"
Overview of All Inverter Operating Parameters
and Their Configuration Options
Technical Information
Technical Information
User Manual
Technical Information
1.4Symbols
SymbolExplanation
Indicates a hazardous situation which, if not
avoided, will result in death or serious injury
Indicates a hazardous situation which, if not
avoided, can result in death or serious injury
Indicates a hazardous situation which, if not
avoided, can result in minor or moderate injury
Indicates a situation which, if not avoided, can result in property damage
Sections describing activities to be performed by
qualified persons only
Information that is important for a specific topic or
goal, but is not safety-relevant
Indicates a requirement for meeting a specific goal
Desired result
A problem that might occur
1 Information on this Document
1.5Nomenclature
Complete designationDesignation in this document
Sunny BoyInverter, product
Operating Manual7SB30-50TL-21-BE-en-11
1 Information on this Document
SMA Solar Technology AG
Complete designationDesignation in this document
Electronic Solar SwitchESS
SMA BLUETOOTH Wireless TechnologyBLUETOOTH
Operating ManualSB30-50TL-21-BE-en-118
SMA Solar Technology AG
2 Safety
2Safety
2.1Intended Use
The SunnyBoy is a transformerless PV inverter with two MPP trackers which converts the direct
current of the PV array to grid-compliant alternating current and feeds it into the utility grid.
The product is suitable for indoor and outdoor use.
The product must only be operated with PV arrays of protection class II in accordance with
IEC61730, application class A. The PV modules must be compatible with this product.
PV modules with a high capacity to ground must only be used if their coupling capacity does not
exceed 1.4 μF (for information on how to calculate the coupling capacity, see the Technical
Information "Leading Leakage Currents" at www.SMA-Solar.com).
All components must remain within their permitted operating ranges at all times.
The product must only be used in countries for which it is approved or released by
SMASolarTechnologyAG and the grid operator.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.
Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMASolarTechnologyAG. Unauthorized alterations will void guarantee and
warranty claims and usually void the operation permit. SMASolarTechnologyAG shall not be
held liable for any damage caused by such changes.
Any use of the product other than that described in the Intended Use section does not qualify as
appropriate.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.
The type label must remain permanently attached to the product.
2.2Safety Information
This section contains safety information that must be observed at all times when working on or with
the product.
To prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
Operating Manual9SB30-50TL-21-BE-en-11
2 Safety
SMA Solar Technology AG
Danger to life due to high voltages of the PV array
When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the
DC conductors and the live components of the inverter. Touching the DC conductors or the live
components can lead to lethal electric shocks. If you disconnect the DC connectors from the
inverter under load, an electric arc may occur leading to electric shock and burns.
• Do not touch non-insulated cable ends.
• Do not touch the DC conductors.
• Do not touch any live components of the inverter.
• Have the inverter mounted, installed and commissioned only by qualified persons with the
appropriate skills.
• If an error occurs, have it rectified by qualified persons only.
• Prior to performing any work on the inverter, disconnect it from all voltage sources as
described in this document (see Section10 "Disconnecting the Inverter from Voltage
Sources", page45).
Danger to life due to electric shock
Touching an ungrounded PV module or array frame can cause a lethal electric shock.
• Connect and ground the PV modules, array frame and electrically conductive surfaces so
that there is continuous conduction. Observe the applicable local regulations.
Risk of burns due to hot enclosure parts
Some parts of the enclosure can get hot during operation.
• Do not touch any parts other than the lower enclosure lid of the inverter during operation.
Damage to the display or the type label due to the use of cleaning agents
• If the inverter is dirty, clean the enclosure, the enclosure lid, the type label, the display and
the LEDs with a damp cloth only.
Operating ManualSB30-50TL-21-BE-en-1110
SMA Solar Technology AG
3 Scope of Delivery
3Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact your
distributor if the scope of delivery is incomplete or damaged.
Figure 1: Components included in the scope of delivery
PositionQuantityDesignation
A1Inverter*
B1Wall mounting bracket
C4Positive DC connector
D4Negative DC connector
E8Sealing plug for DC connectors
F1Cable gland M32x1.5
G1Counter nut for cable gland M32x1.5
H1Quick Reference Guide for Installation, installation manual
of the SMASpeedwire/Webconnect data module, installation manual of the DC connectors, supplementary sheet
with default settings, supplementary sheet with access
data for registration in SunnyPortal
I1Warning label
* Optional without ElectronicSolarSwitch (ESS)
Operating Manual11SB30-50TL-21-BE-en-11
4 Product Description
SMA Solar Technology AG
4Product Description
4.1Sunny Boy
The SunnyBoy is a transformerless PV inverter with two MPP trackers which converts the direct
current of the PV array to grid-compliant alternating current and feeds it into the utility grid.
Figure 2: Design of the SunnyBoy
PositionExplanation
AUpper enclosure lid
BType label
The type label uniquely identifies the inverter. You will require the information
on the type label to use the product safely and when seeking customer support from the SMAServiceLine. You will find the following information on the
type label:
• Device type (Model)
• Serial number (SerialNo.)
• Date of manufacture
• Device-specific characteristics
CAdditional label with details for registration in SunnyPortal:
• Internet address of the PV System Setup Assistant
• Identification key (PIC)
• Registration ID (RID)
DLEDs
The LEDs indicate the operating state of the inverter (see Section9.1 "LED Signals", page41).
Operating ManualSB30-50TL-21-BE-en-1112
SMA Solar Technology AG
PositionExplanation
EDisplay
The display shows the current operating data and events or errors (see Section9.2 "Display Overview", page41).
FElectronicSolarSwitch (ESS)*
The ESS and the DC connectors together form a DC load-break switch. When
plugged in, the ESS forms a conductive path between the PV array and the inverter. Removing the ESS interrupts the DC electric circuit and removing all DC
connectors disconnects the PV array completely from the inverter.
GLower enclosure lid
* Optional
Symbols on the inverter, the type label and the ESS
SymbolExplanation
Inverter
Together with the green LED, this symbol indicates the operating state of
the inverter.
Observe the documentation
Together with the red LED, this symbol indicates an error (for troubleshooting, see the service manual at www.SMA-Solar.com).
BLUETOOTH
Together with the blue LED, the symbol indicates active communication
via BLUETOOTH.
Danger
This symbol indicates that the inverter must be additionally grounded if
additional grounding or equipotential bonding is required at the installation site (see Section6.3.3, page27).
QRCode
Links to additional information on the inverter can be found at
www.SMA-Solar.com.
4 Product Description
Operating the inverter without the lower enclosure lid is prohibited. Always operate the inverter with the lower enclosure lid.
Operating Manual13SB30-50TL-21-BE-en-11
4 Product Description
SymbolExplanation
Operating principle of the ESS:
• If the ESS is plugged in, the DC electric circuit is closed.
• To interrupt the DC electric circuit, you must perform the
following steps in the given order:
–Remove the ESS.
– Unlock and remove all DC connectors.
Danger to life due to electric shock
The product operates at high voltages. All work on the product must be
carried out by qualified persons only.
Risk of burns due to hot surfaces
The product can get hot during operation. Avoid contact during opera-
tion. Allow the product to cool down sufficiently before carrying out any
work.
Observe the documentation
Observe all documentation supplied with the product.
Direct current
The product does not have a transformer.
SMA Solar Technology AG
Alternating current
WEEE designation
Do not dispose of the product together with the household waste but in
accordance with the locally applicable disposal regulations for electronic
waste.
CE marking
The product complies with the requirements of the applicable EU direc-
tives.
Device class ID
The product is equipped with a wireless component and complies with
device class2.
Degree of protectionIP65
The product is protected against dust intrusion and water jets from any
angle.
Operating ManualSB30-50TL-21-BE-en-1114
SMA Solar Technology AG
SymbolExplanation
The product is suitable for outdoor installation.
Certified safety
The product is VDE-tested and complies with the requirements of the Ger-
man Equipment and Product Safety Act.
RCM (Regulatory Compliance Mark)
The product complies with the requirements of the applicable Australian
standards.
4 Product Description
4.2Interfaces and Functions
The inverter can be equipped or retrofitted with the following interfaces and functions:
BLUETOOTH
Via BLUETOOTH, the inverter can communicate with various BLUETOOTH devices (for information
on supported SMA products, see www.SMA-Solar.com).
SMA Speedwire/Webconnect
The inverter is equipped with SMA Speedwire/Webconnect as standard. SMA Speedwire/
Webconnect is a type of communication based on the Ethernet standard. This enables inverteroptimized 10/100Mbit data transmission between Speedwire devices in PV systems and the
software Sunny Explorer. The Webconnect function enables direct data transmission between the
inverters of a small-scale system and the Internet portal SunnyPortal without any additional
communication device and for a maximum of four inverters per SunnyPortal system. In large-scale
PV power plants, data transmission to the Internet portal SunnyPortal is carried out via the
SMAClusterController. You can access your SunnyPortal system from any computer with an
Internet connection.
SMA Speedwire/Webconnect enables, for PV systems operated in Italy, the connection to or
disconnection of the inverter from the utility grid and definition of the frequency limits to be used
with IEC61850-GOOSE messages.
RS485 interface
The inverter can communicate via cables with special SMA communication products via the RS485
interface (information on supported SMAproducts at www.SMA-Solar.com). The RS485 interface
can be retrofitted.
Grid Management Services
The inverter is equipped with service functions for grid management.
Depending on the requirements of the grid operator, you can activate and configure the functions
(e.g. active power limitation) via operating parameters.
Operating Manual15SB30-50TL-21-BE-en-11
4 Product Description
SMA Solar Technology AG
SMA Power Control Module
The SMAPowerControlModule enables the inverter to implement grid management services and
is equipped with an additional multifunction relay (for information on installation and configuration,
see the installation manual of the SMAPowerControlModule). The SMAPowerControlModule
can be retrofitted.
Multifunction Relay
You can configure the multifunction relay for various operating modes. The multifunction relay is
used, for example, to switch fault indicators on or off (for information on installation and
configuration, see the installation manual of the multifunction relay). The multifunction relay can be
retrofitted.
Fan retrofit kit
The fan retrofit kit is used for additional inverter cooling at high ambient temperatures and also has
a multifunction relay (for information on installation and configuration, see the installation manual of
the fan retrofit kit). The fan retrofit kit can be retrofitted and must not be operated in parallel with the
SMAPowerControlModule.
SMAOptiTracGlobalPeak
SMAOptiTracGlobalPeak is an advancement of SMAOptiTrac and allows the operating point of
the inverter to follow the optimal operating point of the PV array (MPP) precisely at all times. In
addition, with the aid of SMAOptiTracGlobalPeak, the inverter can detect the presence of several
maximum power points in the available operating range, such as may occur particularly with
partially shaded strings. SMA OptiTrac Global Peak is enabled by default.
All-pole sensitive residual-current monitoring unit
The all-pole sensitive residual-current monitoring unit detects alternating and direct differential
currents. In single-phase and three-phase inverters, the integrated differential current sensor detects
the current difference between the neutral conductor and the line conductor(s). If the current
difference increases suddenly, the inverter disconnects from the utility grid.
Operating ManualSB30-50TL-21-BE-en-1116
SMA Solar Technology AG
5 Mounting
5Mounting
5.1Requirements for Mounting
Requirements for the mounting location:
Danger to life due to fire or explosion
Despite careful construction, electrical devices can cause fires.
• Do not mount the inverter in areas containing highly flammable materials or gases.
• Do not mount the inverter in a potentially explosive atmosphere.
☐ The mounting location must be inaccessible to children.
☐ A solid support surface must be available for mounting, e.g. concrete or masonry. When
mounted on drywall or similar materials in the living area, the inverter emits audible vibrations
during operation which could be perceived as annoying.
☐ The mounting location must be suitable for the weight and dimensions of the inverter (see
Section11 "Technical Data", page47).
☐ To ensure optimum operation, the ambient temperature should be between -25°C and 40°C.
☐ The mounting location should not be exposed to direct solar irradiation. Direct solar irradiation
can cause the inverter to overheat. As a result, the inverter reduces its power output.
☐ Climatic conditions must be met (see Section11 "Technical Data", page47).
☐ The mounting location should be freely and safely accessible at all times without the need for
any auxiliary equipment (such as scaffolding or lifting platforms). Non-fulfillment of these
criteria may restrict servicing.
Operating Manual17SB30-50TL-21-BE-en-11
5 Mounting
Dimensions for mounting:
SMA Solar Technology AG
Figure 3: Position of the anchoring points
Recommended clearances:
If you maintain the recommended clearances, adequate heat dissipation will be ensured. Thus, you
will prevent power reduction due to excessive temperature.
☐ Maintain the recommended clearances to walls as well as to other inverters or objects.
☐ If multiple inverters are mounted in areas with high ambient temperatures, increase the
clearances between the inverters and ensure sufficient fresh-air supply.
Operating ManualSB30-50TL-21-BE-en-1118
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