Littelfuse AC6000 User Manual

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Page 1

Personnel Protection

Industrial Shock-Block

SB6000 SERIES

Industrial

Open-Chassis Model*Enclosed Model*

Operator Interface*

*Patent Pending

Simpliﬁed Circuit Diagram

AUXILIARY CONTACT

SB6100

ENCLOSED SB6100 MODELS

* For a single-phase load; Jumper L

& use L1 & L2 as the input terminals

Ordering Information

ORDERING NUMBER

SB6100-00x-0 208

SB6100-10x-0 240

SB6100-20x-0 480

SB6100-30x-0 600

SB6100-01x-0 208

SB6100-11x-0 240

SB6100-21x-0 480

SB6100-31x-0 600

Note: x=0 for open-chassis models and 1 for enclosed models

VOLTAGE

(V)

TRIP

LEVEL (mA)

(Fixed)

6, 10, 20, 30 (Selectable)

& L

LOAD

TERMINATION DEVICE

SB-OPI

(Operator Interface)

UL CATEGORY/CLASS

UL 943C Class C special-purpose GFCI

UL 943C Class D special-purpose GFCI

UL 943/UL 1053 Equipment ground-fault protective device (EGFPD)

Description

Special Purpose Ground-Fault Circuit Interrupter (GFCI), Class C and Class D

Industrial Shock Block (ISB) is a personnel protection device designed to meet the new requirements for special-purpose GFCIs deﬁned by UL 943C. ISB is the ﬁrst and only permanently connected Class C and Class D GFCI on the market. Class C GFCIs is introduced to be used on systems where the line -to-line voltage is 480 V or less with a trip level of 20 mA, while Class D GFCI is intended to be used on 600 V systems. These improvements to the standard Class A GFCI (6 mA trip level used on 240 V systems or less) were made to allow the use of GFCIs in industrial facilities.

Equipment Ground-Fault Protective Device (EGFPD)

ISB is also available with adjustable protection settings as an EGFPD. The EGFPD models can be set to trip at 6, 10, 20 or 30 mA. This offers more ﬂexibility since GFCI devices are not allowed to have an adjustable trip level.

Rating and Models

ISB (GFCI & EGFPD) is available for voltage from 208 to 600 V with a maximum full load current of 100 A , and a built- in overcurrent protection supplied by Littelfuse Class T fuses. The load can be 1-phase (line -to-line) or 3-phase, however, cannot have a neutral. The power system can either be solidly- grounded or high-resistance grounded.

Two options for enclosures are available: UL-recognized open- chassis models are available for installation in existing electrical enclosure and UL-listed enclosed models include a NEMA-4X enclosure for stand-alone installations.

Ground Wire (Load-Ground) Monitor

The ISB also monitors the ground wire (load- ground) connection between the ISB and load. This is a required feature for GFCI devices and is optional for EGFPD devices. If the connection is broken, the ISB will provide an alarm by changing the state of the alarm contacts. This monitoring circuit includes an extra wire (pilot wire) between the ISB and load (since the monitoring current is low, only a small wire is required). At the load, the pilot wire is connected to a termination device. The other end of the termination device is connected to the load ground (typically the enclosure)

Features & Beneﬁts

FEATURES BENEFITS

UL 943 inverse time trip curve

Minimum trip time < 20 msec

UL 943C ﬁxed trip level (GFCI 20 mA)

Selectable trip levels (EGFPD)

UL 943C ground monitor/ interrupt

Undervoltage, brownout, chatter detection

3 x Class T, 600 V incoming fuses

Conformal coating

Operator Interface

Auxiliary Contact Provides a normally-open contact for remote indication

Dete cts and inter rupts to pr otect peo ple and reduce the prob ability of nuisa nce trippin g

Reduc es the risk of ve ntricular ﬁb rillation for le akage curre nt of 250 m A and above

GFCI protection for systems with leakage current higher than the standard 6 mA required by UL 943 Class A

Provides extra safety when a customer is able to operate with a setting below 20 mA (GFCI) and the settings above 20 mA can reduce nuisance tripping on systems with high leakage current.

Protects from shock by tripping if continuity of ground wire between Industrial Shock-Block and load is broken.

Ensures proper operation and prolongs the internal contactor lifetime

The fuses provide overcurrent protection for a 100 A circuit and a higher short-circuit current (SCC) rating of 50 kA.

Internal circuits are conformally coated to protect against corrosion and moisture, yet still repairable

Shows unit status, alarm types, percentage of leakage current, and allows for Test and Reset capabilities

Littelfu se reserves the r ight to m ake product changes, wit hout notice . Mate rial in this document is as accurate as know n at the time of pu blication. V isit Littel fuse.com for the mo st up-to- date information.

Based on Manual Rev. 1-B-112913

Rev: 4-H-112613

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Personnel Protection - PRELIMINARY

Industrial Shock-Block

SB6000 SERIES

Accessories

Operator Interface (AC6000-OPI-00)

1N5339B - Termination Device

Axial-lead ground-check termination, included with SB6000 series

SE-TA6 - Termination Assembly

Optional termination assembly with terminals and mounting holes

SE-TA6-SM Stud-Mount Termination Assembly

Optional ground-check termination for submersible pumps.

AC6000-CART-00 Two-wheeled Cart

Optional for mounting ISB to allow for moving the unit while power is off

Connection Diagram

The SB6100 is installed in-line between incoming power or existing over-current protection device and the load.

The open-chassis SB6100 can be installed in electrical equipment and the enclosed version is typically wall-mounted.

Incoming Power

Circuit Breaker

SB6100 Industrial Shock-Block Open-Chasis Model

Circuit Breaker

SB6100 Industrial Shock-Block Enclosed Model

AC6000-MNT-00 Mounting Frame

Optional for mounting ISB to a cart or other surface. Included with the AC6000-CART-00.

Ordering Information - Accessories

ACCESSORIES REQUIREMENT PAGE*

AC6000-OPI-00 Included N/A

1N5339B Included 120

SE-TA6 Optional 120

SE-TA6-SM Optional 120

SE-TA6ASF-WL Optional 120

AC6000-CART-00 Optional N/A

AC6000-MNT-00 Optional N/A

Speciﬁcations

Voltage Rating See ordering information

Amperage Rating 100 A (continuous)

Load 3-phase, 3-wire (no neutral) or 1-phase

(line-to-line), 60 Hz

Short Circuit Rating 50,000 A

Trip Level Settings Selectable (6, 10, 20, 30 mA), or ﬁxed at 20 mA

Trip Time Setting Inverse time trip curve

Enclosure NEMA 4X, Polyester, Lockable

Operating Temperature –35°C (–31°F) to +40°C(104°F), up to +66°C (151°F)

with derating

Wiring Requirements 2/0 AWG (maximum)

Approval GFCI: UL Listed (enclosed models) and UL Recognized

component (open-chassis models) EGFPD: cULus Listed (enclosed models) and cURus Recognized Component (open-chassis models)

Dimensions Enclosed: H 453.8 mm (17.9”); W 406.2 mm (16.0”); D 223.3 mm (8.8”)

Open-chassis: H 455.0 mm (17.9”); W 340.7 mm (13.4”); D 174.9 mm (6.8”)

Warranty 1 year

Based on Manual Rev. 1-B-112913

Rev: 4-H-112613