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Power Assemblies and Controllers

Circuit Protection

Solar Arc Flash Detection

Littelfuse understands the challenges facing the solar market, they have over 25 million devices installed in photovoltaic power systems to protect equipment subjected to harsh environments, including solar rated fuses, relays, TVS diodes, varistors, power distribution blocks and surge protection devices.

Littelfuse Solar Arc Flash Detection by GD Rectifiers

AF0100

The AF0100 series offers a cost effective solution that reduces arc-fault damage by detecting the light from an arc flash and rapidly tripping. Two remote light sensors can be connected to one relay and multiple AF0100 and/or AF0500 relays can be connected to monitor additional sensors, providing complete coverage for a wide range of applications. The compact, DIN-rail or surface mountable body makes this device an ideal solution for equipment manufacturers. 

Supply Voltage (VAC): 100-240

Supply voltage (VDC): 24-48, 24-48 100-240

Relay Contacts: 2 6-A Form C (N.O./N.C.) Trip; 1 6-A Form C Health

 

Part Number  

Supply Voltage (VAC)

Supply Voltage (VDC)

Relay Contacts

Approvals

Relay Contact Operating Mode

Dimensions

AF0100-00

100-240

24-48 100-240

2 6-A Form C (N.O./N.C.) Trip; 1 6-A Form C Health

cULus CE RCM CE

Fail-safe Non-Fail-safe

Failsafe Non-Failsafe

3.5H x 5.0W x 2.4D

AF0100-10

100-240

24-48

 

cULus CE RCM CE

Fail-safe Non-Fail-safe

Failsafe Non-Fail-Safe

3.5H x 5.0W x 2.4D

 

 

AF0500

The AF0500 is a microprocessor based arch-flash protection relay that limits arc-fault damage by detecting the light form an arc flash and rapidly tripping the feeder breaker. The unit is designed for switchgear, transformer, motor controls centre and power converter applications. The sensors, inputs and connections are health monitored to ensure fail-safe operation. A redundant trip path is provided by a secondary solid-state trip circuit. A USB port is used for configuration and access to event logs and includes Ethernet interface and supports Modbus TCP communication. Zone tripping, upstream breaker tripping and tie breaker tripping applications can be easily configured with the AF0500 series.

Supply Voltage (VAC): 120/240

Supply Voltage (VDC): 12-48/120/240

Relay Contacts: Three Form C (N.O./N.C.); One Form A (N.O.).

 

Part Number  

Supply Voltage (VAC)

Supply Voltage (VDC)

Relay Contacts

Approvals

Relay Contact Operating Mode

Dimensions

AF0500-00

100/240

 

Three Form C (N.O./N.C.); One Form A (N.O.)

UL cULus CE C-tick

2 IGBT switches

Fail-safe Non Fail-safe

AF0500-00-CC

 

110/250

 

UL cULus CE C-tick

2 IGBT switches

Fail-safe Non Fail-safe

 

 

 

PGR-8800

The PGR-8800 is a UL and cUL listed arc-flash relay that reliably detects developing arch-flash incidents without nuisance tripping by looking for a combination of excess light and current. Phase-current transformer inputs are provided for current-constrained arc-flash protection and, when equipped, a programmable definite-time overcurrent function can be enabled. Chances of the PGR-8800 nuisance tripping by setting a threshold ambient light are reduced because of an optical sensor on the device. Sensors, inputs and connections are monitored to ensure fail-safe operation. A secondary solid-state trip circuit provides a redundant trip path and a USB port is used for configuration and access event logs and graphs. This device is also used as part of an energy-reducing active arc-flash mitigation system to meet NEC 240.87 (B) (4).

Supply Voltage (VAC): 120/240

Supply Voltage (VDC): 12-48/120/240

Relay Contacts: Three Form c (N.O./N.C.); One Form a (N.O.)

 

Part Number  

Supply Voltage (VAC)

Supply Voltage (VDC)

Relay Contacts

Approvals

PGR-8800-00

120/240

12-48/120/240

Three Form C (N.O./N.C.); One Form A (N.O.)

UL cULus CE C-tick

 

For further information on Littelfuse’s Arch Flash Detection Devices please call us on: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).

Littelfuse

Littelfuse is a global leader in circuit protection, power semiconductors and power control and sensing platforms. The company was founded in 1927 and acquired IXYS Corporation in 2018.

Further information:

You can find further information on Littelfuse using the following links:

Tel: 01444 243 452

Fax: 01444 870 722

Email: enquiries@gdrectifiers.co.uk