Solar Arc Flash Detection

Discover our cost-effective solutions which reduces arc-fault damage by detecting the light from an arc flash and rapidly tripping, available from 100-240Vac.

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Solar Arc Flash Detection

Ideal for solar rated fuses, relays, varistors and SPDs

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.

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 arc-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 arc-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: enquiries@gdrectifiers.co.uk.