Littelfuse PGR-8800-00 Arc-Flash Relay

Littelfuse Arc-Flash Relay, Standard, DIN Rail/Panel Mount, 5.2 in H x 7.9 in W x 2.2 in D

Additional Description: LTFS-PGR-8800-00 Standard Arc-Flash Relay with no comm.

Catalog Description: Standard Arc-Flash Relay with no comm.. 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 so equipped, a programmable definite-time overcurrent function can be enabled. An optical sensor on the PGR-8800 and adjustable trip level reduce the chance of nuisance tripping by setting a threshold for ambient light. Sensors, inputs, and connections are monitored to ensure fail-safe operation. A secondary solid-state trip circuit provides a redundant trip path. A USB port isused for configuration and access event logs and graphs.