Littelfuse, Inc. PGR-8800 Series – Arc-Flash Relay PGR-8800-00-CC

The PGR-8800-00-CC is a conformally coated arc-flash relay for rapid arc detection and circuit breaker tripping in switchgear, motor control centers, and transformer compartments. It measures 130 mm high, 200 mm wide, and 54 mm deep, and mounts on a DIN rail using adapter clips. The relay operates on 100-240 V AC, 14-48 V DC, or 110-250 V DC, and uses optical sensors with adjustable trip thresholds of 9-25 klux to detect arcs in under 1 ms. It supports up to six optical sensors per unit and can link up to four relays in a single system. A redundant solid-state trip circuit, phase-CT inputs, USB configuration, and Modbus communication are standard. Trip coil outputs accept 24-300 V AC or DC. The unit is certified to UL, CE, CSA, RCM, FCC, DNV, and ABS standards.