Littelfuse, Inc. Protection Relays & Systems D0900.0010

The D0900.0010 is an arc-flash relay designed for monitoring arc-flash events in electrical systems using optical sensors. It operates on 220-250 Vac and features a thyristor output rated for 250 Vac/Vdc, 8 A continuous, and 25 A for 0.1 seconds with a minimum load of 50 mA. The relay supports up to 16 light sensors via optional junction boxes, with a response time of less than 1 ms. Sensitivity is adjustable between 2,000 and 24,000 lux. Power consumption is 3.5 W. The device is certified to EN50081-1/2 and EN50082-1/2 for EMC. It measures 90 mm high, 105 mm wide, and 75 mm deep, and operates in ambient temperatures from -25°C to +70°C.