DPB51CM44 DPB51 voltage monitoring relay, triple-phase, 208 - 480 V AC

DPB51 is a three-phase multi-function mains monitoring relay. It can be operated on both the 3P and 3P+N mains and, in addition to the phase failure and the correct phase sequence, detects possible overvoltages and undervoltages. The supply voltage for the monitoring relays is supplied via the monitored mains. An alarm time lag of up to 30 seconds can be set for the overvoltage/undervoltage alarms. It features a space-saving design for DIN rail or wall mounting.