ABB 1SVR630736R1300 CM-UFS.2 Monitor Relay

The ABB 1SVR630736R1300 CM-UFS.2 is a three-phase monitoring relay designed for grid feeding in electrical installations, part of ABB’s 1SVR monitor-relay family (the lineage traces to ASEA BROWN BOVERI). It accepts a measuring/control supply voltage of 3 × 400 V AC (L-L) / 230 V AC (L-N) and weighs 0.14 kg per unit. The CM-UFS.2 performs grid-feeding monitoring by tracking overvoltage, undervoltage, and changes in grid frequency, providing signaling for protective circuits or interlock logic in three-phase mains. The device carries the order code 1SVR630736R1300 and features no neutral monitoring. Typical applications include monitoring the supply to three-phase feeders in switchgear or control panels where generation sources tie into the grid and require timely detection of abnormal conditions before energizing or continuing to feed the network.