ABB 1SVR730840R0700

The CM-SRS.M2S is a versatile current monitoring relay, part of the CM single-phase monitors range. This device operates under a control supply voltage ranging from 24 to 240 V AC/DC and features a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A.

It employs a RMS measuring principle for both DC and AC currents, providing three measuring ranges: 0.3-1.5 A, 1-5 A, and 3-15 A. The relay offers the flexibility to monitor overcurrent or undercurrent, with an open- or closed-circuit operating principle, including options for latching function.

The hysteresis is adjustable within a range of 3 to 30% of the threshold value. The tripping delay and start-up delay are also customizable, ranging from instantaneous to 30 seconds (0, 0.1-30 s). A transparent cover for protection against unauthorized changes is available as an accessory.

The device features screw connection technology with double-chamber cage connection terminals.