ABB 1SVR740840R0400 Control

Description

• The ABB 1SVR740840R0400 CM-SRS.21P, a single-functional current monitoring relay designed for excellence within the CM single-phase monitors range. This relay operates seamlessly with a rated control supply voltage spanning 24 to 240 V AC / DC, setting a new standard for precision in current monitoring applications.

• Featuring a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A, the CM-SRS.21P excels with an RMS measuring principle for both DC and AC currents. Its versatility is showcased through three measuring ranges: 3-30 mA, 10-100 mA, and 0.1-1 A, ensuring compatibility with a wide spectrum of current monitoring needs. Operating according to the open-circuit principle, the CM-SRS.21P is configurable for both over- and undercurrent monitoring.