ABB 1SVR740760R0400 Single-Functional Current Monitoring Relay

Description

• The ABB 1SVR740760R0400 CM-SFS.21P is a single-functional current monitoring relay, belonging to the CM single-phase monitors range. It is designed for precise monitoring of electrical currents, operating with a rated control supply voltage spanning from 24 to 240 V AC/DC. This relay incorporates a 2 c/o (SPDT) output with contacts rated at 250 V and 4 A, making it suitable for a wide range of current monitoring applications.

• A standout feature of the CM-SFS.21P is its utilization of the RMS (Root Mean Square) measuring principle, enabling it to accurately monitor both DC and AC currents. It offers three selectable measuring ranges, accommodating various current levels: 3-30 mA, 10-100 mA, and 0.1-1 A. This versatility makes it a suitable solution for different current monitoring tasks.

• The relay provides comprehensive current monitoring capabilities, including window monitoring for overcurrent and undercurrent conditions. Users can choose between ON- or OFF-delay for the relay's response to current variations, allowing for flexibility in adapting to specific application requirements. Additionally, the relay supports both open- and closed-circuit operating principles and can be configured with or without a latching function.