ABB 1SVR730760R0500

The CM-SFS.22S current monitoring relay is tailored for precise over- and undercurrent monitoring in single-phase systems. It supports a control supply voltage range of 24 to 240 V AC/DC and features a selectable output configuration of either 2x 1 c/o or 1x 2 c/o, rated for 250 V / 4 A.

This device employs a RMS measuring principle for both AC and DC currents, offering three distinct measuring ranges: 0.3-1.5 A, 1-5 A, and 3-15 A. The tripping delay can be adjusted from instantaneous up to 30 seconds, allowing for flexibility in various applications. Additionally, the relay's hysteresis is fixed at 5% of the threshold value, providing reliable response characteristics.

The CM-SFS.22S supports various operating principles, including open- or closed-circuit configurations, with options for ON- or OFF-delay and latching functions. A transparent cover is available as an accessory to prevent unauthorized adjustments. With a width of 22.5 mm, height of 85.6 mm, and depth of 103.7 mm, this relay is designed for mounting on standard DIN rails, compliant with IEC 60715.