ABB 1SVR730840R0600

The CM-SRS.M1S current monitoring relay is suitable for a variety of applications requiring precise current measurement. It operates with a rated control supply voltage ranging from 24 to 240 V AC/DC and features a dual changeover (SPDT) output rated at 250 V and 4 A. The relay is capable of measuring both AC and DC currents using an RMS measuring principle, with three distinct measuring ranges: 3-30 mA, 10-100 mA, and 0.1-1 A.

This device allows users to select between overcurrent or undercurrent monitoring, with options for open or closed-circuit operation and a latching function. The adjustable hysteresis ranges from 3% to 30% of the threshold value, while both the tripping and start-up delays can be configured from instantaneous up to 30 seconds. For protection against unauthorized adjustments, a sealable transparent cover is available as an accessory.

The CM-SRS.M1S utilizes screw connection technology with double-chamber cage terminals, enabling robust connectivity. Its construction complies with various standards, ensuring reliability in industrial environments. The device has an IP50 housing protection class and operates effectively within an ambient temperature range of -20 to +60 °C, with a permissible operating altitude of up to 2000 meters without derating.

Compliance with regulations such as RoHS and others ensures that the CM-SRS.M1S meets environmental standards, making it a suitable choice for modern installations.