ABB 1SVR740750R0400

The CM-EFS.2P is a single-functional voltage monitoring relay that falls within the CM single-phase monitors range. It operates effectively with a rated control supply voltage spanning from 24 to 240 V AC/DC. This device is equipped with a 2 c/o (SPDT) output, with contacts rated at 250 V and 4 A, facilitating reliable performance in various applications.

This relay employs RMS measuring techniques for both DC and AC voltages, supporting four distinct measuring ranges: 3-30 V, 6-60 V, 30-300 V, and 60-600 V. It offers versatile monitoring capabilities for overvoltage and undervoltage conditions, and allows for the selection of ON- or OFF-delay settings, as well as open- or closed-circuit operating principles, with optional latching functionality.

The output contacts can be configured in two ways: as 1x2 c/o (SPDT) for a common signal, or as 2x1 c/o (SPDT) for separate signals indicating minimum and maximum thresholds. A fixed hysteresis of 5% of the threshold value ensures stable operation.

Adjustment features include a tripping delay and a start-up delay, which can be set from instantaneous up to 30 seconds. For added security, a sealable transparent cover is available as an accessory to prevent unauthorized adjustments.

Utilizing Easy Connect Technology, the device is designed for maintenance-free operation with push-in terminals, enhancing convenience during installation. The CM-EFS.2P is compliant with various standards and safety regulations, making it suitable for...