ABB CM-ESS.MS Voltage Monitoring Relay - 3-600V AC/DC, Compact Design, Versatile & Reliable - 1SVR730830R0500

The ABB CM-ESS.MS Voltage Monitoring Relay, model 1SVR730830R0500, is engineered to deliver exceptional performance in maintaining the stability and safety of electrical systems. With a wide monitoring range of 3-600V AC/DC, this relay is adaptable for a variety of applications, ensuring it meets diverse operational needs. It operates on a 24-240V AC/DC power supply, providing flexibility across different power configurations. Its compact design, with dimensions of 0.9 inches in height, 3.35 inches in width, and 4 inches in depth, and a lightweight of just 5.28 ounces, allows for easy installation even in confined spaces. This relay is particularly suited for industrial environments, offering reliable voltage threshold monitoring to protect equipment from potential voltage irregularities. The CM-ESS.MS features a multifunctional design with a 2 c/o (SPDT) output, rated at 250 V / 4 A, and utilizes an RMS measuring principle for both DC and AC voltages. It supports four measuring ranges: 3-30 V, 6-60 V, 30-300 V, and 60-600 V, and provides options for over- or undervoltage monitoring, open- or closed-circuit operation, and an optional latching function. The hysteresis can be adjusted between 3 to 30% of the threshold value, while the tripping and start-up delays are adjustable from instantaneous to 30 seconds. For added security, a sealable transparent cover is available to prevent unauthorized adjustments. The device is equipped with screw connection technology featuring double-chamber cage connection terminals, ensuring secure and efficient wiring.