ABB 1SVR730750R0400

The CM-EFS.2S voltage monitoring relay is part of the CM single-phase monitors range, offering functionality for both over- and undervoltage monitoring. This device operates effectively across a control supply voltage range of 24 to 240 V AC/DC and supports a measuring principle based on RMS for both AC and DC voltages. It includes four distinct measuring ranges: 3-30 V, 6-60 V, 30-300 V, and 60-600 V.

With configurable output contacts, the relay can be set for either 1x2 c/o (SPDT) or a dual 2x1 c/o (SPDT) operation, allowing for common or separate signals corresponding to minimum and maximum thresholds. The hysteresis value is maintained at 5% of the threshold, ensuring precise performance. Additionally, both tripping and start-up delays can be adjusted from instantaneous to a maximum of 30 seconds, providing flexibility for various applications.

Protection against unauthorized adjustments is facilitated by an optional sealable transparent cover. The CM-EFS.2S employs screw connection technology with double-chamber cage terminals, ensuring reliable connectivity. The device adheres to various international standards including CAN/CSA C22.2 No.14 and IEC/EN standards, making it suitable for a wide range of industrial environments.