ABB CM-PVE Phase monitoring relay 1n/o, L1,2,3=320-460VAC 1SVR550871R9500The CM PVE relay is from the CM three phase monitors range. This relay operates with a rated control supply voltage three phase measuring voltage of 320 460 V AC and has a 1 n o output (closed circuit principle) with contacts rated at 250 V 4 A. The CM PVE monitors the phase loss, overvoltage and undervoltage. The corresponding threshold values are fixed. The relay is suitable for monitoring of three phase mains. Specifications Ordering Minimum Order