ABB CM-MPS.43 Three-Phase Monitoring Relay CM-MPS.43

The ABB CM-MPS.43 Three-Phase Monitoring Relay protects motor circuits by monitoring phase sequence, phase loss, and phase asymmetry on 3-phase power networks. It runs from a 3-phase 200–500 VAC control supply at 50/60 Hz and offers a SPDT relay output rated 250 VAC / 5 A for fault signaling and interlocking. Mounting options include DIN rail or panel, and it comes in an industrial-rated enclosure designed for motor control centers, pump and compressor skids, conveyors, HVAC panels, and other industrial power-distribution applications. The unit automatically resets after fault clearance, and its alternate part number is CMMPS.43. Common replacements listed are ABB CM-MPS.41, ABB CM-PVS.41, and Schneider Electric RM35TF30.