ABB CM-MPS.43 Three-phase Monitoring Relay CMMPS.43

Description:

The ABB CM-MPS.43 three-phase monitoring relay is used in electrical control and motor protection systems to monitor phase sequence, phase loss, and voltage conditions in three-phase power networks. Commonly installed in motor control centers, pump and compressor skids, conveyor systems, and industrial power distribution panels. Maintenance teams and system integrators use this relay for equipment protection, control panel retrofits, system repairs, and replacement of failed phase monitoring devices.

Applications:

The ABB CM-MPS.43 is commonly used in three-phase motor protection circuits, pump and compressor systems, conveyor drives, HVAC electrical panels, and manufacturing automation power distribution where accurate phase monitoring and early detection of electrical faults are critical to prevent equipment damage and unplanned downtime.

Technical Specifications:

• Manufacturer: ABB
• Model / Part Number: CM-MPS.43
• Alternate Part Number: CMMPS.43
• Product Type: Three-Phase Monitoring Relay
• Function: Phase sequence, phase loss, and phase asymmetry monitoring
• Rated Control Supply Voltage: 3-phase 200–500 VAC (typical industrial range)
• Frequency: 50/60 Hz
• Output Type: Relay output (SPDT)
• Contact Rating: 250 VAC / 5 A
• Response Time: Fast detection of phase faults
• Reset Mode: Automatic reset after fault clearance
• Mounting Type: DIN rail or panel mount
• Housing: Industrial-rated enclosure
• Application Environment: Motor control centers and industrial electrical systems

Common Replacements:

• ABB CM-MPS.41 Phase Monitoring Relay
• ABB CM-PVS.41 Voltage/Phase Monitoring Relay
• Schneider Electric RM35TF30 Phase Monitoring Relay