Specifications

Product Type

Three - Phase Monitoring Relay

Brand

ABB

Series

CM-MPS

Function Phase sequence, phase failure, overvoltage, undervoltage and phase unbalance monitoring; phase sequence monitoring switchable	Rated Control Supply Voltage (Us) 3 x 160 to 300 V AC	Rated Insulation Voltage (Ui) 600 V (input/output); 300 V (between output circuits)
Rated Operational Voltage (Ue) 250 V	Rated Operational Current AC-15 (Ie) 3:00 AM	Timing Range Start-up: 200 ms; tripping: 0 s or 0.1 to 30 s
Measuring Range Overvoltage: 3 x 220 to 300 V AC; undervoltage: 3 x 160 to 230 V AC; phase unbalance: 2 to 25 % of average phase voltages	Rated Frequency 50/60 Hz	Terminal Type Screw terminals
Rated Operational Current AC-12 (Ie) 4:00 AM	Rated Operational Current DC-12 (Ie) 4:00 AM	Rated Operational Current DC-13 (Ie) 2:00 AM
Minimum Switching Capacity 24 V / 10 mA	Output 2 c/o (SPDT) contacts	Short-Circuit Protective Devices 6 A fast-acting (n/c contact); 10 A fast-acting (n/o contact)
Electrical Life 100000 cycle

Conductor Cross Section Flexible

1 x 0.5 to 2.5 mm²; 2 x 0.5 to 1.5 mm²

Conductor Cross Section Solid Core

1 x 0.5 to 4 mm²; 2 x 0.5 to 2.5 mm²

Housing Material

UL 94 V-0

Depth 103.7 mm	Height 85.6 mm	Weight 0.142 kg
Width 22.5 mm

Storage Temperature

-40 to 85 °C

Operating Temperature

-25 to 60 °C

IP Rating

IP50 (housing); IP20 (terminals)

Standards and Approvals

IEC/EN 60947-5-1; IEC/EN 60255-27; EN 50178; cULus E140448; CCC; DNV GL; CE; UKCA; RCM; CMIM

ABB CM-MPS.31S Three-Phase Monitoring Relay 3 160-300VAC (L-L) 160-300VAC 2CO SPDT 4A