The CM-MPS.41S is a multifunctional relay from the CM three-phase monitor series. It operates with a nominal control supply voltage / three-phase measuring voltage of 300-500 V AC 50/60 Hz and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A.

This relay monitors all phase parameters such as over/undervoltage, phase unbalance and phase failure. The corresponding threshold values are adjustable. Phase sequence monitoring as well as the on or off delay are selectable. The on delay is adjustable in a range of instants to 30 s (0, 0.1-30 s).

A sealable transparent cover to protect against unauthorized changes is available as an accessory. The device offers screw connection technology with dual chamber cage connection terminals.

Technical specifications