General
Type of electric connection	Screw connection
Min. adjustable delay-on energization time	150
Min. adjustable off-delay time	150
Max. permitted off-delay time	150
Number of contacts as normally closed contact	1
Number of contacts as normally open contact	1
Number of contacts as change-over contact	1
Width	22.5
Height	78
Depth	78.5
Rated switch current	4
Voltage type (operating voltage)	AC
Voltage type of supply voltage	AC
With detachable clamps
Phase sequence monitoring
Phase failure detection
Function under voltage detection
Function over voltage detection
Phase imbalance monitoring
External power supply required

The CM series three-phase monitoring relays can ensure reliable and continuous monitoring of a three-phase network and the trouble-free and economical operation of machines and systems. This is why the CM series three-phase monitoring relays monitor the phase voltages, the phase sequence, the phase asymmetry, the presence of all phases and the neutral conductor as required.