Metz Connect Phase monitoring relay

The relay monitors the correct phase sequence L1-L2-L3 (clockwise) and the individual phase voltages for total failure. With correct phase sequence the logic element comes into working position, the green LED lights up. During total failure of a phase the output relay goes back into its neutral position. A separate supply voltage is not required. The monitoring relay can be operated with or without the neutral conductor. 2 change-over contacts for switch-off or signalling. Connections with lift terminals and underplugging protection. Cross-section for connection 2,5 mm². Slender construction: 22,5 mm, can be snapped onto DIN-rail.