Monitoring Relays

7UG0818-1CA20, Digital Line monitoring relay 3-phase 3-wire or 3-phase 4-wire 2 changeover 280-520 V AC (L-L) 160-300 V AC (L-N) self powered 35 mm module

Monitoring Relay, THIN PHSE SEQUENCE LOSS

Monitoring relay 17.5mm wide, simultanious monitoring of phase sequence and loss in 3phase 3wire systems, One SPDT