DUB03 1 PHASE AC/DC OVER/UNDER VOLTAGE RELAY
DUB03 and PUB03 are precise TRMS AC/DC over or under voltage (selectable by DIP-switch) monitoring relays. Owing to the built-in latch function, the ON-position of the relay output can be maintained. Inhibit function can be used to avoid relay operation when not desired (maintenance, transitions). The LED’s indicate the state of the alarm and the output relay.