PUA01CB23500V PUA01 voltage monitoring relay, single-phase, 2 - 500 V AC/DC

The DUA01 devices are precise overvoltage monitoring relays for single-phase AC and DC voltage. When using the MI and MP current transformers, they can also be used as overcurrent monitoring relays in single-phase and three-phase networks. The self-hold function has the advantage that the output relay remains in the energised state even after an alarm condition is over. The red LED signals the relay switching status.