Logic gate D1100 series

The D1100 series diode logic unit is an optional accessory for the Littelfuse arc-flash relays. It is used for tripping one circuit breaker with multiple arc-flash relays. Its purpose is to separate the trip paths so the breakers can be tripped independently from each other. This unit provides a 5 V dc signal from the relay to the appropriate controller. The D1100 diode logic unit and arc-flash relays provide superior protection against the damaging effects of arc flashes and improve the lifespan of electrical equipment as well as the protection of personnel.