89AR30 ABB GKWN000326R0100 Relay unit

Description:

The module contains prototype-tested relays *)with posi.tively driven contacts. The contacts of relays Ki, k2, k3 aregrouped in two circuits and are wired in 2-out-of-3 orderaccording to the open-circuit principle (external jumpers B18- B20).
Auxiliary contacts can be used to interrogate the individualrelay positions.
Relays K4, K5, and K6 are freely available. K4 may be used forinstance for the emergency trip pushbutton of a certain protec.tion circuit either based on the closed-circuit or the open.circuit principle. In that case, the required jumpers need to bepositioned on the edge connector.