B - Cyclical operation with the control contact S.
The input of the time relay is supplied with U voltage continuously. Closing of the control contact S immediately switches on the output relay R. Each next closing of the control contact S results in a change of the status of the output relay R to an opposite one (the feature of a bistable relay).
Relays performing the function "B": MT-W..., RPC-.MA-..., RPC-.MD-UNI, TR4N 1CO, 2CO, TR4N 4CO
