Wst - ON for the set interval by closing the control contact S, with extension of the interval T - extension of the time of switching on the output relay R.
The input of the time relay is supplied with voltage U continuously. Closing of the control contact S immediately switches the output relay R on for the set interval T. After the interval T has lapsed, the output relay R is switched off. The next closing of the control contact S immediately switches on the output relay R for the interval T. In case the control contact S is closed within the interval T, the measured time is cancelled, and the interval T starts again.
Relays performing the function "Wst": RPC-.MB-...
