Est - ON delay with closing of the control contact S, with the interval T1 extended.
The input of the time relay is supplied with voltage U continuously. Closing of the control contact S starts the interval T, and after the interval T has lapsed, the output relay R switches on and remains in this position until the control contact S is closed again or until the supply voltage U is interrupted. Closing of the control contact S resets the thus far measured time and starts the new interval T.
Relays performing the function "Est": MT-W..., RPC-.MB-...
