Time relays are used for time control in industrial and home automation systems (e.g. ventilation, heating, lighting, signaling, etc.). Until the relay is switched on, the contact remains in position 11-10. After supplying the supply voltage, the contact is switched to position 11-12 and the set working time is measured. After the time has elapsed, the contact returns to position 11-10. Reactivation of the relay operating mode is possible after disconnecting the supply voltage and switching it on again.