Eltako 61100301 TDR Flush mount, Recess-mount 230 V

No coil-power loss and heat generation in a switched state through the use of a bi-stable relay. The contact switching takes place to protect the contacts and devices in the zero crossing. A switch-off warning and a continuous button-light can be switched on/off. Time setting is possible from 1 to 12 minutes.

Price: 47.99 from Conrad Electronic