Please be advised that the relay in question has been replaced by a relay circuit.
This relay is responsible for the day/night switching functionality within the Viessmann heating control unit GZ/WS.
The circuit is designed for 24 VDC.
The contacts are designed for 8A continuous current and a power of 2kVA/150W. The relay is pin-compatible with the KACO relay and has the same size. The replacement of this relay has often been used successfully in practice. If you encounter any issues when replacing the relay, please contact your local specialist or send us the control unit. We will then perform the replacement for you.