Eltako pulse switch with a standby consumption of only 0.1 watts. If the contact is used to control switching devices that do not switch at zero crossing, (N) should not be connected, as the additional closing delay could have the opposite effect. The simultaneous use of two potentials at the control inputs is not permitted. The switching noise is very low. No continuous power supply is required, so there is also no standby loss. State-of-the-art hybrid technology combines the advantages of wear-free electronic control with the high performance of special relays. By using a bistable relay, there is no coil loss and no heating even when switched on. The relay contact can be open or closed during commissioning and synchronizes on the first operation. The terminal connection assignment is identical.