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 would have the opposite effect. The simultaneous use of two potentials at the control inputs is not permitted. Very low switching noise. No constant power supply is required, thus eliminating 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 either open or closed at startup and will synchronize during the first operation. The terminal connection layout is identical.