Silent solid-state relay, not potential-free, 400 watts, fallback delay with switch-off warning and push-button permanent light can be activated. Standby loss is only 0.3 watts. Designed for installation. Dimensions: 45 mm long, 45 mm wide, 18 mm deep. Supply, switching, and control voltage is 230 V. Contact switching at zero crossing. In the event of a power failure, it is defined to switch off. In the ER function, the relay switches back on when the voltage returns and the control input is active. A glow lamp current at the control input is not permitted. Equipped with automatic electronic over-temperature cut-off. For loads less than 1 W, a GLE must be connected in parallel with the load. The upper rotary switch selects the desired function of this pulse switching relay: ER = switching relay. ESV = pulse switch. Optionally with fallback delay, then +push-button permanent light = ESV with push-button permanent light. +Switch-off warning = ESV with switch-off warning. +Permanent light and switch-off warning = ESV with push-button permanent light and switch-off warning. To securely find the desired position, the LED flashes as soon as a new adjustment range is reached while turning the rotary switch. The LED remains lit when the relay is switched on. When the push-button permanent light is activated, it can be set to permanent light by pressing for more than 1 second, which is indicated by a brief flicker of the lamp. After 2 hours, the permanent light automatically switches off or can be turned off earlier by a short press. When the switch-off warning is activated, the lighting flickers about 30 seconds before the time runs out, starting and flickering a total of 3 times at decreasing intervals. During the switch-off warning, it can be extended by pressing again. If both the switch-off warning and push-button permanent light are activated, the switch-off warning occurs after the automatic switch-off of the permanent light.