The Gira System 3000 relay switching insert is suitable for switching lighting and single-phase motors as well as controlling electric underfloor heating and thermal actuators in combination with a room temperature controller attachment. The insert has an adaptive zero point switching. Connection of extensions possible, automatic switching off of the load. Follow-up times can be set in five stages (without, 1 min, 5 min, 30 min, 60 min), cannot be retriggered. Test operation for functional testing and operation with neutral conductor connection possible. The nominal voltage is AC 230 V, 50/60 Hz, the stand-by power consumption is 0.1 to 0.5 W, the ohmic switching current is 16 A (AC1). The maximum connected load at 35 °C is for HV LED lamps: typ. 400 W, compact fluorescent lamp: typ. 500 W, incandescent lamps: 2300 W, HV halogen: 2300 W, Tronic transformers: 1500 W, wound transformer: 1000 VA, fluorescent lamps, uncompensated: 1200 VA. Switching current motors: 6 A, capacitive load: 920 VA (115 µF). The relay switching insert is installed in a device box according to DIN 49073.