Wireless switching actuator (868 MHz) for flush-mounted installation, for connection via the Gateway2 (2nd generation) to a BLISS2 thermostat for controlling heating and cooling systems as well as dehumidification systems in single or multi-zone systems, 1 changeover contact for 16 A/250 V AC, contact material: AgSnO2, supply voltage: 230 V AC (50/60 Hz), max. switching capacity AC1: 3600 VA, 1-phase motor load AC3: 0.5 kW