Our 230v Thermal Underfloor Heating Actuator is a simple 2 wire actuator that opens and closes individual port of your manifold as per the signal from your room thermostat calling for heat. Actuators usually are wired to a 230v wiring centre that manages your heating controls. Thermal Actuator 230v normally closed ---Compact Design ---Easy to mount ---Slim Design ---IP54 ---2 wire Config ---M30 Thread As always we hold everything in stock, with all order delivered the next working day.