Thermostats are ideal for temperature control of Electric Geysers, Boilers, Ovens, Panel Boards, Air Handling Units etc.These are available in standard stem lengths of 7″ (157 mm) 230 volts, 11″ (275 mm) 230 Volts 18″ (457mm) 230 Volts, on the operational load of 20 amps. Also available in 110V & 415V.