Liquid expansion thermostat: 1) Applicable to electric water heaters, water boilers, electric ovens, warm air heaters, washing machines and fryers 2) Designed temperature: -30 - 350C 3) On-off temperature difference: 2 - 9C 4) Service temperature control range: 0 - 40C, 30 - 85C, 30 - 90C, 30 - 110C, 50 - 300C, 50 - 320C 5) Rated voltage and current: AC 250V, 16A 6) Centres of installing hole: 28mm, with M4 screw 7) Can be manufactured on customers requests apillary wire + Copper/SS sensor.