1.thermal cut off,temperature switch,thermostat,thermal sensor 2 ... water heater,electric kettle1.T1/11-BH2 thermal cut off,temperature switch,thermostat,thermal sensor,temperature protector, ... requirements)b) Open Tolerance: ±2ºC, ±3 ºC, ±4 ºC, ±5ºCc) Open & Close Tolerance: 5 ºC ... Normal Electric Strength: Not Broken within 2000V / 1 minute, No flash. 7.Normal Isolated Resistance: >100M ΩCertificates:a) ...