1.T1/11-D43 snap action thermostat,thermal cutout,heater thermostat 2.Electrical Ratings:AC250V125V:5A,10A,15A,16A T1/11-D43 ... ) 4.Open Tolerance: ±2ºC, ±3 ºC, ±4 ºC, ±5ºC 5.Open & Close Tolerance: 5 ºC -60 ºC6.Close Tolerance: ±2ºC, ±3 ºC ... , ±4 ºC, ±5ºC, ±10 ºC ...