... when temperature limit has been exceeded.thermostat,dual thermometer,thermostatic,stego thermostat,thermal controller,bimetal thermostat,Thermostat KT 011.Technical Data Switch temperature ... DIN rail, EN50022 (or for exit filter EF 118 Series)Casingplastic according to UL94 V-0, light greyDimensions60 x 33 ... 9-000 to +6001146.9-0001147.9-00 KT011/KTS011 thermostat ,bimetal thermostat, room thermostat