Fan and Limit Control, Application Fan and Limit Control, Mounting Plenum Mount, Contact Form SPDT, Switch Action Fan - Close on Rise, Limit - Open on Rise, Reset Type Automatic Reset, Fan Minimum Control Temperature 65 Degrees F, Fan Maximum Control Temperature 215 Degrees F, Limit Maximum Control Temperature 250 Degrees F, Limit Minimum Control Temperature 100 Degrees F, Differential Adjustability Fixed, Maximum Temperature Differential Setting 25 Degrees F, Input Voltage 120V AC, 240V AC