Protech 47-25350-09 Auto Reset Limit Switch A complete line of oem and factory replacement parts for your furnace; air conditioner; water heater Technical data tod switch series: 36t category: general purpose reset mode 1 switch Type: spst contact orientation 15/10 open temperature (F): 190 tolerance open temperature (F): +/-7 close temperature (F): 170 nominal temperature difference (F) 20 disc face: enclosed mounting: board mount - 90 degree strap angle mounting board