Nordyne 626343R SPST Rollout Switch M/R 300°F

The Nordyne 626343R SPST Manual Reset Rollout Switch 300°F is a necessary safety element of HVAC Systems to verify the flame rollout and prevent unsafe heating conditions. This switch operates by cutting its circuit when the temperature exceeds the set limit, and then it must be reset manually before normal operation can resume. It is commonly installed in commercial and residential furnaces and boilers and is a vital part of the system concept in that it regulates thermal safety, assists in the controlled work of the system, and provides the proper conditions in the heating cycles.