Watlow High Limit Control

This FM approved limit control is operated using a separate thermocouple. Mechanical relays (not included) break power to the elements when tripped. A High Limit Control gives added assurance at a small cost that the furnace and materials fired do not exceed the temperature indicated.

This item is the replacement controller for an existing furnace. It should not be used in place of another controller, or in a furnace that did not originally use this same controller. Controller only- does not include relays thermocouple, wiring, etc.