Designed for a furnace limit circuit

Integrated Protection: Includes a replaceable 3-amp fuse to protect the motor board and transformer from low-voltage shorts

Its compact form factor and dedicated OEM part number 42-502A guarantee a 1:1 fit

Designed with a 1-1/4" Rotolock threaded connection and a 1-1/8" ODF (Outside Diameter Flare) sweat fitting

guaranteeing a precise fit and long-lasting durability in both residential and commercial heating systems

Resideo T812C1000 Thermostat 320819-301 Designed for a furnace limitThe Resideo T812C1000 is an industrial grade mechanical thermostat designed for reliable control of conventional heating and cooling systems. Operating on a 24VAC circuit (18 30Vac range), this non programmable thermostat utilizes a snap acting bimetal switch to provide crisp, positive contact for 1H 1C stages. This professional grade control features SPST switching action and a wide setpoint range of 45F to 95F, maintaining a + 3 degree accuracy