Highlights of the Thermal Safety Switches
- SAFE: Detects flue gas spillage or leakage due to blocked flue
Features of the Thermal Safety Switches
Thermal Safety Switches detects the increased heat generated by the flue gas spillage and deactivates the furnace or boiler. It will not allow the burner to restart until the switch has been manually reset.
When do use a Thermal Safety Switch?
On Barometric Draft Controls and draft hoods to detect flue gas spillage and deactivate oil and gas burners.
What does a thermal safety switch do?
A thermal safety switch is an electromechanical device which opens and closes contacts to control the flow of electrical current in response to temperature change. The term “Thermal Cutoff Switch” generally refers to how the switch is used.
What is a thermal safety cut off switch?
A thermal safety cutoff is an electrical safety device that interrupts electric current when heated to a specific temperature. These devices may be for one-time use or may be reset manually or automatically.
NOTE: Most of Field Controls thermal safety switches are either SPDT (Single Pole Double Throw) or SPST (Single Pole Single Throw).
Thermal safety switches should be installed by a licensed contractor. Find a contractor in your area.
Specifications of the Thermal Safety Switches
|Model||Part Number||Load Rating||Normally Closed Switch||Switch Type||Contact Material||Application|
|WMO-1||46086900||10||120||200°F||Manual Reset||SPST||silver||Manual reset. Designed for use with power venting and chimney vented systems for oil-fired applications.|
|140°F||Manual Reset||SPST||silver||Draft Control or Draft Hood mounting Manual reset. Quicker response time than FTS-6.|
|180°F||Manual Reset||SPST||silver||Draft Control or Draft Hood mounting Manual reset. For use on 24/120/240 Volt equipment over 400,000 BTU/hr.|
|GSK-3||46086400||24||Millivolt 24 AC||180||Manual Reset||SPST||gold||Standard Gold Contact Manual Reset Switch. For gas-fired millivolt or 24 VAC application.|
|GSK-4||46086402||24||Millivolt 24 AC||200||Manual Reset||SPST||gold||Manual Reset Switch, same as GSK-3. Where slower response time is a requirement.|
|GSK-160A||46086403||24||120||160||Automatic Reset||SPST||silver||Draft induced furnaces.|
|GSK-250M||46086404||24||Millivolt 24 AC||250||Manual Reset||SPST||silver||Steam Boilers.|
|LS-550A||46564200||15||120||550||Automatic Reset||SPDT||silver||B-vent applications.|
|SSK-1||46111501||24||Millivolt 24 AC||180||Manual Reset||SPST||gold||Kit includes (2) GSK-3 switches (1) 6 ft. length of 12 GA wire and Switch Jumper Wire.|
|SSK-3||46111503||24||Millivolt 24 AC||200||Manual Reset||SPST||gold||Kit same as SSK-2 Kit, except switches not enclosed in electrical box.|
|TCA-1||46082700||Required adapter for operation of Gold Contact Thermal Safety Switches with 30 millivolt systems (residential water heaters).|
2630 Airport Road
Kinston, NC 28504