200 Degree Gas Spillage Sensing Switch Kit with Manual Reset, 24VAC

Field Controls Thermal Safety Switch — 46111503, SWG Series, Gas Spillage Sensing Switch, 24 mVAC, 24 VA, SPST

The Field Controls 46111503 Thermal Safety Switch from the SWG Series is designed to detect and respond to flue gas spillage in gas-fired heating appliances. Operating on 24 mVAC control circuits, this single-pole, single-throw (SPST) switch provides reliable protection by shutting down the system in the event of a blocked vent or draft failure. Engineered for use with Field Controls SWG Power Vent Systems, this thermal sensing device enhances safety and ensures proper venting performance in residential and light commercial applications.

• Model number 46111503 identifies this Field Controls SWG Series Thermal Safety Switch for gas venting systems.
• Functions as a gas spillage sensing switch to detect flue gas backflow or venting failure.
• Designed for use with Field Controls SWG Power Vent Systems and compatible gas-fired appliances.
• Operates at 24 mVAC control voltage with a 24 VA power rating.
• Features a single-pole, single-throw (SPST) contact configuration for simple circuit integration.
• Thermal sensing element automatically interrupts operation when unsafe temperatures are detected.
• Compact design allows easy mounting near draft hoods or vent connections.
• Enhances appliance safety by preventing operation during blocked vent conditions or exhaust system failure.

Technical Data & Performance

• Type: Thermal safety switch (gas spillage sensing switch)
• Brand: Field Controls
• Series: SWG
• Model: 46111503
• Voltage Rating: 24 mVAC
• Power Rating: 24 VA
• Pole Configuration: Single Pole, Single Throw (SPST)
• Function: Detects flue gas spillage or draft failure and interrupts burner operation
• Connection Type: Wire terminals for standard low-voltage connections
• Mounting Type: Surface-mount near vent hood or draft inducer
• Operating Temperature: Activates when vent gases reach unsafe temperatures
• Reset Type: Manual reset required after activation
• Compatibility: For use with SWG Power Vent Systems and compatible gas-fired furnaces, boilers, and water heaters
• Material: Durable metal sensing housing with insulated terminals
• Application: Residential and light commercial gas heating equipment
• Safety Function: Shuts down system during vent blockage or improper draft to prevent carbon monoxide hazards
• Standards: Complies with applicable HVAC safety and control standards
• Maintenance: Check annually for function and wiring integrity during appliance service
• Provides dependable safety protection and automatic system shutdown in the event of gas spillage or vent failure conditions.