
Carrier HH18HA130 Limit Switch
The Carrier HH18HA130 is a high-precision, OEM auto limit switch designed for critical thermal regulation within residential and light commercial HVAC systems. This disc-type temperature actuated switch features a specific operating range of 100-130°F, functioning as a primary safety mechanism to prevent heat exchanger damage and ensure efficient blower motor cycling. As a direct replacement for the HH18HA130B, this component maintains strict 1/2" NPT mounting compatibility and utilizes quick-connect terminals for secure electrical integration in furnace cabinets and air handlers.
For service technicians, the HH18HA130 serves as an essential high limit safety control, effectively mitigating risks associated with restricted airflow, clogged filters, or blower failure. Its single-pole single-throw (SPST) configuration is rated for up to 10 A at 120 VAC, providing robust switching performance across various equipment platforms. This auto-reset limit switch restores continuity once internal temperatures drop below the 100°F threshold, eliminating the need for manual intervention after temporary thermal events.
Key Benefits- Precise Thermal Calibration: Engineered to trip at 130°F and reset at 100°F to protect critical heat exchangers from expansion stress.
- Universal Compatibility: Fully identical to the HH18HA130B, ensuring seamless fitment in specified Carrier, Bryant, and Payne units.
- Robust Electrical Specs: Features industrial-grade contacts capable of handling 120V/240V HVAC control circuits.
- Safety Compliance: Acts as a reliable safeguard against flame rollout and overheating conditions caused by high static pressure.
Is the HH18HA130 a manual or auto-reset switch?
This is an auto-reset limit switch, meaning it will automatically close the circuit once the sensed temperature returns to the lower 100°F limit.
What causes this limit switch to trip frequently?
Frequent tripping is usually indicative of restricted airflow, often caused by a dirty air filter, blocked return grilles, or a failing blower motor.
Can I use a different temperature-rated switch as a substitute?
No. You must use the factory-specified temperature range of 100-130°F to maintain the safety parameters defined by the equipment manufacturer.
Item is Non Cancelable / Non Returnable
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $38.80
-65%$38.80
$13.58Carrier HH18HA130 Limit Switch
The Carrier HH18HA130 is a high-precision, OEM auto limit switch designed for critical thermal regulation within residential and light commercial HVAC systems. This disc-type temperature actuated switch features a specific operating range of 100-130°F, functioning as a primary safety mechanism to prevent heat exchanger damage and ensure efficient blower motor cycling. As a direct replacement for the HH18HA130B, this component maintains strict 1/2" NPT mounting compatibility and utilizes quick-connect terminals for secure electrical integration in furnace cabinets and air handlers.
For service technicians, the HH18HA130 serves as an essential high limit safety control, effectively mitigating risks associated with restricted airflow, clogged filters, or blower failure. Its single-pole single-throw (SPST) configuration is rated for up to 10 A at 120 VAC, providing robust switching performance across various equipment platforms. This auto-reset limit switch restores continuity once internal temperatures drop below the 100°F threshold, eliminating the need for manual intervention after temporary thermal events.
Key Benefits- Precise Thermal Calibration: Engineered to trip at 130°F and reset at 100°F to protect critical heat exchangers from expansion stress.
- Universal Compatibility: Fully identical to the HH18HA130B, ensuring seamless fitment in specified Carrier, Bryant, and Payne units.
- Robust Electrical Specs: Features industrial-grade contacts capable of handling 120V/240V HVAC control circuits.
- Safety Compliance: Acts as a reliable safeguard against flame rollout and overheating conditions caused by high static pressure.
Is the HH18HA130 a manual or auto-reset switch?
This is an auto-reset limit switch, meaning it will automatically close the circuit once the sensed temperature returns to the lower 100°F limit.
What causes this limit switch to trip frequently?
Frequent tripping is usually indicative of restricted airflow, often caused by a dirty air filter, blocked return grilles, or a failing blower motor.
Can I use a different temperature-rated switch as a substitute?
No. You must use the factory-specified temperature range of 100-130°F to maintain the safety parameters defined by the equipment manufacturer.
Item is Non Cancelable / Non Returnable
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Carrier HH18HA130 is a high-precision, OEM auto limit switch designed for critical thermal regulation within residential and light commercial HVAC systems. This disc-type temperature actuated switch features a specific operating range of 100-130°F, functioning as a primary safety mechanism to prevent heat exchanger damage and ensure efficient blower motor cycling. As a direct replacement for the HH18HA130B, this component maintains strict 1/2" NPT mounting compatibility and utilizes quick-connect terminals for secure electrical integration in furnace cabinets and air handlers.
For service technicians, the HH18HA130 serves as an essential high limit safety control, effectively mitigating risks associated with restricted airflow, clogged filters, or blower failure. Its single-pole single-throw (SPST) configuration is rated for up to 10 A at 120 VAC, providing robust switching performance across various equipment platforms. This auto-reset limit switch restores continuity once internal temperatures drop below the 100°F threshold, eliminating the need for manual intervention after temporary thermal events.
Key Benefits- Precise Thermal Calibration: Engineered to trip at 130°F and reset at 100°F to protect critical heat exchangers from expansion stress.
- Universal Compatibility: Fully identical to the HH18HA130B, ensuring seamless fitment in specified Carrier, Bryant, and Payne units.
- Robust Electrical Specs: Features industrial-grade contacts capable of handling 120V/240V HVAC control circuits.
- Safety Compliance: Acts as a reliable safeguard against flame rollout and overheating conditions caused by high static pressure.
Is the HH18HA130 a manual or auto-reset switch?
This is an auto-reset limit switch, meaning it will automatically close the circuit once the sensed temperature returns to the lower 100°F limit.
What causes this limit switch to trip frequently?
Frequent tripping is usually indicative of restricted airflow, often caused by a dirty air filter, blocked return grilles, or a failing blower motor.
Can I use a different temperature-rated switch as a substitute?
No. You must use the factory-specified temperature range of 100-130°F to maintain the safety parameters defined by the equipment manufacturer.
Item is Non Cancelable / Non Returnable
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












