
Trane CNT4671 Limit
The Trane CNT4671 Limit Switch is a critical safety component designed for precise thermal regulation within high-performance HVAC systems. This OEM Trane replacement part operates on a Single Pole Single Throw (SPST) configuration and is Normally Closed (N/C) under standard operating conditions. Engineered specifically for high-limit protection, the 190F Autoreset Limit triggers an open circuit when temperatures exceed the safety threshold, effectively preventing heat exchanger damage or system overheating. Once the internal temperature stabilizes below the setpoint, the switch utilizes its automatic reset function to restore the electrical path, minimizing downtime for the contractor and the end user.
For technicians working on rooftop units (RTUs) or split systems, the CNT4671 ensures secondary safety integrity. It is built to withstand the rigors of frequent cycling and high-amperage draws common in commercial and residential furnaces. By utilizing an authentic Trane high limit control, you maintain the system's UL certification and ensure exact electrical compatibility without the risk of nuisance tripping or premature component failure. This part is a direct replacement for various superseded models, including X13100424030, ensuring a seamless fit for field repairs.
Key Benefits for Technicians:- Precise 190F Trip Point: Ensures rigorous thermal overhead protection to prevent system-wide damage.
- Automatic Reset Logic: Eliminates the need for manual intervention during transient overheat conditions, restoring operation efficiently.
- OEM Standards: Guaranteed physical and electrical compatibility with Trane and American Standard chassis for professional-grade reliability.
- Durable SPST Contacts: Designed to maintain low-resistance connections through thousands of operation cycles.
What causes a Trane CNT4671 to trip repeatedly?
Repeated tripping typically indicates restricted airflow across the heat exchanger, often caused by a dirty filter, failing blower motor, or obstructed ductwork. Verify static pressure and airflow volume if the limit opens frequently.
Is the CNT4671 compatibility limited to specific Trane models?
This limit control is widely used across Trane rooftop units and air handlers. Always verify the Part Number (CNT4671 or CNT04671) against the specific unit wiring diagram or lookup tool to ensure the thermal 190F rating matches the original spec.
Can I bypass this limit for testing purposes?
Technicians should only jump the limit briefly for diagnostic confirmation. Operating a system without a functional high limit is a safety hazard and can lead to permanent equipment failure or fire risk.
This item is not eligible for free shipping.
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: $122.83
-65%$122.83
$42.99Trane CNT4671 Limit
The Trane CNT4671 Limit Switch is a critical safety component designed for precise thermal regulation within high-performance HVAC systems. This OEM Trane replacement part operates on a Single Pole Single Throw (SPST) configuration and is Normally Closed (N/C) under standard operating conditions. Engineered specifically for high-limit protection, the 190F Autoreset Limit triggers an open circuit when temperatures exceed the safety threshold, effectively preventing heat exchanger damage or system overheating. Once the internal temperature stabilizes below the setpoint, the switch utilizes its automatic reset function to restore the electrical path, minimizing downtime for the contractor and the end user.
For technicians working on rooftop units (RTUs) or split systems, the CNT4671 ensures secondary safety integrity. It is built to withstand the rigors of frequent cycling and high-amperage draws common in commercial and residential furnaces. By utilizing an authentic Trane high limit control, you maintain the system's UL certification and ensure exact electrical compatibility without the risk of nuisance tripping or premature component failure. This part is a direct replacement for various superseded models, including X13100424030, ensuring a seamless fit for field repairs.
Key Benefits for Technicians:- Precise 190F Trip Point: Ensures rigorous thermal overhead protection to prevent system-wide damage.
- Automatic Reset Logic: Eliminates the need for manual intervention during transient overheat conditions, restoring operation efficiently.
- OEM Standards: Guaranteed physical and electrical compatibility with Trane and American Standard chassis for professional-grade reliability.
- Durable SPST Contacts: Designed to maintain low-resistance connections through thousands of operation cycles.
What causes a Trane CNT4671 to trip repeatedly?
Repeated tripping typically indicates restricted airflow across the heat exchanger, often caused by a dirty filter, failing blower motor, or obstructed ductwork. Verify static pressure and airflow volume if the limit opens frequently.
Is the CNT4671 compatibility limited to specific Trane models?
This limit control is widely used across Trane rooftop units and air handlers. Always verify the Part Number (CNT4671 or CNT04671) against the specific unit wiring diagram or lookup tool to ensure the thermal 190F rating matches the original spec.
Can I bypass this limit for testing purposes?
Technicians should only jump the limit briefly for diagnostic confirmation. Operating a system without a functional high limit is a safety hazard and can lead to permanent equipment failure or fire risk.
This item is not eligible for free shipping.
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 Trane CNT4671 Limit Switch is a critical safety component designed for precise thermal regulation within high-performance HVAC systems. This OEM Trane replacement part operates on a Single Pole Single Throw (SPST) configuration and is Normally Closed (N/C) under standard operating conditions. Engineered specifically for high-limit protection, the 190F Autoreset Limit triggers an open circuit when temperatures exceed the safety threshold, effectively preventing heat exchanger damage or system overheating. Once the internal temperature stabilizes below the setpoint, the switch utilizes its automatic reset function to restore the electrical path, minimizing downtime for the contractor and the end user.
For technicians working on rooftop units (RTUs) or split systems, the CNT4671 ensures secondary safety integrity. It is built to withstand the rigors of frequent cycling and high-amperage draws common in commercial and residential furnaces. By utilizing an authentic Trane high limit control, you maintain the system's UL certification and ensure exact electrical compatibility without the risk of nuisance tripping or premature component failure. This part is a direct replacement for various superseded models, including X13100424030, ensuring a seamless fit for field repairs.
Key Benefits for Technicians:- Precise 190F Trip Point: Ensures rigorous thermal overhead protection to prevent system-wide damage.
- Automatic Reset Logic: Eliminates the need for manual intervention during transient overheat conditions, restoring operation efficiently.
- OEM Standards: Guaranteed physical and electrical compatibility with Trane and American Standard chassis for professional-grade reliability.
- Durable SPST Contacts: Designed to maintain low-resistance connections through thousands of operation cycles.
What causes a Trane CNT4671 to trip repeatedly?
Repeated tripping typically indicates restricted airflow across the heat exchanger, often caused by a dirty filter, failing blower motor, or obstructed ductwork. Verify static pressure and airflow volume if the limit opens frequently.
Is the CNT4671 compatibility limited to specific Trane models?
This limit control is widely used across Trane rooftop units and air handlers. Always verify the Part Number (CNT4671 or CNT04671) against the specific unit wiring diagram or lookup tool to ensure the thermal 190F rating matches the original spec.
Can I bypass this limit for testing purposes?
Technicians should only jump the limit briefly for diagnostic confirmation. Operating a system without a functional high limit is a safety hazard and can lead to permanent equipment failure or fire risk.
This item is not eligible for free shipping.
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.












