
Lennox 17F64 Contactor
The Lennox 17F64 Contactor is a heavy-duty definite purpose contactor designed for reliable power switching in residential and commercial HVAC units. Engineered with a 3-pole single-throw (3PST) configuration, this component is rated for 25 Amp inductive loads and features a 24V AC coil compatible with standard 50/60Hz control circuits. This OEM-spec part, often identified by model 104880-02, includes an integrated auxiliary contact (AUX) to provide essential feedback loops or control for secondary furnace and air conditioner components. Designed to handle a locked rotor amp (LRA) rating of 150A at 240V, it ensures stable performance during high-torque compressor startups. The screw terminal design allows for secure, low-resistance connections, making it a direct-fit solution for technicians performing field repairs on Lennox and Allied systems where precision switching and multi-pole isolation are required.
Key Benefits- Enhanced Circuit Control: Built-in auxiliary contact allows for advanced system monitoring and synchronized component activation.
- Industrial-Grade Durability: Rated for up to 600VAC, providing high dielectric strength and longevity in demanding HVACR environments.
- Reliable High-Load Switching: The 3PST design ensures simultaneous switching across three lines, ideal for three-phase motor and compressor applications.
- Standardized 24V Coil: Simplifies integration with existing low-voltage thermostat and control board wiring.
What is the purpose of the AUX contact on the Lennox 17F64?
The auxiliary contact acts as a secondary switch that changes state along with the main poles. It is typically used by the system controller to verify the contactor has pulled in or to energize low-current accessories like status lights or crankcase heaters.
Can I use this 25A contactor to replace a 20A rated part?
Yes, as long as the coil voltage (24V) and physical footprint match. In HVACR applications, upgrading to a higher ampacity rating often results in cooler operation and longer contact life, provided the physical dimensions allow for proper mounting.
Will this work on both 50Hz and 60Hz systems?
Yes, the Lennox 17F64 coil is rated for 50/60Hz, making it suitable for a wide range of international and domestic power standards.
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: $53.22
-65%$53.22
$18.63Lennox 17F64 Contactor
The Lennox 17F64 Contactor is a heavy-duty definite purpose contactor designed for reliable power switching in residential and commercial HVAC units. Engineered with a 3-pole single-throw (3PST) configuration, this component is rated for 25 Amp inductive loads and features a 24V AC coil compatible with standard 50/60Hz control circuits. This OEM-spec part, often identified by model 104880-02, includes an integrated auxiliary contact (AUX) to provide essential feedback loops or control for secondary furnace and air conditioner components. Designed to handle a locked rotor amp (LRA) rating of 150A at 240V, it ensures stable performance during high-torque compressor startups. The screw terminal design allows for secure, low-resistance connections, making it a direct-fit solution for technicians performing field repairs on Lennox and Allied systems where precision switching and multi-pole isolation are required.
Key Benefits- Enhanced Circuit Control: Built-in auxiliary contact allows for advanced system monitoring and synchronized component activation.
- Industrial-Grade Durability: Rated for up to 600VAC, providing high dielectric strength and longevity in demanding HVACR environments.
- Reliable High-Load Switching: The 3PST design ensures simultaneous switching across three lines, ideal for three-phase motor and compressor applications.
- Standardized 24V Coil: Simplifies integration with existing low-voltage thermostat and control board wiring.
What is the purpose of the AUX contact on the Lennox 17F64?
The auxiliary contact acts as a secondary switch that changes state along with the main poles. It is typically used by the system controller to verify the contactor has pulled in or to energize low-current accessories like status lights or crankcase heaters.
Can I use this 25A contactor to replace a 20A rated part?
Yes, as long as the coil voltage (24V) and physical footprint match. In HVACR applications, upgrading to a higher ampacity rating often results in cooler operation and longer contact life, provided the physical dimensions allow for proper mounting.
Will this work on both 50Hz and 60Hz systems?
Yes, the Lennox 17F64 coil is rated for 50/60Hz, making it suitable for a wide range of international and domestic power standards.
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 Lennox 17F64 Contactor is a heavy-duty definite purpose contactor designed for reliable power switching in residential and commercial HVAC units. Engineered with a 3-pole single-throw (3PST) configuration, this component is rated for 25 Amp inductive loads and features a 24V AC coil compatible with standard 50/60Hz control circuits. This OEM-spec part, often identified by model 104880-02, includes an integrated auxiliary contact (AUX) to provide essential feedback loops or control for secondary furnace and air conditioner components. Designed to handle a locked rotor amp (LRA) rating of 150A at 240V, it ensures stable performance during high-torque compressor startups. The screw terminal design allows for secure, low-resistance connections, making it a direct-fit solution for technicians performing field repairs on Lennox and Allied systems where precision switching and multi-pole isolation are required.
Key Benefits- Enhanced Circuit Control: Built-in auxiliary contact allows for advanced system monitoring and synchronized component activation.
- Industrial-Grade Durability: Rated for up to 600VAC, providing high dielectric strength and longevity in demanding HVACR environments.
- Reliable High-Load Switching: The 3PST design ensures simultaneous switching across three lines, ideal for three-phase motor and compressor applications.
- Standardized 24V Coil: Simplifies integration with existing low-voltage thermostat and control board wiring.
What is the purpose of the AUX contact on the Lennox 17F64?
The auxiliary contact acts as a secondary switch that changes state along with the main poles. It is typically used by the system controller to verify the contactor has pulled in or to energize low-current accessories like status lights or crankcase heaters.
Can I use this 25A contactor to replace a 20A rated part?
Yes, as long as the coil voltage (24V) and physical footprint match. In HVACR applications, upgrading to a higher ampacity rating often results in cooler operation and longer contact life, provided the physical dimensions allow for proper mounting.
Will this work on both 50Hz and 60Hz systems?
Yes, the Lennox 17F64 coil is rated for 50/60Hz, making it suitable for a wide range of international and domestic power standards.
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.












