Lennox 43W56 Contactor Replacement Kit
The Lennox 43W56 Contactor Replacement Kit is a critical service component designed for high-amperage HVACR applications. This kit features a three-pole magnetic contactor rated for 40 FLA (Full Load Amps) and 50 RES, specifically engineered to handle the inductive loads of heavy-duty compressors and fan motors. Operating with a 24V coil, this contactor ensures reliable circuit closure and consistent electrical conductivity within commercial and residential Lennox units. When troubleshooting chattering contacts or pitted surfaces that lead to voltage drops, this OEM Lennox replacement part provides the exact physical footprint and electrical tolerances required for a direct installation. Utilizing silver cadmium oxide contacts, the 43W56 minimizes arcing and heat buildup, extending the service life of the control circuit. Whether you are performing a seasonal overhaul or reactive maintenance, this kit maintains the integrity of the line voltage connections and protects the system from premature motor failure due to single-phasing or contact welding.
- High Ampacity Rating: Rated for 40 FLA/50 RES to support demanding compressor start-up loads.
- Precision 24V Coil: Ensures stable pull-in voltage and prevents contact bounce in low-voltage control circuits.
- Three-Pole Configuration: Provides simultaneous switching for three-phase power distribution.
- Durable Construction: Heavy-duty lugs and terminal blocks facilitate secure, vibration-resistant wiring.
Common HVACR Technical Questions
What are the symptoms of a failing 43W56 contactor? Typical signs include audible humming from the coil, visible pitting or carbon deposits on the contact surfaces, or the compressor failing to engage despite receiving a call for cooling from the HVAC control board.
Can this kit replace 30 FLA contactors? Yes, the Lennox 43W56 can be used as an upgrade for lower amperage three-pole contactors provided the coil voltage matches and physical mounting space allows.
Is this contactor compatible with non-Lennox equipment? While designed as a Lennox 43W56 replacement, it functions as a universal 3-pole 40 amp 24V contactor suitable for various air conditioning and refrigeration brands requiring these specific electrical ratings.
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.
Lennox 43W56 Contactor Replacement Kit
The Lennox 43W56 Contactor Replacement Kit is a critical service component designed for high-amperage HVACR applications. This kit features a three-pole magnetic contactor rated for 40 FLA (Full Load Amps) and 50 RES, specifically engineered to handle the inductive loads of heavy-duty compressors and fan motors. Operating with a 24V coil, this contactor ensures reliable circuit closure and consistent electrical conductivity within commercial and residential Lennox units. When troubleshooting chattering contacts or pitted surfaces that lead to voltage drops, this OEM Lennox replacement part provides the exact physical footprint and electrical tolerances required for a direct installation. Utilizing silver cadmium oxide contacts, the 43W56 minimizes arcing and heat buildup, extending the service life of the control circuit. Whether you are performing a seasonal overhaul or reactive maintenance, this kit maintains the integrity of the line voltage connections and protects the system from premature motor failure due to single-phasing or contact welding.
- High Ampacity Rating: Rated for 40 FLA/50 RES to support demanding compressor start-up loads.
- Precision 24V Coil: Ensures stable pull-in voltage and prevents contact bounce in low-voltage control circuits.
- Three-Pole Configuration: Provides simultaneous switching for three-phase power distribution.
- Durable Construction: Heavy-duty lugs and terminal blocks facilitate secure, vibration-resistant wiring.
Common HVACR Technical Questions
What are the symptoms of a failing 43W56 contactor? Typical signs include audible humming from the coil, visible pitting or carbon deposits on the contact surfaces, or the compressor failing to engage despite receiving a call for cooling from the HVAC control board.
Can this kit replace 30 FLA contactors? Yes, the Lennox 43W56 can be used as an upgrade for lower amperage three-pole contactors provided the coil voltage matches and physical mounting space allows.
Is this contactor compatible with non-Lennox equipment? While designed as a Lennox 43W56 replacement, it functions as a universal 3-pole 40 amp 24V contactor suitable for various air conditioning and refrigeration brands requiring these specific electrical ratings.
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.
Product Information
Product Information
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Shipping & Returns
Description
The Lennox 43W56 Contactor Replacement Kit is a critical service component designed for high-amperage HVACR applications. This kit features a three-pole magnetic contactor rated for 40 FLA (Full Load Amps) and 50 RES, specifically engineered to handle the inductive loads of heavy-duty compressors and fan motors. Operating with a 24V coil, this contactor ensures reliable circuit closure and consistent electrical conductivity within commercial and residential Lennox units. When troubleshooting chattering contacts or pitted surfaces that lead to voltage drops, this OEM Lennox replacement part provides the exact physical footprint and electrical tolerances required for a direct installation. Utilizing silver cadmium oxide contacts, the 43W56 minimizes arcing and heat buildup, extending the service life of the control circuit. Whether you are performing a seasonal overhaul or reactive maintenance, this kit maintains the integrity of the line voltage connections and protects the system from premature motor failure due to single-phasing or contact welding.
- High Ampacity Rating: Rated for 40 FLA/50 RES to support demanding compressor start-up loads.
- Precision 24V Coil: Ensures stable pull-in voltage and prevents contact bounce in low-voltage control circuits.
- Three-Pole Configuration: Provides simultaneous switching for three-phase power distribution.
- Durable Construction: Heavy-duty lugs and terminal blocks facilitate secure, vibration-resistant wiring.
Common HVACR Technical Questions
What are the symptoms of a failing 43W56 contactor? Typical signs include audible humming from the coil, visible pitting or carbon deposits on the contact surfaces, or the compressor failing to engage despite receiving a call for cooling from the HVAC control board.
Can this kit replace 30 FLA contactors? Yes, the Lennox 43W56 can be used as an upgrade for lower amperage three-pole contactors provided the coil voltage matches and physical mounting space allows.
Is this contactor compatible with non-Lennox equipment? While designed as a Lennox 43W56 replacement, it functions as a universal 3-pole 40 amp 24V contactor suitable for various air conditioning and refrigeration brands requiring these specific electrical ratings.
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.
