Carrier HN51KC024 1-Pole 24V 30A Contactor is an OEM contactor for Carrier equipment, used to switch single-pole loads in HVAC systems with a 24-volt control circuit.
Key Features:
Configuration 1-pole contactor
Coil voltage 24 VAC
Rated load 30 amps
Factory part number HN51KC024
Compatibility & Applications:
For Carrier systems that list HN51KC024 in the official parts list.
Commonly used to switch compressors, fan motors, or electric heat stages per unit design.
Installation & Operation Notes:
Disconnect power. Follow the unit wiring diagram for line and load connections and coil leads.
Mount securely in the control compartment and verify contactor pull-in with a 24-V call.
Maintenance & Troubleshooting:
Inspect contacts for pitting and check coil resistance per service literature. Replace if contacts are burned or coil is open.
Was able to install after reading multiple schematics and watching a few videos. The item was not a perfect match to OEM equipment, and worked flawlessly after installation, but installation was not a breeze. The low voltage connections on the new part are on both sides of contactor versus on one side on the old part. More instructions would be useful advising on the low voltage wiring connections.
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Most Liked Negative Review
Defective part.
I loved how the shipping was fast (next day) I had a tech come out to fix my ac unit and he had informed me that this part I had just bought was bad. He ended up putting a new one he had on and my ac finally worked again.
Showing 1-10 of 30 reviews
I would buy this product again and again
These are very dependable contactors and have held up for many years, I replace them precautionary at 15 years and the ones I remove are still in decent shape
Bill J
Niles, Illinnois
1 months ago
Verified Buyer
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Insurance
I've purchased several items such as this from Supply House just in case. If you've been without heat in the winter or without AC in the summer, paying for this "just in case" is worth it. And Supply House has the best prices!
Chuck
Decatur, AL
2 years ago
Verified Buyer
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Part was right because Supply House insured it was!
Supply House has been my go to source for 5 plus years. As manufacturers move around production and change part numbers constantly, it is sometimes hard to keep up and ensure you are ordering the right part (which makes my business more effective and efficient). Supply House has always delivered the right quality or OEM part.
Philly hamndy man
Falls Township PA
2 years ago
Verified Buyer
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Perfect service. Oem Contactor! (CARRIER)
Impressive. Fast shipping, well packaged. OEM part. Worked perfectly. Thank you Supply House!
George
California
2 years ago
Verified Buyer
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YES, I will be using SupplyHouse for my electronics repair
1 pole 24V 30 AMP Contactor, Perfect fit, works great, I have no issues with wiring it up, I saved a lot of money by doing this myself, I want to thank the people at supply house for the job they do in making it easier for people like me to be able to get parts to get the job done by saving money on the parts that I've needed to fix my A/C
Thedarrellavery
Gray Court, S.C.
4 years ago
Verified Buyer
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Defective part.
I loved how the shipping was fast (next day) I had a tech come out to fix my ac unit and he had informed me that this part I had just bought was bad. He ended up putting a new one he had on and my ac finally worked again.
Lindsay
Indiana
4 years ago
Verified Buyer
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Matched my previous part
Easy swap for older part. A little expensive but Supply House has become my go to place for parts. Also knowing I can ask them technical question to get the right part.
DRZ400SY
Tall Timbers, MD
4 years ago
Verified Buyer
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Good Quality
Worked as advertised
Scotty B
Iowa
4 years ago
Verified Buyer
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Great price, quick ship
Exact part needed, easy to find, delivered as promised.
Rob S
Pelham ny
5 years ago
Verified Buyer
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Contactor works great - Restored AC Unit
SupplyHouse shipped this part right away! It was the exact replacement and restored the AC Unit back into service!!
Q: Is this contactor made by Carrier and where is it manufactured?
Asked by Clarkie 10 years ago
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Verified Reply- Supplyhouse Staff
It is a Carrier OEM part, we do not know which company actually makes them or where they are made.
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Q: Can this contractor be used in Carrier air conditioner model 38TXA036?
Asked by Bob 14 years ago
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Verified Reply- PexSupply Staff
You would need to use either this contactor or part HN51KB024. It depends on the full model number of your unit.
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