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OEM Carrier Contactor 1-Pole 24V 30A for PH3ANA024000BAAA
Carrier

OEM Carrier Contactor 1-Pole 24V 30A for PH3ANA024000BAAA

SKU: CARRIE-PH3ANA024000BAAA-CONTACTOR-HN51KC024 Brand: Carrier
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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 1P 24V 30A (HN51KC024) for Model PH3ANA024000BAAA

This OEM Carrier contactor (part# HN51KC024) is the factory-specified high-voltage switching relay for the Carrier PH3ANA024000BAAA packaged unit. The contactor acts as the primary power switch between your 24V control circuit and the high-voltage compressor and fan motor loads — when the thermostat calls for cooling, the 24V coil energizes and closes the contacts to power the system. When the contactor fails, symptoms include the outdoor unit not starting at all, the compressor humming but not running, contacts welded shut causing the unit to run continuously, or a visibly burnt/pitted contact surface on inspection.

  • Specs: 1-Pole configuration | 24 VAC coil voltage | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 50/60 Hz | OEM part# HN51KC024
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part, engineered to exact Carrier specifications for the PH3ANA024000BAAA. Generic contactors may carry looser tolerances on coil pull-in voltage and contact gap, increasing the risk of premature failure, nuisance lockouts, or welded contacts under high-cycle summer loads.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Match line, load, and 24V coil terminals to your unit's wiring diagram. Verify contactor pull-in by restoring a 24V thermostat call after installation.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Factory-matched for Carrier model PH3ANA024000BAAA. Also cross-references part numbers HN51CC024, P282-0311, P282-1304, P282-1305, and 0351802X67. Always confirm your unit's data plate and parts list before ordering. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you buy.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $99
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier PH3ANA024000BAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH3ANA024000BAAA. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the contactor on my Carrier PH3ANA024000BAAA?
Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.
My AC clicks but the compressor won’t turn on. What’s wrong?
Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.
Is this contactor compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier contactor?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
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