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OEM Carrier Contactor 1-Pole 24V 30A for PH10JA04800GABAA
Carrier

OEM Carrier Contactor 1-Pole 24V 30A for PH10JA04800GABAA

SKU: CARRIE-PH10JA04800GABAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH10JA04800GABAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole Contactor 24V 30A (HN51KC024) for Model PH10JA04800GABAA

This OEM single-pole contactor is the factory-specified replacement part for the Carrier PH10JA04800GABAA packaged heat pump unit. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes to send line voltage to the compressor and/or fan motor. When the contactor fails — through burned or pitted contacts, a welded coil, or an open coil — your system will either refuse to turn on entirely, run continuously without cycling off, or hum without the compressor starting. Replacing a worn contactor promptly prevents costly compressor damage from voltage irregularities.

  • 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 factory tolerances for the PH10JA04800GABAA. Generic contactors may use lower-grade contact materials that pit faster under load, leading to premature failure and potential compressor damage.
  • Install Difficulty: 2/5 — Shut off all power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting terminals. Verify 24V coil pull-in after installation with a thermostat call.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Verified fit for Carrier model PH10JA04800GABAA. Confirm part number HN51KC024 against your unit's wiring diagram or parts list before ordering. Need fitment help? Our HVAC parts specialists verify compatibility before you buy — contact us anytime.

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 PH10JA04800GABAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH10JA04800GABAA. 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 PH10JA04800GABAA?
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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