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OEM Carrier Contactor 1-Pole 30A 24V for PH15NB01800GBAAA — HN51KC024
Carrier

OEM Carrier Contactor 1-Pole 30A 24V for PH15NB01800GBAAA — HN51KC024

SKU: CARRIE-PH15NB01800GBAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit HN51KC024 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 1-Pole 30A 24V for Model PH15NB01800GBAAA (HN51KC024)

This is the factory-authorized OEM replacement contactor for the Carrier PH15NB01800GBAAA heat pump system. The contactor is the high-voltage switching relay that energizes your compressor and condenser fan motor every time the thermostat calls for cooling or heating. When the 24V control circuit closes, the contactor pulls in and delivers line voltage to the load. When it fails — due to pitted or welded contacts, a burned coil, or excessive chattering — your system will either refuse to start, run continuously without shutting off, or hum without pulling the compressor online.

  • Specs: 1-Pole configuration | 24 VAC coil voltage | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 50/60 Hz | Factory OEM part number HN51KC024
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part, engineered to exact specifications for the PH15NB01800GBAAA. Generic aftermarket contactors often use thinner contact materials that arc and pit faster, reducing service life and risking compressor damage from voltage drop at the contacts.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker panel before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph existing wiring before disconnecting terminals. Verify contactor pull-in with a 24V thermostat call after installation.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Confirmed for Carrier model PH15NB01800GBAAA. Also used across a wide range of Carrier, Bryant, Payne, and related ICP-family units that specify part number HN51KC024. Always verify the part number against your unit's wiring diagram or data plate before ordering. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions.

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 PH15NB01800GBAAA — HN51KC024?
Yes. This is the factory-specified OEM contactor for the Carrier PH15NB01800GBAAA — HN51KC024. 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 PH15NB01800GBAAA — HN51KC024?
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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