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OEM Carrier Contactor 1-Pole 30A 24V Coil for PH10JA042000AAAA
Carrier

OEM Carrier Contactor 1-Pole 30A 24V Coil for PH10JA042000AAAA

SKU: CARRIE-PH10JA042000AAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH10JA042000AAAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 30A 24V Coil for Model PH10JA042000AAAA

This is the genuine OEM factory-specified contactor for the Carrier PH10JA042000AAAA. The contactor is the high-voltage switching relay that bridges line voltage to your compressor and fan motor every time the thermostat calls for cooling. When it fails, the system may refuse to start, hum without engaging, chatter loudly, or — just as dangerously — stay locked on even after the thermostat is satisfied. Burned or pitted contacts are the most common failure mode, especially in units that have logged several seasons of use.

  • Specs: 1-Pole | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 24 VAC coil voltage | 50/60 Hz | OEM Part# HN51KC024
  • OEM vs Generic: OEM contactors are built to exact Carrier factory specifications with precision contact gap tolerances. Generic alternatives often use thinner contact material that accelerates pitting and shortens service life, especially under high-cycle summer loads.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before opening the electrical compartment. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph all wiring connections before removing the old contactor. Verify 24V coil pull-in after installation.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for Carrier model PH10JA042000AAAA. Also cross-references to P282-0311 and replaces HN51CC024, P282-1304, P282-1305, and related variants. Verify your unit's data plate and wiring diagram before ordering. Our team is available to confirm fitment — just reach out 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 PH10JA042000AAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH10JA042000AAAA. 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 PH10JA042000AAAA?
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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