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OEM Carrier Contactor 1-Pole 30A 24V Coil for PH4ANG048000BAAA
Carrier

OEM Carrier Contactor 1-Pole 30A 24V Coil for PH4ANG048000BAAA

SKU: CARRIE-PH4ANG048000BAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH4ANG048000BAAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 30 Amp 24V Coil for Model PH4ANG048000BAAA — Part# HN51KC024

This is the factory-authorized OEM replacement contactor for the Carrier PH4ANG048000BAAA heat pump/condenser unit. The contactor is the high-voltage relay that receives a low-voltage (24V) signal from the thermostat and closes the circuit to energize the compressor and/or condenser fan motor. When the contactor fails — due to worn contacts, pitting, coil burnout, or welded contacts — the system will either fail to start entirely, run continuously without shutting off, or trip the breaker. A failed contactor is one of the most common causes of a no-cooling call in the field.

  • 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, manufactured to exact OEM tolerances. Generic contactors frequently use undersized contact material that pits and welds faster under load, shortening equipment life and risking compressor damage.
  • Install difficulty: 2/5 — Always disconnect and lock out power at both the outdoor disconnect and the breaker panel before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before removing the old unit. Verify 24V coil pull-in with a thermostat call after installation.
  • Warranty: 1-year OEM factory warranty. Orders ship same business day from our warehouse.

Compatibility: Factory-specified contactor for Carrier model PH4ANG048000BAAA (4-ton packaged heat pump). Verify your unit's wiring diagram and parts list confirm part number HN51KC024 before ordering. Not sure? Our HVAC parts specialists verify fitment at no charge — 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 PH4ANG048000BAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH4ANG048000BAAA. 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 PH4ANG048000BAAA?
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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