Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Contactor 1-Pole 30A 24V for PH16NA03600GBBAA
Carrier

OEM Carrier Contactor 1-Pole 30A 24V for PH16NA03600GBBAA

SKU: CARRIE-PH16NA03600GBBAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH16NA03600GBBAA — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 30A 24V Coil — HN51KC024 for Model PH16NA03600GBBAA

This OEM single-pole contactor is the factory-specified replacement part HN51KC024 for the Carrier PH16NA03600GBBAA heat pump condensing unit. The contactor acts as a high-voltage relay controlled by your 24V thermostat signal — when a cooling call is made, the contactor closes and delivers line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an AC or heat pump system won't start, hums without running, stays on after shutdown, or trips a breaker. Inspect contacts for pitting, burning, or welding, and replace immediately if any of these symptoms are present.

  • Specs: 1-Pole | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 24 VAC Coil Voltage | 50/60 Hz | Screw terminal connections | R-410A system compatible
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part (HN51KC024), engineered to exact contact gap tolerances, coil impedance, and thermal ratings. Generic aftermarket contactors often use lower-grade silver alloy contacts that pit and weld faster under compressor start loads — especially on systems above 3 tons.
  • Install difficulty: 2/5 — Always disconnect all power at the disconnect box before opening the control compartment. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before removal. Verify 24V coil pull-in after installation with a thermostat cooling call.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Factory-specified for the Carrier PH16NA03600GBBAA single-stage heat pump condensing unit. Also cross-references to P282-0311, HN51CC024, P282-1304, P282-1305, 301362-101, and 301323-101. Always verify the part number against your unit's wiring diagram and data plate before ordering. Our fitment team is available to 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 PH16NA03600GBBAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH16NA03600GBBAA. 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 PH16NA03600GBBAA?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online