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OEM Carrier Contactor 2-Pole 24V Coil for C50A306051
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C50A306051

SKU: CARRIE-C50A306051-CONTACTOR-HN53CB115 Brand: Carrier
✓ Guaranteed to fit C50A306051 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C50A306051

This is the factory-specified OEM replacement contactor for the Carrier C50A306051 commercial packaged rooftop unit. The contactor is a high-voltage relay controlled by the 24V thermostat signal — when the thermostat calls for cooling, 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 air conditioning system will not energize at all, buzz continuously, or fail to restart after shutoff. Pitted, burned, or welded contacts are telltale signs it needs immediate replacement.

  • Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for C50A306051 | Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120
  • OEM vs Generic: This OEM contactor meets Carrier's exact coil pull-in voltage and contact material specifications. Generic contactors frequently use lower-grade silver-alloy contacts that pit faster under compressor inrush current, leading to premature failure within one to two seasons.
  • Install difficulty: 3/5 — Requires shutting off power at the disconnect and breaker before beginning work. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all high-voltage wiring connections before removal. Verify coil voltage with a multimeter prior to replacement.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our fulfillment warehouse.

Compatibility: Designed for the Carrier C50A306051 commercial rooftop packaged unit. This listing covers OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — all factory-authorized replacements for this platform. Always confirm coil voltage and pole count against your unit's wiring diagram and data plate before ordering. Our HVAC parts specialists are available to verify fitment 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 C50A306051?
Yes. This is the factory-specified OEM contactor for the Carrier C50A306051. 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 C50A306051?
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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