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 2-Pole 24V Coil for C50A505012
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C50A505012

SKU: CARRIE-C50A505012-CONTACTOR-HN53CB115 Brand: Carrier

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C50A505012

This OEM contactor is the factory-specified replacement for the Carrier C50A505012 packaged unit. The contactor acts as a high-voltage relay, using a 24V signal from the thermostat to close the circuit and deliver line voltage to the compressor and condenser fan motor. When it fails — due to burned or pitted contacts — the system will hum without starting, fail to respond to a cooling call, or trip the breaker repeatedly.

  • Specs: 2-pole configuration | 24V AC coil voltage | Heavy-duty contact rating | Factory-matched OEM part numbers HN53CB115, HN53CD115, HN53HF122
  • OEM vs Generic: OEM contactors use silver-alloy contacts rated for precise amp thresholds, ensuring long service life. Generic units are prone to premature pitting and arcing, leading to repeat failures and potential compressor damage.
  • Install difficulty: 3/5 — Always disconnect power at the breaker AND disconnect switch before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Line-voltage terminals are present — exercise caution.
  • Warranty: 1-year OEM factory warranty. Orders ship same business day from our warehouse when placed before 3 PM local time.

Compatibility: Designed for the Carrier C50A505012 packaged unit. Cross-references OEM part numbers HN53CB115, HN53CD115, and HN53HF122 — all are factory-approved replacements for this model. Confirm coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to verify compatibility before you purchase.

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 $75
  • 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 C50A505012?
Yes. This is the factory-specified OEM contactor for the Carrier C50A505012. 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 C50A505012?
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