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OEM Carrier 410A Contactor 2-Pole 24V Coil for C50A404011
Carrier

OEM Carrier 410A Contactor 2-Pole 24V Coil for C50A404011

SKU: CARRIE-C50A404011-CONTACTOR-HN53CB115 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C50A404011

This OEM contactor is the factory-specified replacement for the Carrier C50A404011 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the control board and closes the circuit to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the system will power on at the thermostat but the compressor and outdoor unit will not respond. In some cases, a failed contactor causes the system to run continuously without cycling off.

  • Specs: 2-pole configuration | 24V control coil | Rated for R-410A system load | OEM part numbers HN53CB115 and HN53CD115 | Factory-matched contact material and coil resistance
  • OEM vs Generic: OEM contactors use factory-spec contact alloy and coil wire gauging. Generic contactors frequently use undersized contacts that pit and weld prematurely, especially under high-cycling summer loads — OEM is strongly recommended for compressor protection.
  • Install difficulty: 2/5 — Disconnect all power at the breaker and verify with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Line-voltage terminals must be re-torqued to spec to prevent arcing.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Fits Carrier C50A404011 commercial packaged units. This listing covers OEM part numbers HN53CB115 and HN53CD115 — both are direct replacements for this model. Always verify pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Not sure it fits? Our parts team confirms fitment before you buy — reach out before placing your order.

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 C50A404011?
Yes. This is the factory-specified OEM contactor for the Carrier C50A404011. 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 C50A404011?
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
HVAC Parts Specialist — Online