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OEM Carrier 2-Pole 24V Coil Definite Purpose 40A Contactor for C4850C50AJ02011 — Ships Today
Carrier

OEM Carrier 2-Pole 24V Coil Definite Purpose 40A Contactor for C4850C50AJ02011 — Ships Today

SKU: CARRIE-C4850C50AJ02011-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 C4850C50AJ02011

This OEM contactor (part# HN53CB115) is the factory-specified replacement for the Carrier C4850C50AJ02011 packaged unit. The contactor acts as a high-voltage relay, receiving a 24V signal from the thermostat or control board to close its contacts and deliver line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or stuck contacts — the result is an AC system that won't start, runs continuously without shutting off, or trips the breaker repeatedly.

  • Specs: 2-Pole configuration | 24V AC coil voltage | 40A contact rating | Factory-matched OEM part number HN53CB115 | Designed for R-410A systems
  • OEM vs Generic: This is the genuine OEM Carrier contactor, manufactured to exact factory specifications. Generic contactors may use lower-grade contact materials that arc and pit faster, leading to premature failure — especially in high-cycle cooling climates.
  • Install difficulty: 3/5 — Always shut off power at the disconnect box AND the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wire connections before removing the old contactor. Line-voltage terminals carry lethal current — if unsure, hire a licensed HVAC technician.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before 3PM EST ship same business day from our stocked warehouse.

Compatibility: Engineered for the Carrier C4850C50AJ02011 packaged unit. Verify coil voltage (24V) and pole configuration on your unit's data plate before ordering. The model series prefix C48/C50 indicates a Carrier commercial or residential packaged gas-electric or cooling-only unit — confirm your exact model and serial number for guaranteed fitment. Our parts specialists are available to verify compatibility before you order — no guesswork, no return hassle.

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 C4850C50AJ02011 — Ships Today?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50AJ02011 — Ships Today. 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 C4850C50AJ02011 — Ships Today?
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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