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Carrier

OEM Carrier Contactor C50A402511 for Model C50A402511

SKU: carrier-contactor-c50a402511 Brand: Carrier
$44.95

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Contactor C50A402511 for Model C50A402511

Keep your HVAC system running with this genuine OEM Carrier contactor (C50A402511), the power-switching component that energizes your compressor and condenser fan motor on a call for cooling. A low-voltage signal from the thermostat pulls in the coil, closing the contacts to feed line voltage to the outdoor unit. As contactors age, the contacts corrode and pit, causing buzzing, intermittent cycling, welded-closed contacts, or a complete failure to start. This replacement is engineered to match the amperage rating, coil voltage, and pole layout of Carrier model C50A402511 exactly, so it drops right in. The repair is moderate and DIY-friendly: turn off power at the disconnect, photograph the current wiring for reference, move wires one at a time to the new contactor, and mount it securely. Most homeowners and techs finish in about 25 minutes with basic tools. Installing the factory OEM part ensures correct ratings and dependable, long-lasting performance. This contactor is in stock and ships same-day when you order before 3PM CST. Order today to restore cooling quickly.

Compatibility

This part is compatible with Carrier model C50A402511.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier Model C50A402511?
Yes. This is the factory-specified OEM contactor for the Carrier Model C50A402511. 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 Model C50A402511?
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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