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OEM Carrier 2-Pole Contactor 40A 24V for TCHC2550HECMRAP901
Carrier

OEM Carrier 2-Pole Contactor 40A 24V for TCHC2550HECMRAP901

SKU: CARRIE-TCHC2550HECMRAP901-CONTACTOR-HN52TC040 Brand: Carrier
✓ Guaranteed to fit TCHC2550HECMRAP901 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 40 Amp 24V Coil — HN52TC040 for Model TCHC2550HECMRAP901

This OEM Carrier contactor (part number HN52TC040) is the factory-specified high-voltage relay for the Carrier TCHC2550HECMRAP901 system. The contactor acts as the critical electrical switch between the 24V control circuit and the high-voltage compressor and condenser fan motor circuits. When the thermostat calls for cooling, the 24V coil energizes and pulls in the contacts, closing the circuit to start the compressor and fan. A failed contactor typically presents as an AC unit that won't turn on, a buzzing or chattering condenser unit, or a compressor that runs continuously without shutting off due to welded contacts.

  • Specs: 2-Pole | 40 FLA (Full Load Amps) | 24V 50/60Hz coil voltage | Definite-purpose contactor | Direct OEM replacement for HN52TC040
  • OEM vs Generic: This is a genuine Carrier OEM contactor, manufactured to exact factory tolerances for coil resistance, contact material, and pull-in voltage. Generic contactors may use lower-grade silver-alloy contacts that pit and weld faster under high-cycle loads, leading to premature failure.
  • Install difficulty: 2/5 — Requires disconnecting main power at the disconnect box before beginning work. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before removing terminals. The coil leads are low-voltage (24V); line-side terminals are high-voltage and must be handled with care even after power is off.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our NationalHVACParts.com warehouse.

Compatibility: Designed as an exact drop-in replacement for the Carrier TCHC2550HECMRAP901. Verify your unit's data plate shows the HN52TC040 part number or matching 2-pole, 40A, 24V contactor specification before ordering. Our fitment team is available to confirm compatibility — order with confidence and get your system back up and running today.

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 TCHC2550HECMRAP901?
Yes. This is the factory-specified OEM contactor for the Carrier TCHC2550HECMRAP901. 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 TCHC2550HECMRAP901?
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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