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OEM Carrier Contactor 2-Pole 40A 24V for TCHC2550HECMRLP502
Carrier

OEM Carrier Contactor 2-Pole 40A 24V for TCHC2550HECMRLP502

SKU: CARRIE-TCHC2550HECMRLP502-CONTACTOR-HN52TC040 Brand: Carrier
✓ Guaranteed to fit TCHC2550HECMRLP502 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole 40 Amp 24V Contactor HN52TC040 for Model TCHC2550HECMRLP502

This is the factory-specified OEM replacement contactor for the Carrier TCHC2550HECMRLP502 heat pump system. The contactor is the high-voltage relay that receives a low-voltage (24V) signal from the thermostat and closes the circuit to power the compressor and condenser fan motor. When this component fails, the system will either not respond to a call for cooling or heating at all, or may intermittently drop out mid-cycle — leaving you with no comfort and a system stuck in lockout.

  • Specs: 2-Pole | 40 FLA (Full Load Amps) | 24V AC Coil | 50/60 Hz | 240/277V load voltage | Direct OEM replacement for part number HN52TC040
  • OEM vs Generic: This is a genuine Carrier OEM contactor built to exact factory amperage and coil pull-in tolerances. Generic contactors often have undersized contacts that pit and arc under repeated compressor load cycling, causing premature failure and potential compressor damage.
  • Install Difficulty: 3/5 — Always disconnect power at the disconnect box and confirm voltage is zero with a multimeter before working. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Line-voltage terminals are present — use caution.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Fits Carrier model TCHC2550HECMRLP502. Verify your existing contactor's pole count, amperage rating, and coil voltage against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us 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 $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 TCHC2550HECMRLP502?
Yes. This is the factory-specified OEM contactor for the Carrier TCHC2550HECMRLP502. 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 TCHC2550HECMRLP502?
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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