Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Contactor 2-Pole 24V Coil for CP50P450P405520CP
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for CP50P450P405520CP

SKU: CARRIE-CP50P450P405520CP-CONTACTOR-HN53CD115 Brand: Carrier
✓ Guaranteed to fit CP50P450P405520CP — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model CP50P450P405520CP

This OEM contactor is the factory-specified replacement for the Carrier CP50P450P405520CP packaged unit. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the call for cooling arrives, the contactor closes to supply line voltage directly to the compressor and condenser fan motor. A failed contactor typically causes the outdoor unit to remain completely off, even when the thermostat is calling for cooling, or may cause pitting and arcing that leads to intermittent startup failures and premature compressor wear.

  • Specs: 2-pole configuration | 24V AC coil voltage | Heavy-duty contact rating | OEM part number HN53CD115 | Factory-matched for Carrier CP50P450P405520CP
  • OEM vs Generic: This OEM contactor uses factory-spec contact materials and coil windings, ensuring reliable pull-in voltage and contact life. Generic contactors often use lower-grade contact alloys that pit and weld prematurely, causing compressor lockouts and costly callbacks.
  • Install difficulty: 2/5 — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Discharge any capacitors in the unit before working nearby.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our climate-controlled warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model CP50P450P405520CP commercial packaged units. Verify coil voltage (24V) and pole configuration against your unit's wiring diagram and data plate before ordering. Our fitment team is available to confirm compatibility — reach out before you order for peace of mind. In stock and ready to ship 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 CP50P450P405520CP?
Yes. This is the factory-specified OEM contactor for the Carrier CP50P450P405520CP. 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 CP50P450P405520CP?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online