{"product_id":"lifetime-warranty-2-pole-contactor-40-amp-24vac-coil-exact-fit-with-relays-air-conditioner-heat-pump-refrigeration-systems","title":"[Lifetime Warranty] 2 Pole Contactor 40 Amp 24VAC Coil Exact Fit with Relays, Air Conditioner, Heat Pump, Refrigeration Systems","description":"\u003ch2\u003e2-Pole Contactor (40 Amp, 24VAC Coil)\u003c\/h2\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 40A Rating:\u003c\/strong\u003e Designed to handle the high inductive loads of large A\/C compressors and heat pump motors, providing a significantly longer service life than standard 30A units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Pole Configuration:\u003c\/strong\u003e Breaks both legs of a 240V circuit simultaneously, ensuring total power isolation to the equipment when the thermostat is not calling for cooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24V Low-Voltage Coil:\u003c\/strong\u003e Engineered for an \"Exact Fit\" with standard residential HVAC control systems, allowing the thermostat to trigger the high-voltage circuit safely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver Alloy Contacts:\u003c\/strong\u003e Features premium oxide-resistant contact points to prevent welding and pitting, maintaining high conductivity through thousands of cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDust-Shielded Design:\u003c\/strong\u003e Built with a protective housing to prevent insects and debris from interfering with the mechanical plunger or the electrical contacts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eC240A\u003c\/li\u003e\n\u003cli\u003eDP40242\u003c\/li\u003e\n\u003cli\u003eCTR02574\u003c\/li\u003e\n\u003cli\u003eCONT2P040024V\u003c\/li\u003e\n\u003cli\u003eHCCY2XU04AA303\u003c\/li\u003e\n\u003cli\u003eMars 17421\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis contactor is a universal replacement for most residential and light commercial HVAC units. Key compatible brands include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Conditioners \u0026amp; Heat Pumps:\u003c\/strong\u003e Fits units from Carrier, Bryant, Payne, Rheem, Ruud, Goodman, Amana, Lennox, Trane, and American Standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigeration Systems:\u003c\/strong\u003e Compatible with walk-in coolers and commercial refrigeration compressors requiring a 24V control signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Compatibility:\u003c\/strong\u003e The coil requires 24VAC; the load terminals are rated for use with 120V, 208V, or 240V AC power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumming or Chattering:\u003c\/strong\u003e A loud buzzing noise often indicates that the 24V coil is weak or that the contacts are dirty and unable to pull in fully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondenser Won't Start:\u003c\/strong\u003e The indoor fan is running and the thermostat is set to \"Cool,\" but the outdoor unit is silent, suggesting a failed contactor coil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurned or Pitted Contacts:\u003c\/strong\u003e Visible blackening or \"soot\" around the metal contact points, which can cause the compressor to overheat or fail to start.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelded Contacts:\u003c\/strong\u003e The outdoor fan and compressor continue to run even when the thermostat is turned off, indicating the contacts have melted together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnt\/Insect Infestation:\u003c\/strong\u003e Small insects (like \"crazy ants\") are attracted to the electrical field and can get crushed between the contacts, preventing a solid connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First:\u003c\/strong\u003e Turn off the power at both the outdoor disconnect box and the main indoor breaker panel. Verify with a multimeter that no voltage is present before touching the wires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLabel Your Wires:\u003c\/strong\u003e Take a photo of the old contactor before disconnecting. Mark the \"Line\" (power in), \"Load\" (to compressor), and \"Control\" (24V wires from the thermostat) clearly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Terminals:\u003c\/strong\u003e Ensure all lug screws are tightened firmly. A loose connection on a 40A circuit will generate extreme heat and can melt the wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrientation:\u003c\/strong\u003e While contactors can often be mounted in various positions, mounting it vertically (as originally designed) helps prevent dust and moisture from settling on the moving plunger.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify the Coil:\u003c\/strong\u003e Ensure your system is 24V. If you install a 24V contactor into a system that uses a 120V or 240V control circuit, the coil will burn out instantly.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46497319157949,"sku":"AZ00105092","price":17.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00105092_1.jpg?v=1765959298","url":"https:\/\/bluestarsparts.com\/products\/lifetime-warranty-2-pole-contactor-40-amp-24vac-coil-exact-fit-with-relays-air-conditioner-heat-pump-refrigeration-systems","provider":"BlueStars Parts","version":"1.0","type":"link"}