Best Seller 2 Pole Contactor 40 Amp 120VAC Coil
2 pole 40 amp contactor with 120VAC coil and electrical rating label visible.
Close-up of a 2-pole, 40-amp contactor with a 120VAC coil for HVAC systems.
Front view of a 2-pole 40 Amp contactor with 120VAC coil showing copper windings and electrical terminals.
Technician installing a 40 Amp 2-pole contactor with 120VAC coil into an air conditioning unit.
40 Amp 2 pole contactor with close-up view of heat-resistant silver alloy coil winding.
40 Amp 2-pole contactor with 120VAC coil showing the protective plastic housing and mounting base.
Woman relaxing on a couch under a wall-mounted air conditioner to promote 2 pole 40 amp 120VAC contactor repair.
2 pole 40 amp contactor with 120VAC coil and electrical rating label visible.
Close-up of a 2-pole, 40-amp contactor with a 120VAC coil for HVAC systems.
Front view of a 2-pole 40 Amp contactor with 120VAC coil showing copper windings and electrical terminals.
Technician installing a 40 Amp 2-pole contactor with 120VAC coil into an air conditioning unit.
40 Amp 2 pole contactor with close-up view of heat-resistant silver alloy coil winding.
40 Amp 2-pole contactor with 120VAC coil showing the protective plastic housing and mounting base.
Woman relaxing on a couch under a wall-mounted air conditioner to promote 2 pole 40 amp 120VAC contactor repair.

2 Pole Contactor 40 Amp 120VAC Coil

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$20.15
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$20.15
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2 Pole Contactor 40 Amp 120VAC Coil

Key Features

  • Poles: 2
  • Rated Current: 40 Amp Full Load Amps (FLA)
  • Coil Voltage: 110/120VAC, 50/60 Hz
  • Maximum Voltage Rating: 600VAC
  • Terminal Type: Box lugs and 1/4 inch quick connect terminals
  • Mounting: Standard mounting base for universal fit
  • Construction: Heavy-duty enclosed housing with copper contacts
  • Certifications: UL Certified

Replaces / Cross-Reference Part Numbers

  • Square D: 8910DP42V02
  • ABB: DP40C2P-1
  • ElecDirect: TCDP402G6
  • Interchangeable with other definite purpose contactors with matching electrical specifications.

Compatibility & Fitment

  • Designed for use in HVAC, air conditioning units, refrigeration systems, heating, lighting, and motor control applications.
  • Fits as a universal replacement for most residential and commercial definite purpose contactor applications requiring a 2-pole, 40 Amp, 120VAC coil configuration.

When to Replace

  • Contactor makes a loud buzzing or humming noise.
  • Visible signs of heat damage, melting, or burning on the housing or terminals.
  • Contacts are pitted, corroded, or welded together.
  • The controlled unit (e.g., compressor, fan motor) fails to start or will not turn off.
  • Coil is open or shorted, preventing the contactor from energizing.

Installation Tips

  • Disconnect all electrical power to the equipment before beginning installation.
  • Confirm the voltage and amperage ratings of the new contactor match the system's requirements.
  • Transfer wires from the old contactor to the new one, ensuring connections are clean and secure.
  • Mount the new contactor securely in the control panel.
  • After installation, restore power and verify proper operation of the equipment.
2 Pole Contactor 40 Amp 120VAC Coil 1
2 Pole Contactor 40 Amp 120VAC Coil 2
2 Pole Contactor 40 Amp 120VAC Coil 3
2 Pole Contactor 40 Amp 120VAC Coil 4
  • 2 Pole Contactor 40 Amp 120VAC Coil 1

    Perfect fit

    Our Contactor can replace 2 pole contactors rated at 20A 25A 30A 35A 40A (below or equal to 40A) on air conditioners and heat pumps.
  • 2 Pole Contactor 40 Amp 120VAC Coil 2

    Premium quality

    The Contactor is made of strong silver alloy which is oxidation resistant, high conductivity, and corrosion resistant.
  • 2 Pole Contactor 40 Amp 120VAC Coil 3

    Saving solution

    Effortlessly energize your machine with our Contactor - BlueStars brings DIY solutions to help you deal with any trouble.
  • 2 Pole Contactor 40 Amp 120VAC Coil 4

    Simple installation

    Our product is designed to be easily removed and replaced, allowing for quick and convenient maintenance.
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Compatible Models

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FAQs

This is a 2-pole, 40-amp definite purpose contactor designed for a 120VAC coil. It features a resistive rating of 50 amps at up to 600VAC and is suitable for both HVAC and lighting control applications.
If your HVAC system or equipment fails to start, makes a loud buzzing or chattering noise, or if the unit stays running even after the thermostat has reached the set temperature, the contactor may be failing. Pitted or burnt contact points are also clear signs that the internal components have reached the end of their service life.
Installation typically requires a screwdriver (flathead or Phillips, depending on your terminal screws), a pair of wire strippers, and a multimeter to verify power is disconnected and to test the new connection. Expect the replacement process to take approximately 15 to 30 minutes.
Always turn off the main power supply to the equipment at the breaker panel before beginning work. Use a multimeter to confirm that no voltage is present at the contactor terminals before touching any wires. If you are not comfortable working with high-voltage electrical components, consult a licensed professional.
Before installation, inspect the existing wiring for signs of heat damage, such as melted insulation or corroded terminals. If the wires are damaged, trim them back to clean copper or replace the affected spade connectors to ensure a secure, low-resistance connection. A loose connection is a common cause of premature contactor failure.