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Normally Open

Shopcorp 40A 2 Pole 600V Definite Purpose, NO Contactor - 110/120VAC Coil for HVAC and Lighting - 2 pack
Shopcorp 40A 2 Pole 600V Definite Purpose, NO Contactor - 110/120VAC Coil for HVAC and Lighting - 2 pack
$41.99 - $41.99
$41.99
$41.99 - $41.99
$41.99

Shopcorp 40Amp 2 Pole 600V Definite Purpose Normally Open Contactor - 110/120VAC Coil for HVAC, AC and Lighting | 2 pack

In stock
Rated 4.5 out of 5
Based on 35 reviews

Shopcorp 40A 2 Pole Normally Open 600V Definite Purpose Contactor - 2 pack We offer a diverse range of contactors, including HVAC contactors, AC c...

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$41.99 - $41.99
$41.99
$41.99 - $41.99
$41.99
Shopcorp 40A 2 Pole 600V, 24V, Inductive 40A / Resistive 50A Contactor for HVAC and Lighting - 2 pack
Shopcorp 40A 2 Pole 600V, 24V, Inductive 40A / Resistive 50A Contactor for HVAC and Lighting - 2 pack
$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99

Shopcorp 40 Amp 2 Pole Contactor 24VAC - Definite Purpose 600V, Inductive 40A, Resistive 50A for HVAC & Lighting | 2 pack

In stock
Rated 4.5 out of 5
Based on 35 reviews

Shopcorp 40A 2 Pole Definite Purpose Contactor - 2 pack We offer a diverse range of contactors, including HVAC contactors, AC contactors, and ligh...

View full details
$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99
Shopcorp 40A 2 Pole 600V Definite Purpose, NO Contactor - 110/120VAC Coil for HVAC and Lighting
Shopcorp 40A 2 Pole 600V Definite Purpose, NO Contactor - 110/120VAC Coil for HVAC and Lighting
$21.99 - $21.99
$21.99
$22.99
$22.99 - $22.99
$22.99

Shopcorp 40 Amp 2 Pole 600V Definite Purpose Normally Open Contactor - 110/120VAC Coil for HVAC & Lighting - UL Certified

In stock
Rated 4.8 out of 5
Based on 44 reviews

Shopcorp 40A 2 Pole Normally Open 600V Definite Purpose Contactor  We offer a diverse range of contactors, including HVAC contactors, AC contactor...

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$21.99 - $21.99
$21.99
$22.99
$22.99 - $22.99
$22.99
Migro 40A 2 Pole 600V, 24V, Inductive 40A / Resistive 50 A Contactor for HVAC and Lighting with NEMA standards
$21.99 - $21.99
$21.99
$21.99 - $21.99
$21.99

Migro 40 Amp 2 Pole 600V Contactor - 24V, Inductive 40 Amp / Resistive 50 Amp for HVAC and Lighting with NEMA standards

In stock
Rated 4.8 out of 5
Based on 46 reviews

Migro 40A 2 Pole Definite Purpose Contactor with NEMA standards We offer a diverse range of contactors, including HVAC contactors, AC contactors, ...

View full details
$21.99 - $21.99
$21.99
$21.99 - $21.99
$21.99
Shopcorp 40A 2 Pole 600V, 24V, Inductive 40A / Resistive 50A Contactor for HVAC and Lighting
Shopcorp 40A 2 Pole 600V, 24V, Inductive 40A / Resistive 50A Contactor for HVAC and Lighting
$22.45 - $22.45
$22.45
$22.45 - $22.45
$22.45

Shopcorp 40A 2 Pole Definite Purpose Contactor 600V - 24VAC Coil, Inductive 40A / Resistive 50A for HVAC, AC & Lighting Systems

In stock
Rated 4.5 out of 5
Based on 34 reviews

Shopcorp 40A 2 Pole Definite Purpose Contactor We offer a diverse range of contactors, including HVAC contactors, AC contactors, and lighting cont...

View full details
$22.45 - $22.45
$22.45
$22.45 - $22.45
$22.45
Migro 40A 2 Pole 600V, 24V, Inductive 40A / Resistive 50 A Contactor for HVAC and Lighting with NEMA standards - 2 pack
Migro 40A 2 Pole 600V, 24V, Inductive 40A / Resistive 50 A Contactor for HVAC and Lighting with NEMA standards - 2 pack
$42.99 - $42.99
$42.99
$42.99 - $42.99
$42.99

Migro 40A 2 Pole 600V - 24V, Inductive 40A / Resistive 50 A Contactor for HVAC and Lighting with NEMA standards | 2 pack

In stock
Rated 4.5 out of 5
Based on 19 reviews

Migro 40A 2 Pole Definite Purpose Contactor with NEMA standards (2 pack) We offer a diverse range of contactors, including HVAC contactors, AC con...

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$42.99 - $42.99
$42.99
$42.99 - $42.99
$42.99
Shopcorp 60 Amp 2 Pole Definite Purpose Contactor | 75A RES, 24V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems
Shopcorp 60 Amp 2 Pole Definite Purpose Contactor | 75A RES, 24V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems
Sold out
$0.00 - $0.00
$0.00
$66.99
$66.99 - $66.99
$66.99

Shopcorp 60 Amp 2 Pole Definite Purpose Contactor | 75A RES, 24V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems

Out of stock
Rated 4.6 out of 5
Based on 10 reviews

Reliable 60A 2 Pole Contactor for HVAC and Refrigeration The Shopcorp 60A 2 Pole Definite Purpose Contactor is engineered for demanding HVAC, refri...

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$0.00 - $0.00
$0.00
$66.99
$66.99 - $66.99
$66.99
Sold out
Shopcorp 60 Amp 2 Pole Definite Purpose Contactor | 75A RES, 120V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems
Shopcorp 60 Amp 2 Pole Definite Purpose Contactor | 75A RES, 120V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems
$0.00 - $0.00
$0.00
$66.99
$66.99 - $66.99
$66.99

Shopcorp 60 Amp 2 Pole Definite Purpose Contactor | 75A RES, 120V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems

Low stock
Rated 4.6 out of 5
Based on 8 reviews

Reliable 60A 2 Pole Contactor for HVAC and Refrigeration The Shopcorp 60A 2 Pole Definite Purpose Contactor is engineered for high-demand HVAC, ref...

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$0.00 - $0.00
$0.00
$66.99
$66.99 - $66.99
$66.99
Shopcorp 60 Amp 2 Pole Definite Purpose Contactor – 75A RES, 220/240V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems
Shopcorp 60 Amp 2 Pole Definite Purpose Contactor | 75A RES, 220/240V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems
$0.00 - $0.00
$0.00
$66.99
$66.99 - $66.99
$66.99

Shopcorp 60 Amp 2 Pole Definite Purpose Contactor | 75A RES, 220/240V Coil, UL Listed for HVAC, Refrigeration & Heat Pump Systems

In stock
Rated 4.6 out of 5
Based on 7 reviews

Reliable 60A 2 Pole Contactor for HVAC and Refrigeration The Shopcorp 60A 2 Pole Definite Purpose Contactor is built for demanding HVAC, refrigerat...

View full details
$0.00 - $0.00
$0.00
$66.99
$66.99 - $66.99
$66.99
Shopcorp 40 Amp 2 Pole Definite Purpose Contactor | 50A RES, 240V Coil, UL Listed for HVAC, Lighting & Motor Load Applications
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99

Shopcorp 40 Amp 2 Pole Definite Purpose Contactor | 50A RES, 240V Coil, UL Listed for HVAC, Lighting & Motor Load Applications

In stock
Rated 4.6 out of 5
Based on 7 reviews

Reliable 40A 2 Pole Contactor for HVAC, Lighting & Refrigeration The Shopcorp 40A 2 Pole Definite Purpose Contactor is engineered for HVAC sys...

View full details
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99

 

Discover our Normally Open Collection, offering essential contactor solutions for various applications. Whether you need HVAC contactors, air conditioner contactors, or motor contactors, our high-quality selection has you covered.

Find reliable and efficient electrical contactors tailored to your specific needs. Explore our collection today for the right electrical solution.

FAQ

What are the advantages of NO contactors?

Normally Open contactors are widely used because they only carry current when activated, which makes them energy-efficient and safer for variable loads. They are ideal for HVAC compressors, pumps, and lighting systems where switching is required.

What does NO and NC mean in contactors?

In contactors, NO (Normally Open) means the circuit is open until the coil is energized, allowing current to flow only when activated. NC (Normally Closed) means the circuit stays closed by default and opens when the coil is energized. These functions are essential for controlling different types of electrical loads.

Where are NO, NC, and 2NO/2NC contactors used?
  • Normally Open contactors are commonly used for variable loads such as motors, HVAC systems, and lighting.

  • Normally Closed contactors are used for fixed or safety-critical loads, ensuring continuity until intentionally deactivated.

  • 2NO/2NC contactors combine both options in one device, making them ideal for automation systems and complex industrial applications.


At Contactor Depot, we carry all these configurations (NO, NC, and 2NO/2NC contactors) in multiple pole and voltage options to match your application.

What is the difference between NO, NC, and 2NO/2NC contactors?

The difference lies in how the contacts behave:

  • NO contactors start open and close when energized.
  • NC contactors start closed and open when energized.
  • 2NO/2NC contactors provide a mix of both, offering greater flexibility for dual operations in HVAC, motor control, and automation.

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