2NC / 2NO

2 Normally Open / 2 Normally Closed contactors provide both open and closed contacts in a single device, reducing space and simplifying control panels in industrial automation and HVAC systems.

• 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.

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.