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circuit-breaker

685978 685978 Circuit Breaker, 80A, 2-Pole, 440V

Part Number 685978
Amperes 80
Poles 2
Voltage 440
Product Type circuit-breaker
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Manufacturer :685978
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $460.00
Sale price $460.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
685978 685978 Circuit Breaker, 80A, 2-Pole, 440V

685978 685978 Circuit Breaker, 80A, 2-Pole, 440V

Regular price $460.00
Sale price $460.00 Regular price
Unit price
Product description
Shipping

The 685978 circuit breaker is built for rugged industrial use, delivering reliable overcurrent protection for demanding electrical systems. With an 80 A rating and a 2-pole design for 440 V applications, this unit is ideal for industrial service, ongoing maintenance, and replacement projects. Use the part number 685978 to confirm exact compatibility with your panel and operating requirements.

Why this 685978 circuit breaker stands out

  • Two-pole protection for balanced safety – disconnects both live lines in a 440 V circuit, helping safeguard equipment and reduce the risk of partial outages.
  • High-load capability – 80 A rating makes it suited for mid-to-high current feeders, motors, conveyors, and other demanding industrial loads.
  • Industrial-ready form factor – designed to integrate with compatible panels and enclosure configurations in manufacturing environments.
  • Field-friendly replacement – straightforward swap for aging or worn breakers, helping minimize downtime during maintenance or upgrades.
  • Clear compatibility check – verify fit quickly by cross-referencing part number 685978 with your application and panel documentation.

Ideal use cases

  • Main feeders and branch protection in industrial distribution panels
  • Motor control circuits and drive applications in manufacturing floors
  • Replacement for aging breakers in service or maintenance scenarios
  • Panel upgrade projects where 440 V, 2-pole protection is required

Compatibility and installation considerations

  • Verify fit by part number (685978) and confirm the panel supports 440 V, 2-pole devices with an 80 A rating.
  • Ensure the circuit is de-energized and all safety protocols are followed before replacement.
  • Consult your panel’s installation guidelines for termination torque and mounting specifics to ensure a reliable connection.
  • Keep documentation handy for future maintenance, audits, or part-number-based compatibility checks.

Specifications at a glance

  • Amperage: 80 A
  • Poles: 2
  • Voltage: 440 V
  • Product Type: Circuit Breaker
  • Part/Manufacturer: 685978

Contact sales@ampstate.com

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

Verified

Matched our existing hardware and fit as expected. Clean install.

Maintenance · Retrofit work

Verified

Quick confirmation on details and a smooth ordering process.

Purchasing · Fast turnaround

Verified

Came well packed. Labeling made receiving and staging easy.

Warehouse · Receiving

Fast industrial sourcing support

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Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

Email for a quote Typical reply: same business day