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** Picture is for identification purposes only and may not represent the actual amperage of the product listed **

HM631400 - 400Amp Circuit Breaker

  • 400 Amp
  • 3 Pole
Circuit BreakersSKU: HM631400 [R]

Purchase Options: Refurbished

HM631400 - 400Amp Circuit Breaker Description

HM631400 - 400Amp Circuit Breaker

The HM631400 400 Amp Circuit Breaker is designed for dependable performance in commercial and industrial electrical systems where consistent power protection is critical. Rated at 400 amps and built with a three-pole configuration, this HM frame breaker helps protect equipment and distribution systems from overloads and short circuits. It’s a practical solution for maintenance teams and electrical contractors who need a straightforward, heavy-duty breaker that performs reliably under demanding load conditions. With its solid construction and proven design, the HM631400 supports safe operation and long service life in high-capacity power applications.

Key Features and Benefits

  • 400 Amp Rating: Supports high electrical loads commonly found in industrial and large commercial settings.
  • Three Poles: Provides balanced three-phase protection for improved system performance.
  • HM Frame Construction: Built for durability in tough electrical environments.
  • Reliable Overcurrent Protection: Helps minimize downtime by interrupting overloads and fault conditions efficiently.
  • Ideal for Replacement and Maintenance: A practical choice when servicing or upgrading existing systems.

Technical Specifications

  • Model: HM631400
  • Amperage: 400A
  • Poles: 3
  • Frame Type: HM
  • Shipping Weight: Approximately 46 lbs

Material Compliance and Certifications

  • The HM631400 circuit breaker is manufactured to meet applicable industry safety and performance standards. It is suitable for use in commercial and industrial electrical systems where compliance with recognized electrical codes is required.

Where It Works Best

  • This 400 amp, three-pole circuit breaker is commonly used in manufacturing facilities, commercial buildings, distribution panels, and other high-demand electrical systems. It’s especially useful in maintenance applications where dependable protection and compatibility with existing HM frame equipment are important.

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Specifications

  • Poles:3
  • Amperes:400
  • Type:HM

Returns are easy

You may return unused items within 30 days of delivery for a full refund.

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

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