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HMA3350 - 350Amp Circuit Breaker

  • 350 Amp
  • 25k @ 600VAC; 35k @ 480VAC; 65k @ 240VAC
  • 3 Pole
Circuit BreakersSKU: HMA3350 [NS]

Purchase Options: New Surplus

HMA3350 - 350Amp Circuit Breaker Description

HMA3350 - 350Amp Circuit Breaker

When you’re replacing a breaker in an existing electrical system, getting the details right matters. The HMA3350 is a 350-amp, 3-pole thermal-magnetic circuit breaker designed for applications that require the HMA type and its specific electrical and physical characteristics. This breaker is rated at 40°C and uses an interchangeable trip unit, giving technicians a familiar configuration when maintaining compatible equipment. It also comes with load-side terminals included.

Key Features and Benefits

  • 350 Amp, 3-pole configuration for compatible electrical distribution equipment
  • Thermal magnetic operation provides the breaker functionality specified for this HMA model
  • Interchangeable trip unit for applications designed around this trip configuration
  • Rated for operation at 40°C
  • Load-side terminals are included
  • Defined dimensions help technicians confirm physical fit before installation
  • Well suited to maintenance and replacement situations where retaining the existing HMA breaker configuration is important

Technical Specifications

  • Part Number: HMA3350
  • Type: HMA
  • Breaker Type: Thermal Magnetic
  • Amperage: 350 Amps
  • Poles: 3
  • Temperature Rating: 40°C
  • A.I.C. @ 600VAC: 25k
  • A.I.C. @ 480VAC: 35k
  • A.I.C. @ 240VAC: 65k
  • Trip Unit: Interchangeable
  • Load-Side Terminals: Included
  • Width: 8.25 in.
  • Height / Length: 16.00 in.
  • Depth: 4.00 in.
  • Dimensions: 8.25"W x 16.00"L x 4.00"D
  • Approx. Shipping Weight: 46.00 lbs.

Material Compliance and Certifications

No specific material-compliance standards, agency listings, or certifications were included in the supplied HMA3350 specifications. Because those details can matter for certain facilities and applications, they should not be assumed based solely on the model number.

Where a project requires a particular certification or compliance standard, confirm the markings on the individual breaker and check the applicable equipment documentation before installation.

Where It Works Best

The HMA3350 circuit breaker makes the most sense for existing electrical equipment designed to accept an HMA-type 350-amp, 3-pole thermal-magnetic breaker. That can include maintenance and replacement work in industrial facilities, commercial properties, and other electrical distribution environments where keeping the original equipment configuration is 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.

Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.

Specifications

  • Width:8.25
  • Height:16.0
  • Depth:4.0
  • Poles:3
  • Amperes:350
  • A.I.C. Rating & Volts:25k @ 600VAC; 35k @ 480VAC; 65k @ 240VAC
  • Type:HMA
  • Approx Dimensions:8.25"W x 16.00"L x 4.00"D
  • Additional Notes:40°C Rated, Thermal Magnetic Circuit Breaker With Interchangeable Trip Unit. This item includes load-side terminals. - discontinued by the Manufacturer

Returns are easy

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

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

Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.

If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.

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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