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

MA3350 - 350 Amp Circuit Breaker

  • 350 Amp
  • 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  • 3 Pole
Circuit BreakersSKU: MA3350 [NS]

Purchase Options: New Surplus

MA3350 - 350 Amp Circuit Breaker Description

MA3350 - 350 Amp Circuit Breaker

Protect your critical electrical systems without fuss. The MA3350 350 Amp Circuit Breaker is a high-capacity, heavy-duty solution built to safeguard your industrial or commercial power distribution. Whether you're managing large motors, HVAC systems, or complex machinery, this breaker delivers dependable thermal-magnetic protection and is ready to go right out of the box.

Key Features and Benefits

  • Combined Thermal-Magnetic Safety: On the one hand, thermal elements prevent overload; on the other, magnetic action responds instantaneously to short circuits—giving you full-spectrum protection from one device.
  • Interchangeable Trip Unit: Swap trip modules quickly if your system changes or you want to dial in custom settings. Less downtime, more flexibility.
  • Load-Side Terminals Included: Comes ready to install—no extra parts needed. That means faster setup and sooner you’re back up and running.
  • Trusted MA Frame Design: Part of the well-known MA series with a rock-solid reputation for delivering dependable performance in demanding environments.

Technical Specifications

  • Frame Type: MA
  • Poles: 3
  • Amperage: 350A
  • Voltage Rating: 600VAC
  • Interrupting Capacity:
    • 22kA at 600VAC
    • 30kA at 480VAC
    • 42kA at 240VAC
  • Dimensions:
    • Width: 8.25 inches
    • Length: 16.00 inches
    • Depth: 4.00 inches
  • Weight: ~50 lbs
  • Ambient Temp Rating: 40°C

Material Compliance and Certifications

  • UL Standards: Fully meets UL-listed safety standards, giving you peace of mind in industrial operations.
  • Quality Components: Built from quality components that stand up to tough conditions and regular use.
  • Broad Certification: Certified for a broad range of industrial and commercial applications—engineered to meet rigorous safety and functional benchmarks.

Suitability

  • The MA3350 shines in environments where high fault currents aren’t just possible—they’re expected. It’s a go-to replacement for aging breakers in factories, large shops, warehouses, or energy control rooms. If you need reliable, hassle-free protection for critical circuits—especially in industrial or commercial settings—that won’t quit before you do, this breaker is your ideal partner.

 


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. All trademarks and registered trademarks are the property of their respective owners.

Specifications

  • Width:8.25
  • Height:16.0
  • Depth:4.0
  • Poles:3
  • Amperes:350
  • A.I.C. Rating & Volts:22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  • Type:MA
  • 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.

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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