Square D

Square D MGA36400 400A 3 Pole Electronic MCCB – I-Line Plug In – 600V

In stock
SKU: MGA36400-NS GTIN/UPC: 785901496144
$3,999.00
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1 year warranty
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The Square D MGA36400 400A 3 Pole Electronic MCCB – I-Line Plug In – 600V is a PowerPact M frame molded case circuit breaker designed to provide advanced protection for industrial and commercial electrical distribution systems. Featuring an electronic trip unit and I-Line plug-in mounting configuration, this breaker delivers accurate overload and short-circuit protection while supporting efficient installation and maintenance. Its rugged construction and high interrupting capability make it suitable for demanding power distribution environments requiring dependable performance and operational safety.

Product Specifications

  • Brand: Square D
  • Model: MGA36400
  • Product Series: PowerPact M
  • Rated Current: 400 Ampere
  • Number of Poles: 3 Pole
  • Breaker Type: Electronic Molded Case Circuit Breaker (MCCB)
  • Mount Type: I-Line Plug In
  • Frame Type: M Frame
  • Maximum Voltage: 600 VAC
  • Trip Unit Type: Electronic Trip Unit
  • Standard Lug Type: Load End
  • Application: Industrial and Commercial Power Distribution

Technical Specifications

  • Interrupting Capacity:
    • 65 kA @ 240 VAC
    • 35 kA @ 480 VAC
    • 18 kA @ 600 VAC
  • Trip Setting Range: 800 – 4000
  • Operating Temperature Reference: 40°C
  • Protection Type: Overload and Short Circuit Protection
  • Connection Type: Plug In
  • Terminal Configuration: Load End Terminals Standard
  • High Interrupting Capacity Design
  • Durable PowerPact M Construction

Voltage and Ratings

  • Rated Operational Voltage: Up to 600 VAC
  • Current Rating: 400A
  • Pole Configuration: 3 Pole
  • Interrupting Rating at 240 VAC: 65 kA
  • Interrupting Rating at 480 VAC: 35 kA
  • Interrupting Rating at 600 VAC: 18 kA
  • Frequency: 50/60 Hz
  • Temperature Calibration: 40°C

Product Data

  • Manufacturer: Square D
  • Product Series: PowerPact M
  • Product Condition: New / Certified Reconditioned (Depending on Availability)
  • Warranty: 1 Year In-House Warranty
  • Connection Style: I-Line Plug In
  • Frame Style: M Frame
  • Suitable For: Switchboards, Panelboards, and Commercial Distribution Systems
  • Accessory Installation: Available at No Additional Cost with Breaker Purchase
  • Packaging: Standard Industrial Packaging
  • Country of Origin: USA

Important Note

Product images are provided for identification purposes only and may not represent the exact configured unit. Accessories purchased together with the breaker can be professionally installed according to your required configuration at no additional cost. Installation, operation, and maintenance should only be performed by qualified electrical personnel in accordance with applicable electrical codes and safety regulations. Warranty coverage includes repairs, replacement parts, labor, and standard shipping required for recertification, excluding damage caused by misuse, improper installation, or normal operational wear and tear.
  • Type Circuit Breakers
  • Vendor Square D
  • Brand Square D

Returns are easy

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

FREE Shipping on orders over $149.

My Circuit Breakers 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, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.