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MJA36400 – Square D – Molded Case Circuit Breaker I-Line Plug-In – 400 Amp – 3 Pole – 600 Volt

SKU: MJA36400 Categories: ,



The Schneider Electric MJA36400 is a molded case circuit breaker. This type MJA circuit breaker is a member of The Powerpact family. The MJA36400 is a 3 pole, 600 Volt, 400 amp rated circuit breaker, with an AIC rating of 65kA@480V and is manufactured by Schneider Electric and Square D. The MJA36400 uses a I-Line Style Plug-In connection and includes solid state protection. The trip unit features LI – Long-Time and Instantaneous functions.


Brand Square D
Series MJA
Amperage 400A
Voltage 600
Poles 3
Phase 3
Mounting Type Plug-On
Approval UL Listed, CSA Certified and IEC Rated
Mpn MJA36400

Shipping information

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Parcel shipments with item value over $200.00 qualify for free economy shipping within the continental US. Please indicate at checkout if USPS or UPS is a required shipment method. We do not charge a handling fee or require a minimum amount on any order. Breakers & Controls Florida does not ship on customer accounts.

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We strive to ship out your items the same day the order is placed. In rare circumstances Breakers & Controls Florida may reserve up to 5 business days to consolidate orders for complete shipment.

Warranty information

At Breakers & Controls Florida, we stand behind the quality and reliability of our products. We understand that purchasing used and obsolete breakers and controls requires confidence in their performance. Therefore, we have established the following warranty policy to ensure your satisfaction:

  1. Limited Warranty: All used and obsolete breakers and controls purchased from [Company Name] are covered by a limited warranty. This warranty guarantees that the products will be free from defects in material and workmanship under normal use and service for a specified period from the date of purchase.
  2. Warranty Period: The warranty period for used and obsolete breakers and controls may vary depending on the specific product and its condition at the time of purchase. The warranty duration will be clearly stated on the product listing or accompanying documentation. Please review the product description or contact our customer support team for the warranty period applicable to your purchase.
  3. Warranty Coverage: Our warranty covers the repair or replacement of defective parts or products at our discretion. If a covered product is found to be defective within the warranty period, we will either repair the product, replace it with an equivalent item, or provide a refund, depending on the availability of the specific product and the customer’s preference.

Additional information

Weight 37 lbs




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