Square D PowerPact MJA264002 M-Frame 2P 400A MCCB I-Line
800A Frame | 400A | 2P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic (ET1.0 Fixed)
The MJA264002 is a robust PowerPact M-Frame molded case circuit breaker engineered by Schneider Electric's Square D division for demanding industrial applications. This 2-pole device is rated at 400A with 600V AC voltage capability and an interrupting capacity of 100kA@240V, 65kA@480V, 25kA@600V (High (J) interrupting class). It features a ET1.0 electronic trip unit providing basic overcurrent protection with adjustable settings, rated at 80% continuous current per NEC Article 240.6. The MJA264002 is featuring I-Line plug-in mounting for rapid installation and maintenance in Square D I-Line panelboards and switchboards. This breaker is UL 489 listed and CSA certified with dual UL/IEC ratings, ensuring compliance across North American and international installations. Ideal for industrial power distribution and similar applications, the MJA264002 delivers the proven reliability and performance that engineers expect from the PowerPact platform. The wire range accommodates 1/0-500 kcmil Al/Cu conductors for flexible installation options. Physical dimensions of 10.04" H x 9.00" W x 5.79" D with an approximate weight of ~16 lbs ensure compatibility with standard enclosures. The breaker operates reliably at ambient temperatures up to 40 degrees Celsius per UL and IEC standards. Field-installable accessories include shunt trip coils, undervoltage releases, auxiliary switches, alarm contacts, and motor operators for remote operation. The PowerPact platform supports a comprehensive range of accessories for enhanced functionality, monitoring, and communication capabilities.
Key Features
This PowerPact MCCB features Electronic (ET1.0 Fixed) trip protection rated 400A at 600V AC. Frame size: 800A. Interrupting capacity: 100kA@240V, 65kA@480V, 25kA@600V. Designed for reliable overcurrent protection in industrial and commercial power distribution systems.
Applications
Suitable for main distribution panels, motor control centers, switchboards, and feeder circuit protection in industrial facilities, data centers, and commercial buildings. Compliant with UL 489, CSA C22.2 No.5, IEC/EN 60947-2, NOM, CCC, CE.
