Square D PowerPact PJA36400U44A P-Frame 3P 400A MCCB I-Line 80%
1200A Frame | 400A | 3P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic (MicroLogic 6.0A)
The PJA36400U44A is a versatile PowerPact P-Frame molded case circuit breaker from Schneider Electric's Square D product line, designed for high-performance power distribution. This 3-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 MicroLogic 6.0A power meter trip unit with LSIG protection plus voltage, power, and energy metering, rated at 80% continuous current per NEC Article 240.6. The PJA36400U44A 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 PJA36400U44A delivers the proven reliability and performance that engineers expect from the PowerPact platform. The PowerPact platform supports a comprehensive range of accessories for enhanced functionality, monitoring, and communication capabilities. Physical dimensions of 10.04" H x 9.00" W x 5.79" D with an approximate weight of ~18 lbs ensure compatibility with standard enclosures. All terminal connections are designed for easy installation and reliable long-term performance under continuous operating conditions. This configuration is suitable for both new installations and retrofit applications in existing switchgear and panelboard assemblies.
Key Features
This PowerPact MCCB features Electronic (MicroLogic 6.0A) trip protection rated 400A at 600V AC. Frame size: 1200A. 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.
