Square D PowerPact PKA36400U33A P-Frame 3P 400A MCCB I-Line 80%
1200A Frame | 400A | 3P | 65kA@240V, 50kA@480V, 50kA@600V | Electronic (MicroLogic 5.0)
The PKA36400U33A 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 65kA@240V, 50kA@480V, 50kA@600V (Extra-High (K) interrupting class). It features a MicroLogic 5.0 electronic trip unit with long-time, short-time, instantaneous, and ground fault protection (LSIG), rated at 80% continuous current per NEC Article 240.6. The PKA36400U33A 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 PKA36400U33A 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. Field-installable accessories include shunt trip coils, undervoltage releases, auxiliary switches, alarm contacts, and motor operators for remote operation. The breaker operates reliably at ambient temperatures up to 40 degrees Celsius per UL and IEC standards. This configuration is suitable for both new installations and retrofit applications in existing switchgear and panelboard assemblies. The device features a visible trip indication mechanism and positive contact position indicator for enhanced operational safety.
Key Features
This PowerPact MCCB features Electronic (MicroLogic 5.0) trip protection rated 400A at 600V AC. Frame size: 1200A. Interrupting capacity: 65kA@240V, 50kA@480V, 50kA@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.
