Square D PowerPact RJA36120CU31A R-Frame 3P 1200A MCCB I-Line 100%
3000A Frame | 1200A | 3P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic (MicroLogic 3.0)
The Square D PowerPact RJA36120CU31A is a premium R-Frame MCCB designed by Schneider Electric for heavy industrial and utility-scale circuit protection. This 3-pole device is rated at 1200A with 600V AC voltage capability and an interrupting capacity of 100kA@240V, 65kA@480V, 25kA@600V (High (J) interrupting class). It features a MicroLogic 3.0 electronic trip unit providing long-time and instantaneous overcurrent protection (LI), rated at 80% continuous current per NEC Article 240.6. The RJA36120CU31A 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. Engineers and contractors rely on the RJA36120CU31A for its proven track record of reliability, ease of installation, and comprehensive protection capabilities. Field-installable accessories include shunt trip coils, undervoltage releases, auxiliary switches, alarm contacts, and motor operators for remote operation. This configuration is suitable for both new installations and retrofit applications in existing switchgear and panelboard assemblies. Maintenance intervals are minimized through the use of high-quality internal components and arc-quenching chamber technology. The wire range accommodates Bus connection (RLTB kit) conductors for flexible installation options. Quick-make quick-break contact mechanisms ensure reliable interruption regardless of handle operating speed or force applied.
Key Features
This PowerPact MCCB features Electronic (MicroLogic 3.0) trip protection rated 1200A at 600V AC. Frame size: 3000A. 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.
