Square D PowerPact RJF36120CU43A R-Frame 3P 1200A MCCB 100%
3000A Frame | 1200A | 3P | 100kA@240V, 65kA@480V, 25kA@600V | Electronic (MicroLogic 5.0A)
The RJF36120CU43A is a high-capacity PowerPact R-Frame molded case circuit breaker from Schneider Electric's Square D product line, engineered for large-scale power distribution. 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 5.0A ammeter trip unit with LSIG protection plus integrated current measurement, rated at 80% continuous current per NEC Article 240.6. The RJF36120CU43A is equipped with busbar connection for direct mounting in power distribution switchgear. 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 RJF36120CU43A delivers the proven reliability and performance that engineers expect from the PowerPact platform. The wire range accommodates Bus connection (RLTB kit) conductors for flexible installation options. Physical dimensions of 14.88" H x 15.00" W x 7.00" D with an approximate weight of ~55 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 (MicroLogic 5.0A) 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.
