Square D RJA36120CU31A Circuit Breaker, 1200A, 3-Pole

Meet the Square D RJA36120CU31A circuit breaker—a rugged, industrial-grade protective device engineered for high-demand electrical systems. With a 1200 A rating and a 3-pole design, it provides robust overcurrent protection for three-phase circuits in service, maintenance, and replacement projects.

To ensure a precise fit, verify compatibility using the part number RJA36120CU31A and your application requirements. If you need help matching a part number or confirming compatibility, message us and we’ll help.

• High-current capability: 1200 A rating supports large, demanding loads, helping prevent nuisance trips in critical equipment.
• Three-pole configuration: Ideal for three-phase systems, delivering synchronized protection across all phases for reliable shutdowns.
• Industrial-grade reliability: Built for continuous-duty environments, reducing maintenance intervals and downtime.
• Efficient maintenance and replacement: Designed for straightforward integration into service and retrofit projects with minimal downtime.
• Clear part identification: Exact part number RJA36120CU31A aids quick verification and reorder accuracy in spare-part inventories.

Ideal for manufacturing facilities, large commercial installations, and any operation relying on high-current three-phase distribution. This breaker acts as a critical protection link, enabling fast isolation of faulted circuits and safeguarding valuable equipment from damage.

Practical notes: always verify fit by part number and application requirements. Use the RJA36120CU31A to confirm compatibility, and if you need help, reach out with your questions—we’re ready to assist.