Top Pick Square D NX361200 – 1200A 3 Pole Molded Case Circuit Breaker

Providing true RMS sensing, this 1200A electronic trip breaker ensures accurate overcurrent response for commercial facilities. The Micrologic Series B unit allows precise LSI tuning. Designed for legacy infrastructure, it connects securely into Square D I-Line panels. When substituting with the modern PowerPact PLA34120U33A, engineers should verify 600V fault current requirements. The N-frame construction delivers a robust 100kAIC interrupting capacity at 480V for demanding networks.