Overview
The LV432775 is a Schneider ComPact NSX400F 3-pole molded case circuit breaker rated 320 A with a 40 kA breaking capacity at 415 V AC, built to EN/IEC 60947. It carries a MicroLogic 2.3 M electronic trip unit providing L (long-time), So (short-time with fixed delay), and I (instantaneous) protection, plus a 20-minute thermal memory before and after tripping for motor starting duty.
Compared to the LV438720, a 2-pole 160 A unit with 10 kA IC, the LV432775 delivers 3 poles, double the current (320 A vs 160 A), and four times the breaking capacity (40 kA vs 10 kA) at 415 V AC — pick the LV432775 for three-phase motor feeders or high-fault panels where the LV438720's 2-pole frame and lower IC won't coordinate.