Schneider Electric M9F42140 Molded Case Circuit Breaker

Schneider Electric M9F42140 is a 1-pole, 40 A miniature circuit breaker from the Multi9 C60BP family, engineered to protect single‑phase distribution circuits from overloads and short circuits in electrical panels. It features a C‑curve trip characteristic and a 10 kA short‑circuit breaking capacity (UL489) and IEC/EN 60947‑2, with a 240 V AC rating suitable for standard commercial and industrial applications. This model is designed for DIN rail mounting as part of Schneider Electric’s Multi9 protection lineup and is commonly used to safeguard feeders, branch circuits, and control circuits in panel boards. With a 40 A nominal current and the compact single‑pole form factor, it offers reliable overcurrent protection while handling typical inrush loads in lighting, power distribution, and equipment enclosures.