The Schneider Electric C10V3MA100 is a ComPacT NSX circuit breaker fitted with an MA magnetic-only trip unit, rated 100 A at 65 °C and designed specifically for motor protection — the MA trip responds to short-circuit current only, leaving thermal overload protection to an external relay or motor starter. That 85 kA Icu at 500 V AC (75 kA at 690 V) means it can safely interrupt a fault up to that level without welding contacts or cascading upstream, which matters when you're coordinating a motor branch circuit in a panel with high available fault current. It's a 3-pole (3P) device, suitable for isolation per EN/IEC 60947-2, with a toggle control and front connections on both the line and load sides — standard for panel-mounting on a backplate.
The 105 mm width, 161 mm height, and 86 mm depth fit a standard motor control center bucket or distribution panel. Connection pitch is 35 mm — matches common busbar and cable lug spacing.