The Schneider Electric C10W32D100 is a ComPacT NSX100HB2 molded-case circuit breaker — 3-pole, 100 A frame, with a MicroLogic 2.2 electronic trip unit. For a 690 V distribution panel, that's serious SCCR headroom; you can coordinate downstream breakers without worrying about upstream failure. The trip unit is MicroLogic 2.2, an electronic design with three protection functions: L (long-time overload), So (short-time short-circuit with fixed delay), and I (instantaneous short-circuit). That matters for motor starting or repeated inrush loads. The breaker is also certified for isolation per EN/IEC 60947-2, meaning you can use it as a visible disconnect without a separate switch.
Where it fits and how it mounts
Mounts on a backplate in either horizontal or vertical orientation, flat against the surface. Front connections top and bottom — the 35 mm connection pitch matches standard busbar and cable lug spacing. IP40 enclosure protection means it's fine in a clean indoor panel; IK07 impact rating handles accidental tool drops.
Durability and electrical life
Electrical durability varies with load: 20,000 cycles at 440 V at half rated current, 10,000 cycles at full rated current at 440 V, and 5,000 cycles at 690 V at full current. For a distribution breaker that sees infrequent switching, that's ample.