What this breaker brings to the panel
The Schneider Electric C11F3TM100B is a ComPacT NSXm 3-pole moulded-case circuit breaker rated 100 A at 40 °C with a thermal-magnetic TM-D trip unit. It delivers a 36 kA interrupting capacity at 415 V AC (performance level F), which means it can clear a bolted fault up to that level without welding its contacts or cascading failure upstream — a solid fit for distribution panels where the available fault current sits in the 25–36 kA range. The breaker is listed under IEC 60947-2 (Category A) and carries an IP40 enclosure rating, so it's suited for installation inside a dry, indoor panel rather than a washdown environment.
The 9-module pitch (: 81 mm wide: 80 mm deep: 137 mm high) fits standard DIN-rail enclosures with a 35 mm spreader pitch; without spreaders the connection pitch is 27 mm. Front-facing upside and downside connections accept compression lugs or busbars — no special adapter required for copper or aluminium cable. The toggle control gives a clear visual indication of position, and the flag (green) signals presence of auxiliary contacts.
The 100 A rating at 40 °C is the continuous current the breaker can carry without tripping — factor in ambient derating if your panel exceeds 40 °C (the standard IEC 60947-2 derating curve applies). The 36 kA at 415 V AC is the short-circuit breaking capacity; for a 400 V system this gives solid headroom over a typical 25 kA SCCR requirement. Power dissipation per pole is 7.5 W, so three poles total 22.5 W heat to vent inside the enclosure — plan your cooling accordingly if the panel is densely packed. Electrical durability is 20,000 cycles at 440 V at rated current (In/2 for 10,000 cycles); mechanical durability matches at 20,000 cycles. That's a service life fine for distribution duty but not for frequent motor-starting applications — for that you'd want a higher-cycle contactor ahead of the breaker.