The 70 kA SCCR at 415 V AC tells the coordination study that downstream devices see a hard current limit at that level — upstream breaker selection can be relaxed accordingly. Power dissipation per pole is 2.3 W, so three poles shed about 7 W into the enclosure; factor that into thermal rise calculations.
Mounts to a backplate (not DIN rail) — 81 mm wide, 137 mm high, 80 mm deep, occupying 9 module pitches at 9 mm each. Connection pitch is 35 mm with spreaders, 27 mm without. Terminals accept compression lugs or busbars; both line and load sides connect from the front. IP40 front panel protection, IK07 impact rating. Horizontal or vertical mounting, flat on the back.
Listed as current production — no phase-out notice on this code. The ComPacT NSXm platform is Schneider's compact MCCB line for 63 A frames; C11H3TM016B is a standard catalogue variant.