The Schneider C11F3TM025B is a ComPacT NSXm 3-pole thermal-magnetic circuit breaker rated 25 A at 40 °C. That's selectivity headroom you can use. The TM-D trip unit uses a thermal-magnetic curve — thermal for overload, magnetic for short-circuit.
Mounting and fit
Mounts on a backplate — not DIN rail — so it's a screw-down job into the panel. 81 mm wide, 137 mm tall, 80 mm deep. 9 module pitches at 9 mm each. Connection pitch is 35 mm with spreaders, 27 mm without. IP40 enclosure rating means it's fine inside a cabinet but not for washdown. IK07 impact protection handles the odd dropped tool during commissioning. Toggle control, front connections top and bottom, compression lug or busbar terminals. The green flag signals when auxiliary contacts are present — handy during panel checkout without pulling the cover.