The MGN25148 is a C60H miniature circuit breaker from the Multi9 range, rated 32 A at 50 °C per EN/IEC 60947-2. Four poles protected, D curve — magnetic trip at 12 x In ±20 %, so it handles high inrush loads like motor starters and transformer primaries without nuisance tripping.
Rated Icu 30 kA at 240 V AC phase-to-phase, 15 kA at 415 V, and 10 kA at 440 V. Ics is 50 % of Icu at each voltage level — 15 kA / 7.5 kA / 5 kA respectively. That gives you headroom for fault coordination downstream in a distribution board.
Snaps onto 35 mm symmetrical DIN rail, fixed mounting. Tunnel terminals accept 1.5 to 35 mm² flexible or rigid — strip 14 mm, torque to 3.5 N·m. Occupies 8 x 9 mm pitches (72 mm wide).