The G12T3F50: The 10 kA breaking capacity at 415 V AC (Icu) tells you this MCCB can safely interrupt fault currents up to that level without welding contacts or rupturing the case — critical for coordinating with upstream protective devices in a distribution panel. The TM-D trip unit's thermal element responds to sustained overloads (L protection), while the magnetic element clears short-circuits instantly (I protection).
Fixed mounting on a backplate with screw terminals front-connected on both line and load sides. The 75 mm width and 130 mm height fit standard distribution board cutouts; the 25 mm connection pitch matches common busbar systems. IP20 finger-safe terminals — fine inside a closed panel, not for wet areas.