The Siemens SENTRON 3VA1112-5EF32-0CC0 is a 3-pole molded case circuit breaker (MCCB) rated for 125 A continuous at 40 °C, with a thermal derating curve that holds 125 A up to 50 °C, then steps down to 114 A at 70 °C — useful when the breaker shares a warm enclosure with other heat sources. Interrupting capacity is 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V, so it handles high-fault scenarios common in industrial switchboards without cascading upstream.
At 70 mm deep, 76.2 mm wide, and 130 mm tall, the breaker fits standard SENTRON 3VA panel cutouts and leaves room for side-by-side mounting in a distribution board.