The Siemens SENTRON 3VA1110-5EF32-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated 100 A continuous at 40 °C, with an interrupting capacity of 187 kA at 240 V AC. The 100 A frame is thermally rated to carry full current up to 50 °C; above that it derates to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C, so for a 100 A load in a 60 °C panel you need to step up a frame size or accept the 96 A limit. This is a line-protection design (not motor-protective), so it is sized for feeder and distribution circuits rather than individual motor overload duty.
The 3VA1110-5EF32-0BH0 measures 130 mm high, 76.2 mm wide, and 70 mm deep. The 76.2 mm (3-inch) width for a 3-pole MCCB is standard for the 3VA frame — it occupies roughly 3 module spaces on a DIN rail. For a retrofit into an existing panel, the depth of 70 mm (2.76 in) is shallow enough to clear most enclosure doors without a deep gland plate.