The Siemens SENTRON 3VA1110-4GD42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying 100 A continuously at 40 °C without derating. That 100 A holds steady up to 50 °C; above that, it tapers to 91 A at 70 °C — useful if the panel runs hot or sits near other heat sources. The TM210 thermal-magnetic release handles overloads and short-circuits, with interrupting ratings that climb to 121 kA at 240 V and still deliver 75.6 kA at 415 V, so it clears high-fault conditions without cascading upstream.
At 70 mm deep, 101.6 mm wide, and 130 mm tall, this MCCB fits standard panel layouts. No communication module onboard; if you need remote tripping or status feedback, the optional motor drive (listed as available) can be added later without pulling the breaker.