The Siemens SENTRON 3VA2110-7MN32-0AE0 is a 3-pole molded case circuit breaker rated 100 A continuous, designed specifically for motor protection. It carries a 330 kA interrupting capacity at 240 V, stepping down to 242 kA at 415 V and 440 V, and 187 kA at 500 V — at 690 V it's 3.7 kA. That SCCR headroom means it can sit upstream of a motor starter in a high-fault panel without cascading failure, which keeps the machine running through a downstream fault.
This is the motor-protection variant of the 3VA2 frame. The closest sibling, 3VA2110-7HK42-0AA0, shares the same 100 A frame and 3-pole count but omits the motor-protection curve — it's a straight thermal-magnetic for general distribution. If your BOM calls for motor overload coordination (phase-failure detection is built into this unit,), the -7MN32-0AE0 is the correct fit; the -7HK42-0AA0 lacks that detection and the trip characteristic tuned for motor inrush.
Panel footprint: 105 mm wide, 181 mm tall, 86 mm deep. That 86 mm depth (3.39 in) is the dimension that matters for enclosure depth — a standard 200 mm deep panel has clearance for the rear arc chamber and wiring gutters. The breaker accepts up to four HQ auxiliary switches. No undervoltage release or shunt trip on this variant, so if you need remote trip, plan for an external UVR module.
Rated current holds flat at 100 A from 40 °C through 70 °C ambient — no derating needed in a warm panel. Maximum power loss is 10 W. Storage range spans -40 °C to 80 °C; operating range -25 °C to 70 °C. The trip indicator is not fitted on this order code, so visual trip status comes from the handle position only.