The Siemens SENTRON 3VA2110-0MQ36-0AA0 is a 3-pole molded case circuit breaker (MCCB) purpose-built for motor protection, carrying a continuous current rating of 100 A flat across the full ambient range from 40 °C through 70 °C — no derating curve to chase. That thermal stability matters when the breaker lives inside a warm panel next to drives or transformers.
Breaking capacity and release
The electronic trip unit is an ETU860M with adjustable trip classes 10A, 10/10E, 20/20E, and 30/30E — you set the curve to match motor start profiles (pump, conveyor, compressor) without nuisance tripping on inrush.
Monitoring and communication
Communication function is present, so this breaker can report status and trip events to a higher-level control system — useful for a line that needs remote diagnostics or predictive maintenance logging. Other measurement functions are also onboard.
Motor power ratings
In AC-3 duty (squirrel-cage motor switching), the breaker handles 30 kW at 230 V and 55 kW at 400 V. That covers a wide range of standard three-phase motor frames in a single part number.
Front face is IP40 protected (tools and fingers stay out).