What this MCCB carries and where it fits
The Siemens 3VA2110-5KP46-0AA0 is a 4-pole SENTRON molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That makes it a line-protection MCCB you can spec into a panel and forget about thermal re-rating as the cabinet warms up. The ETU850 electronic trip unit handles the overcurrent curve; communication function is built in for remote monitoring or integration into a plant-wide power management system.
Breaking capacity across voltage levels
This MCCB delivers 187 kA at 240 V, 121 kA at both 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. Those are the interrupting ratings that decide whether the breaker clears a fault without upstream fuses or another breaker having to open. At the common 415 V industrial distribution level, 121 kA covers high-fault scenarios like transformer secondaries or large motor banks.
Panel fit and environmental limits
Dimensions are 86 mm deep, 140 mm wide, 181 mm high — a 4-pole MCCB that fits standard switchboard mounting. Front protection is IP40, so it's fine in a clean indoor panel but not for washdown areas. Operating range is -25 °C to 70 °C; storage from -40 °C to 80 °C. Power loss is 10 W maximum, which matters for thermal calculations in a densely packed enclosure.