What this MCCB is and what the ratings mean for fit
The SENTRON 3VA2110-5KP32-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling, which simplifies panel thermal budgeting. Breaking capacity hits 187 kA at 240 V and 121 kA at 415 V, so it handles high-fault utility feeds without cascading upstream. The line-protection design means it's tuned for cable and busbar protection, not motor overload curves. An undervoltage release (UVR) is built in, and the auxiliary switch complement — 2 auxiliary switches plus 1 trip alarm switch HQ — gives the PLC or BMS a clean status signal on trip and breaker position.
Panel fit and integration
Dimensions are 105 mm wide, 181 mm high, 86 mm deep — standard SENTRON 3VA form factor for 100 A frame. Mounts on DIN rail or panel-mount via the accessory kit. The communication function means it can talk to a higher-level system for metering or remote trip indication; the trip indicator gives a local visual. Power loss is 12.5 W max — negligible for enclosure thermal calculations at this frame size.