What this MCCB carries on the critical path
The Siemens SENTRON 3VA2010-5KP32-0AE0 is a 3-pole 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. Breaking capacity lands at 187 kA at 240 V AC and 121 kA at 415 V AC, which puts it squarely in the high-fault category for industrial distribution. The line-protection design means it's built for feeder and main breaker duty, not motor branch-circuit protection. Communication function is onboard, so it can talk to a BMS or PLC without an add-on module.
Panel fit and integration
Dimensions are 86 mm deep by 105 mm wide by 181 mm tall — a standard SENTRON 3VA footprint that drops into existing MCCB mounting bases without panel rework. The 3-pole block occupies one 105 mm-wide slot in a multi-breaker lineup. Power loss is 13.5 W maximum, so thermal rise inside a sealed enclosure stays manageable; just account for it in the heat budget. Operating temperature range is -25 °C to 70 °C, which covers most indoor industrial panels and outdoor cabinets in moderate climates.
Breaking capacity and selectivity headroom
The 187 kA at 240 V and 121 kA at 415 V ratings give this breaker enough interrupting capacity for service-entrance or main-switchboard positions where fault current is high. At 500 V it still holds 75.6 kA; at 690 V it drops to 3 kA — that last figure is the limit for a 690 V line, so verify the available fault current if feeding a 690 V bus. The 800 V rated insulation voltage confirms the internal clearances are sized for 690 V systems. Selectivity with downstream 3VA1 or 3VA2 breakers is achievable within the published coordination tables.
Auxiliary switch complement and trip indication
This variant ships with four HQ auxiliary switches — that's a full set for remote status monitoring of the main contacts. There is no undervoltage release and no ground-fault monitoring on this build, so if those functions are needed, they must be added externally or specified on a different order code. The trip indicator is absent, meaning the breaker does not have a mechanical flag showing whether it tripped on fault versus being manually opened — something to note for troubleshooting without opening the door.