What this MCCB delivers
The Siemens 3VA2010-6KP32-0AA0 is a 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. Its ETU850 electronic trip unit provides adjustable overload and short-circuit protection curves, designed for line protection duty in distribution panels. The 3-pole construction handles three-phase feeders, with a rated insulation voltage of 800 V. Breaking capacity is substantial: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. That SCCR range means this breaker can clear high-fault incidents in most low-voltage industrial distribution without cascading upstream — the 187 kA at 415 V covers typical European 400 V panelboard fault levels comfortably.
Dimensions and panel fit
Footprint is 105 mm wide by 181 mm tall by 86 mm deep. That 105 mm width is the standard 3-pole MCCB form factor for the 3VA platform — it occupies three 35 mm DIN-rail modules. The 86 mm depth means it clears most shallow enclosure back-panels; verify your gland plate clearance if the breaker mounts near the rear wall.
Trip unit and protection capabilities
The ETU850 electronic trip unit supports communication and additional measurement functions — it can report load current and event data over the integrated communication interface, which is useful for energy monitoring or predictive maintenance schemes. Ground-fault monitoring is not built in; that requires an external module or a different variant. Front protection is IP40, suitable for indoor panel installation where no washdown or dust ingress is expected. Power dissipation at rated current is 13.5 W maximum — factor that into your enclosure thermal budget, especially in densely packed panels with multiple breakers.