What the ratings mean for fit
The Siemens SENTRON 3VA2010-6HN36-0AA0 is a 100 A molded case circuit breaker with an ETU350 electronic trip unit, built for line protection in 3-pole configurations. The 242 kA interrupting rating at 240 V and 187 kA at 415 V mean this breaker handles high-fault-current scenarios common in industrial distribution — think main or feeder duty where upstream transformer capacity can drive massive short-circuit current. The 100 A rating holds flat across the full -25 °C to 70 °C operating range, so no derating curve to chase in a warm panel.
Panel integration and mounting
The 3VA2010-6HN36-0AA0 measures 105 mm wide by 181 mm tall by 86 mm deep — a standard SENTRON 3VA footprint that fits existing 3VA panel cutouts and bus-bar arrangements. IP40 on the front means it's protected against solid objects larger than 1 mm; fine for a closed panel but not rated for washdown environments. An optional motor drive (Product Extension / Optional / Motor Drive: Yes) allows remote switching if the design calls for it.
Trip unit and coordination
The ETU350 electronic trip unit provides adjustable overload and short-circuit protection curves, which is what you want for selective coordination downstream of a larger feeder. Rated insulation voltage is 800 V, so it's comfortable on 480/277 V or 600 V systems. Maximum power loss is 13.5 W — a modest thermal load in a ventilated enclosure.