What this MCCB is and what it does
The Siemens SENTRON 3VA2110-6JQ46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, designed for line protection in distribution panels. Its interrupting capacity hits 242 kA at 240 V and 187 kA at 415 V and 440 V, dropping to 121 kA at 500 V and 3.7 kA at 690 V — that 242 kA figure at 240 V means it can clear a bolted fault on a large transformer secondary without the arc flashing over, which is the spec that decides whether this breaker holds coordination with the upstream main. The 100 A rating holds flat from 40 °C through 70 °C, so no derating headache in a warm enclosure.
Panel fit and integration
The 3VA2110-6JQ46-0AA0 measures 86 mm deep, 140 mm wide, and 181 mm high — that 140 mm width is the standard 4-pole MCCB footprint for a SENTRON panel, so it drops into the existing mounting base without re-drilling the gland plate. Rated insulation voltage is 800 V, and maximum power loss is 10 W, which keeps the thermal budget in a crowded enclosure manageable. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.
Communication and monitoring capability
This MCCB includes a communication function, which means it can report status and trip events to a higher-level control system — useful for a line that needs remote monitoring or predictive maintenance data. It does not have a local trip indicator or undervoltage release, so if you need visual confirmation of a trip at the breaker face, this isn't the variant; the communication link is how you'd get that signal. Ground-fault monitoring is via summation current formation on L + N conductor.