The Siemens SENTRON 3VA2010-7JQ46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, with an insulation voltage of 800 V. Its interrupting capacity reaches 330 kA at 240 V and 242 kA at 415 V, dropping to 3 kA at 690 V — so it handles high-fault scenarios on the low-voltage side but is not intended for 690 V primary protection. The breaker is designed for line protection and includes a ground-fault monitoring function using summation current formation on L+N conductors.
Current rating and thermal performance
Rated 100 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat curve is unusual; many breakers start tapering above 40 °C. Power loss is 7.7 W maximum, manageable in a sealed enclosure if airflow is adequate.
Lifecycle and sourcing
Listed as current production — no end-of-life notice on this variant. The part is sourced to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time. If you are stocking a critical spare for a legacy SENTRON panel, this one is still in the catalog and should be orderable without a last-time-buy scramble.
Panel fit and dimensions
Dimensions: 181 mm high, 140 mm wide, 86 mm deep. That 140 mm width on a 4-pole MCCB is compact for the class — check your existing DIN-rail or mounting-plate spacing before committing the BOM. The 86 mm depth leaves room for rear-connected busbars in a standard 200 mm deep enclosure.
Communication and monitoring
Includes a communication function — the evidence does not specify the protocol, but the SENTRON 3VA platform typically supports PROFIBUS or PROFINET via a communication module. The ground-fault monitoring uses summation current on L+N, so it detects residual currents without a separate core-balance CT. No undervoltage release or trip indicator on this variant.