What the ratings mean for your panel
The Siemens SENTRON 3VA2010-6KQ36-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated at 100 A continuous at ambient temperatures from 40 °C up to 70 °C — meaning no derating is needed across the typical panel temperature range. The breaking capacity is 242 kA at 240 V AC, dropping to 187 kA at 415 V and 440 V, and 121 kA at 500 V; at 690 V it still interrupts 3 kA. That 242 kA figure at 240 V is well above most utility fault levels, giving you selectivity headroom for downstream breakers without cascading. The unit includes a shunt trip (STL) auxiliary release and a communication function, so it can be integrated into a remote-trip or energy-management scheme. Insulation voltage is rated 800 V, covering most low-voltage distribution systems.
Mounting and panel integration
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep. It mounts on a DIN rail or directly to a backplate via the standard SENTRON footprint. The 3-pole form factor fits a standard 3-module MCCB slot. The shunt trip wiring and communication bus (if used) occupy the auxiliary terminal space on the left side — plan for a 10 mm clearance on that side for cable bending radius.
Ground-fault and monitoring features
The breaker includes a ground-fault monitoring version using summation current formation on the L-conductor, so it detects residual currents without an external core-balance transformer. The communication function and other measurement function allow integration into a higher-level monitoring system — useful for predictive maintenance or energy accounting on a feeder. Power loss is 13.5 W maximum, which is modest for a 100 A MCCB and keeps the panel heat rise manageable.