The Siemens 3VA2010-6HL32-0JA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C through 70 °C — no derating needed up to that ceiling. That flat thermal curve is the spec that decides the panel fill: if your bus is sized for 100 A and the enclosure runs warm, this breaker holds its rating without a bump in frame size. Three poles, line-protection design (not motor-protection curve), with an integrated shunt trip (STL) for remote tripping. The shunt trip is factory-fitted — no field-kit wiring, no auxiliary power module to source separately. If your safety circuit or emergency-stop chain requires a voltage-triggered opening, this variant delivers it out of the box. Breaking capacity is the other headline: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. The 3 kA at 690 V is a reminder that this is a 3-pole breaker on a 690 V line; if your system runs 690 V phase-to-phase, the interrupting rating drops sharply, so verify coordination with the upstream device.
Sourcing and lifecycle — active, no end-of-life signal
The shunt trip coil itself draws power only during the trip event, not continuously, so it adds negligible heat to the steady-state calculation.
That 86 mm depth is the front-to-back dimension including the arc chamber and terminals — important when the back panel has a gland plate or a rear-mounted busbar that limits protrusion. The 105 mm width is standard for a 3-pole 100 A frame in the 3VA2 family; it occupies three 35 mm DIN spaces if mounted on a DIN rail, or bolts directly to a mounting plate via the factory slots. The auxiliary release is a shunt trip (STL); verify the control voltage matches your trip circuit before wiring.