What this MCCB carries and where it fits
The Siemens SENTRON 3VA2110-6HN32-0BL0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. It is designed for line protection, meaning it sits at the feeder or main distribution point in a panel, not downstream on a specific motor or branch circuit. Breaking capacity is the headline here: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. That 242 kA figure at 240 V is high for a 100 A frame — it handles high-fault utility feeds without needing a current-limiting fuse upstream. The drop to 3.7 kA at 690 V tells you this is a 600 V class breaker; at 690 V the arc extinction limits its interrupting ability, so verify the available fault current at your system voltage. Dimensions are 105 mm wide, 181 mm high, 86 mm deep — a standard MCCB footprint for a 100 A frame. It mounts on a DIN rail or direct-panel via the rear slots. The auxiliary switch complement is two auxiliary switches plus one trip alarm and one electrical alarm switch, all HQ type, giving remote status indication for the open/closed/tripped states.
Built-in undervoltage release and internal wiring
This order code includes an undervoltage release (UVR) as the auxiliary release. That means the breaker trips automatically when the control voltage drops below a threshold — standard for safety circuits where a loss of control power must open the main disconnect. The UVR is factory-integrated; no field kit to add. The basic switch inside is order code 3VA21106HN320AA0 — that is the internal switching mechanism. If you ever need to replace just the switch block (not the entire breaker), that is the part number to reference. The breaker itself has a trip indicator and no voltage-trigger or communication function; it is a straight electromechanical MCCB.
What the 100 A rating means in practice
The 100 A continuous rating is flat from 40 °C to 70 °C — no thermal derating curve to calculate for typical panel ambient. That is unusual for a compact MCCB; many competitors need a 0.8 derating factor at 60 °C. This one holds 100 A all the way. Power loss at full load is 12.5 W maximum, which is moderate for a 100 A frame and manageable in a closed panel. The closest functional sibling in the SENTRON family is the 3VA1110-5EF32-0AM0. That is also a 100 A, 3-pole MCCB but in the 3VA1 frame (compact, lower breaking capacity) versus this 3VA2 frame (higher interrupting ratings, more auxiliary options). The 3VA1110-5EF32-0AM0 will not drop into the same panel footprint without checking the mounting hole pattern and busbar spacing — the 3VA2 frame is physically larger (105 mm wide vs the 3VA1's 70 mm). If your panel was laid out for a 3VA1, this 3VA2 will not fit without re-drilling the backplate.
Environmental and compliance range
Operating temperature range is -25 °C to +70 °C; storage range is -40 °C to +80 °C. The storage minimum of -40 °C is the handling limit, not the running limit — the breaker can sit in a cold warehouse without damage. No ground-fault monitoring version is included; this is a straight overcurrent and short-circuit protection device.