What this MCCB carries
The Siemens SENTRON 3VA2110-6HN32-0DH0 is a 3-pole molded case circuit breaker rated for 100 A continuous current at 40 °C through 70 °C — no derating needed across that band, which simplifies panel schedules in warm enclosures. Breaking capacity hits 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 — the 690 V figure is the weak point; if your line side runs 690 V, verify the available fault current stays under 3.7 kA or step up to a higher-rated frame. This is a line-protection design (not motor-protection), so it's sized for feeder and distribution duty — not for direct motor overload curves.
Built-in auxiliaries and release
Factory-fitted with 2 auxiliary switches plus 1 trip alarm switch (HQ type), and an undervoltage release (UVR). That saves a panel-builder having to snap on separate accessory modules — the UVR drops the breaker on loss of control voltage, which is standard for emergency-stop chains and safety circuits. Power loss is 12.5 W maximum at rated load — negligible for thermal budgeting inside a sealed panel, but worth noting if you're packing multiple breakers in a small enclosure.
Physical fit and environment
Dimensions: 105 mm wide, 181 mm tall, 86 mm deep. That's a standard 3-pole MCCB footprint for the 100 A frame — it fits SENTRON mounting plates and most DIN-rail adapter kits without surprises. Runs from -25 °C to 70 °C ambient; storage from -40 °C to 80 °C. The trip indicator is present, so you get a visual flag on fault — no need to poke a meter into the panel to find a tripped breaker.