What this MCCB does and where it fits
The Siemens 3VA2010-6HL32-0AH0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its 242 kA breaking capacity at 240 V AC handles high-fault utility feeds, while the 3 kA at 690 V covers the low end for lightly loaded industrial lines. The 3-pole form factor with a trip indicator and two auxiliary switches plus one trip alarm switch (HQ) gives you remote status feedback without an add-on module. Panel builders: the 86 mm depth and 105 mm width fit standard MCCB mounting footprints; the 181 mm height clears most enclosure gland plates.
Breaking capacity and selectivity headroom
At 415 V and 440 V the breaker holds 187 kA — identical performance at both levels, which simplifies coordination studies for 400 V-class distribution. The 121 kA at 500 V still covers most industrial step-down transformers. That 3 kA at 690 V looks low, but 690 V applications typically use dedicated high-voltage breakers; this MCCB is sized for the 240–500 V sweet spot where fault currents run high.
Integration and environmental limits
Rated insulation voltage is 800 V. Operating temperature range -25 °C to 70 °C, storage from -40 °C to 80 °C. Maximum power loss 13.5 W. No undervoltage release, no ground-fault monitoring, no communication function.