What this MCCB is and what the ratings mean for fit
The Siemens SENTRON 3VA2010-6HL32-0HH0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full operating temperature range from -25 °C to 70 °C — no derating needed up to 70 °C ambient. That 100 A holds at every 5 °C step from 40 °C through 70 °C, so it's sized for a 100 A feeder or branch circuit without thermal headroom concerns in a warm enclosure. The interrupting ratings are what decide the fit for available fault current: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. At 415 V, 187 kA covers most industrial service-entrance and large motor-control-center applications; at 690 V the 3 kA rating means it's not intended for high-fault 690 V distribution — that's a selectivity boundary to check against the transformer impedance and upstream breaker.
Line protection design and auxiliary options
This MCCB is designed for line protection — meaning it's configured to protect cables and busbars from overload and short circuit, not motor or generator circuits. It ships with a shunt trip release (STL) for remote tripping and carries 2 auxiliary switches plus 1 trip alarm switch (HQ designation), which gives three separate signal paths for status feedback to a PLC or annunciator panel. The trip indicator and voltage trigger are present, so you get local mechanical indication and the ability to wire a remote trip via the shunt release. No undervoltage release, no ground-fault monitoring, no communication function — this is a straightforward protective device, not a smart breaker.
Mounting dimensions and panel integration
The 3VA2010-6HL32-0HH0 measures 105 mm wide, 181 mm high, and 86 mm deep. That 105 mm width is the standard 3-pole MCCB footprint for the SENTRON 3VA platform — it occupies three 35 mm DIN-rail module spaces (roughly 105 mm total) and fits into the same cutout pattern as other 3VA frame sizes. The 86 mm depth means it protrudes less than 90 mm from the mounting surface, which is shallow enough for most 200 mm deep enclosures with the door closed. Panel builders should verify the shunt trip wiring clearance at the top of the breaker; the auxiliary switch terminals add about 10 mm to the overall height when wired.