Dimensions and panel fit
The 3VA2110-5HN32-0HL0: The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA form factor. That 105 mm width for a 3-pole unit means it occupies three 35 mm DIN-rail modules, so it slots into a panel without surprises. The 86 mm depth leaves room for wiring behind the breaker and still fits a 200 mm deep enclosure.
Auxiliary and release configuration
This variant ships with two auxiliary switches, one trip alarm switch, and one electrical alarm switch (HQ type) — so you get both status feedback and separate alarm contacts without adding external modules. The shunt trip release (STL) is built in, letting you remotely trip the breaker from a PLC or E-stop circuit. No undervoltage release or ground-fault monitoring on this version; if you need those, you're looking at a different suffix.