What the ratings mean for the panel
The Siemens SENTRON 3VA2110-5HN32-0AD0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat thermal curve simplifies panel schedules: one breaker covers the distribution bus regardless of enclosure heat rise, as long as you stay under 70 °C ambient. Its interrupting capacity hits 187 kA at 240 V and 121 kA at 415 V, which puts it squarely in the high-fault category for industrial mains or large sub-distribution boards. At 690 V the rating drops to 3.7 kA — still adequate for most 690 V motor circuits, but verify against your transformer impedance if you're feeding a high-fault 690 V bus. The 86 mm depth and 105 mm width fit standard Siemens SENTRON panel footprints. At 181 mm tall, it occupies the same vertical slot as other 3VA2 frame breakers, so swapping a 100 A unit into an existing SENTRON lineup doesn't require re-drilling the mounting plate.
Lifecycle and sourcing posture
The 3VA2110-5HN32-0AD0 is a line-protection MCCB (not a motor-protective breaker) with no undervoltage release, no shunt trip, and no communication module. It's a straight thermal-magnetic breaker for feeder or branch-circuit protection. The auxiliary switch option is factory-fitted as three HQ auxiliary switches.
Dimensional check for panel integration
At 86 mm deep, this breaker clears most 200 mm deep enclosures with room for rear-mounted busbars or cable ducts. The 105 mm width fits standard 3-pole MCCB cutouts in SENTRON distribution boards. Height of 181 mm matches the 3VA2 frame family, so a swap from a different 3VA2 rating requires no panel rework.