What this MCCB carries and where it fits
The Siemens SENTRON 3VA2110-5HN32-0CC0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to 70 °C, which matters when this breaker sits in a warm panel near transformers or drives. Breaking capacity hits 187 kA at 240 V and 121 kA at 415 V and 440 V, so it handles high-fault-current service entrances or distribution points without cascading upstream. The design is line protection (not motor protection), with an undervoltage release built in and two HQ auxiliary switches for status feedback to a PLC or annunciator.
Breaking capacity across voltage levels
The interrupting rating drops with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. For a 480 V distribution panel the relevant figure is 121 kA — plenty of SCCR headroom for most industrial services.
Panel fit — dimensions and auxiliaries
Dimensions: 105 mm wide, 181 mm tall, 86 mm deep. Standard 3-pole MCCB footprint for DIN-rail or panel-mount installation. The built-in undervoltage release (UVR) and two HQ auxiliary switches reduce external wiring and panel clutter — the UVR drops the breaker if control voltage is lost, and the aux contacts report position back to the control system.