The Siemens SENTRON 3VA2010-5HN32-0JC0 is a 3-pole 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 187 kA interrupting capacity at 240 V AC handles high-fault utility feeds; at 415/440 V it still breaks 121 kA, dropping to 75.6 kA at 500 V and 3 kA at 690 V. The breaker ships with a factory-installed shunt trip (STL) and two auxiliary switches (HQ), so you get remote trip capability and status feedback without an add-on kit.
Panel Fit & Integration
The breaker footprint is 105 mm wide, 181 mm tall, 86 mm deep — standard for the SENTRON 3VA frame. It mounts on a DIN rail or panel-mount plate; the 3-pole design and integral shunt trip mean you wire the trip coil directly to a remote emergency-stop or undervoltage circuit without extra enclosure space.
Breaking Capacity & Selectivity
The 187 kA at 240 V is the headline number, but the 121 kA at 415 V is what matters for most European and Asian industrial panels — it lets this breaker sit upstream of smaller MCCBs in a selective-coordination scheme without cascading. At 690 V the 3 kA rating limits it to low-fault applications; for high-voltage motor circuits you'd step to a larger frame.