The SENTRON 3VA2110-5JP32-0JC0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across its entire ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. It's designed for line protection, meaning its primary job is to protect cables and distribution bus from short-circuit and overload faults in a main or feeder panel. Breaking capacity is the headline number here: 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. The shunt trip lets a PLC or safety relay command an immediate open, useful for emergency-stop chains or remote load shedding.
The 86 mm depth means it clears most standard enclosure back-panels without protruding into the wiring gutter. Power loss is listed at 10 W maximum — negligible for panel thermal budgeting, but worth noting if you're packing multiple breakers into a sealed, non-ventilated enclosure.
The supplied basic switch is order code 3VA21105JP320AA0 — that's the internal switching mechanism. If you're replacing just the switching core rather than the full breaker, that's the number to cross-reference.