What this MCCB carries
The Siemens SENTRON 3VA2010-5KP32-0JH0 is a 3-pole molded case circuit breaker rated for 100 A continuous at 40 °C through 70 °C — no derating needed across that span, which simplifies panel schedules in warm enclosures. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V — that 187 kA figure at 240 V covers high-fault utility feeds and transformer secondaries where the available fault current is brutal. Line protection design means it's tuned for cable and busbar protection, not motor starting — pair it with a contactor for motor duty.
Panel fit and wiring
Footprint is 105 mm wide by 181 mm tall by 86 mm deep — standard 3-pole MCCB envelope for a 100 A frame; fits existing SENTRON or 3VA cutouts without panel rework. Comes with a shunt trip (STL) and two auxiliary switches plus a trip alarm switch (HQ) — the shunt trip lets a safety PLC or E-stop relay kill the breaker remotely; the alarm switch signals a trip event back to the control system. Communication function onboard — this variant talks to the plant network for power monitoring and remote reset, so it's not a dumb thermal-magnetic; it's a smart breaker in the SENTRON ecosystem.