The Siemens SENTRON 3VA1010-2ED42-0HA0 is a 4-pole molded case circuit breaker (MCCB) sized for line protection, rated 100 A continuous at 40 °C — no derating needed until you push past 55 °C, where it steps down to 98 A, then 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. That thermal curve means it handles a full 100 A in a reasonably ventilated panel without tripping early on a warm day.
Breaking capacity and release
Interrupting ratings climb with voltage: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V. That 52.5 kA at 240 V gives you serious fault-clearing headroom on low-voltage distribution — enough to ride through a high-fault utility feed without upstream coordination headaches. It ships with a TM210 thermal-magnetic overcurrent release (fixed thermal, magnetic pickup at 10× In) and a shunt trip (STL) auxiliary release for remote or emergency tripping. Rated insulation voltage is 800 V, and maximum power loss hits 25 W under full load — a number to watch if you're packing several breakers in a sealed enclosure.
Mechanical footprint: 130 mm high, 101.6 mm wide, 70 mm deep. That 70 mm depth means it fits standard panel-mounting depths without protruding into the wiring gutter — no need to shuffle busbars or bend cables around a deep can.