The Siemens SENTRON 3VA1010-2ED42-0BC0 is a 4-pole molded case circuit breaker rated for 100 A continuous current (Iu) with a TM210 thermal-magnetic release — the 210 frame size means the thermal element is fixed at 100 A, no external adjustment. It is a line-protection version, not a motor-protection or ground-fault variant, so it is sized for feeder and distribution circuits where the load is resistive or general-purpose, not for individual motor starting duty. The interrupting ratings climb to 52.5 kA at 240 V AC and 32 kA at 415 V AC, so it handles high-fault-capacity panels in industrial switchboards or building mains.
Above that, it steps down: 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. If the enclosure runs hot (say, next to a drive or transformer), factor the 55 °C column into your load schedule.
Factory-fitted with 2 auxiliary switches (HQ type — high-qualified, meaning higher reliability for signal circuits) and an undervoltage release (UVR).
The 101.6 mm width is a standard 4-pole MCCB footprint — it occupies four 25.4 mm (1-inch) module spaces on a DIN rail or panel-mount base. Front protection is IP40, so it is suitable for enclosed switchboards but not washdown areas. No N-conductor protection (the 4th pole is a switched neutral, not a protected pole).