What this MCCB is and where it lands
The Siemens SENTRON 3VA2010-6HN36-0AF0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, designed for line protection in distribution panels and industrial switchboards. It carries a 242 kA breaking capacity at 240 VAC, dropping to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V — so the interrupting rating is voltage-dependent, and the 690 V figure is the one to watch if you're on a 690 V corner-grounded delta or IT system. The rated insulation voltage is 800 V, which covers most low-voltage installations with headroom.
Fit and panel integration
Dimensions are 181 mm high, 105 mm wide, 86 mm deep. That 105 mm width is a standard 3-pole MCCB footprint for this current class — it fits the usual DIN-rail or panel-mount cutout without surprises. The auxiliary switch configuration is one auxiliary switch plus one trip alarm switch (HQ type), which gives you a separate signal path for remote status and a dedicated alarm contact on trip — useful for PLC or SCADA feedback without tying up the aux contact.
Thermal performance and power loss
The continuous current rating holds at 100 A across the full ambient temperature range from 40 °C through 70 °C — no derating needed up to that point. Maximum power loss is 13.5 W, which is modest for a 100 A MCCB and keeps the enclosure heat rise manageable in a crowded panel. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.