What this MCCB is and what the ratings mean for your panel
The Siemens 3VA1010-3ED36-0HH0 is a SENTRON molded case circuit breaker (MCCB) sized for line protection in distribution panels. Its 100 A rated continuous current (Iu) holds at ambient temperatures up to 50 °C before any derating kicks in — at 55 °C it still carries 96 A, and at 70 °C it's good for 90 A, so you don't lose headroom in a warm enclosure. The 3-pole design with a TM210 thermal-magnetic release handles overload and short-circuit protection in one package. Breaking capacity is the number that decides whether this breaker clears a fault without upstream damage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V. That 52.5 kA at 415 V is the figure most panel builders will check first for IEC 60947-2 coordination.
Panel fit and integration
The 3VA1010-3ED36-0HH0 measures 70 mm deep, 76.2 mm wide, and 130 mm high — a standard MCCB footprint that fits most DIN-rail or panel-mount enclosures without surprises. Front protection is IP40, meaning tools and fingers stay out but the unit is not sealed against washdown. It ships with a shunt trip (STL) auxiliary release and a 2-auxiliary-switch-plus-1-trip-alarm-switch HQ contact block, so you get remote trip indication and status feedback without adding a separate accessory module. The integrated auxiliary trip order code is 3VA9688-0BL30 if you need a replacement.