The Siemens 3VA2110-6HN36-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection in distribution panels. It carries 100 A continuously across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling, which simplifies panel thermal budgeting. The 3-pole frame with ETU350 electronic trip unit gives you adjustable overload and short-circuit protection curves, so you can coordinate selectivity downstream without swapping hardware.
Breaking capacity and selectivity headroom
At 240 V this MCCB interrupts 242 kA — a figure that covers most utility transformer secondary faults without cascading upstream. At 415 V it still holds 187 kA, and at 690 V it drops to 3.7 kA, which is typical for a 100 A frame on a 690 V line. The high interrupting ratings at common low-voltage levels mean you can place this breaker close to the source in a high-fault-current panel and still maintain full selectivity with downstream 18 kA or 25 kA branch devices.
Panel integration and dimensions
The 3VA2110-6HN36-0AA0 measures 105 mm wide, 181 mm high, and 86 mm deep. That 105 mm width fits a standard 3-pole MCCB cutout in a distribution panelboard or switchboard. The IP40 front protection means it is suitable for indoor panel mounting where no water spray is expected. An optional motor drive is available for remote switching — the frame is prepared for it.