The Siemens SENTRON 3VA2110-7MS36-0AG0 is a 3-pole molded case circuit breaker rated for a continuous current of 100 A across the full 40 °C to 70 °C ambient range — no derating needed up to that temperature, which simplifies panel thermal budgeting. At 690 V the breaking capacity drops to 3.7 kA — that's the limit for 690 V line-to-line circuits, so if you're feeding a 690 V motor drive, verify the fault current at that point doesn't exceed this value.
Starter protection version — what that means on the line
This is the starter protection version of the 3VA2 frame, meaning it's configured for motor branch-circuit protection with the ETU310M release tuned for motor-starting inrush and overload profiles. Out here in the grease on a rotating-equipment route, that trip alarm is what tells you a motor locked rotor or a phase imbalance took out the breaker before you walk the whole line.
Physical fit — dimensions for panel layout
That 105 mm width for a 3-pole 100 A MCCB is standard for the SENTRON 3VA2 frame, so it drops into the same DIN-rail or mounting-plate footprint as other 3VA2 breakers. The 86 mm depth keeps the body behind the panel door without interfering with gland plates or busbar shrouds in most enclosures.