What the ratings mean for your panel
The Siemens 3VA4140-6ED24-3AA0 is a 2-pole UL Frame 125 molded-case circuit breaker with a 65 kA interrupting capacity at 480 VAC — that is Class H breaking capacity, meaning it can safely clear a 65 kA fault without venting or cascading to upstream devices. The TM210 thermal-magnetic trip unit is set with a fixed Ir of 40 A (overload protection) and a fixed short-circuit pickup Ii of 10 x In, so it holds steady for motor inrush and trips fast on a bolted fault. This is a line-protection breaker, not a motor-circuit protector; the FTFM (fixed thermal, fixed magnetic) configuration means no field-adjustable dials — what you order is what you get.