What it is and what the ratings mean
The Siemens 3VA1096-4ED32-0AA0-ZD00 is a 3-pole IEC frame 100 molded-case circuit breaker with a 16 A rated current (In) and a fixed overload setting (Ir=16 A). Its short-circuit release is fixed at 20 x In (320 A), so it clears faults fast without adjustment. The 36 kA Icu at 415 V puts it in breaking capacity class S — enough for most industrial distribution panels with moderate fault current. The TM210 trip unit is thermal-magnetic, line-protection, so it's sized for cable and busbar protection, not motor starting.
Where it fits and the OEM variant detail
This variant includes a nut keeper kit and is designated for a DC Power OEM in China — that means the breaker ships with hardware for panel-mounting in a DC power cabinet, but the breaker itself is AC-rated (415 V). It mounts on a standard DIN rail or can be screw-mounted via the frame lugs. The 3VA1 frame is compact for its 100 A frame size, leaving room in the enclosure for adjacent devices.