The Siemens 3VA1220-5EF32-0CH0 is a 3-pole IEC molded case circuit breaker from the 3VA1 series, frame size 250, with a 200 A thermal-magnetic trip unit (TM240, ATAM).
Overload protection is adjustable: Ir from 140 A to 200 A, set via the TM240 dial on the front of the trip unit. That range covers a 200 A bus or a feeder to a 150–180 A continuous load with headroom. Short-circuit magnetic pickup Ii is fixed at 5 to 10 times In (1000–2000 A), which is a standard motor-start band — it rides out inrush from a 100–150 hp motor across-the-line but clears a hard fault fast.
The nut keeper kit (included in this variant) retains the line/load lug nuts during installation — saves a dropped-hardware delay on a panel build. The UVR coil is wired separately; verify the control transformer is sized for the inrush draw of the release coil at 120 V AC.
The IEC 60947-2 rating is the primary certification; UL 489 listing is typical for this frame but should be confirmed against the specific nameplate for projects requiring dual listing. No separate CE or UKCA mark is listed in the evidence, but the IEC designation implies CE conformity for European installations.