The Siemens 3VA1020-2ED32-0AA0-ZD00 is a 3-pole IEC frame 100 circuit breaker with a fixed 20 A thermal-magnetic trip unit (TM210, FTFM). The short-circuit protection is set at 16 x In (320 A magnetic pickup), which is typical for motor-circuit coordination in IEC 60947-2 applications.
The 3VA1 frame accepts busbar connectors and accessory kits (shunt trip, auxiliary contacts, undervoltage release) that clip into the side slots without increasing the pole pitch. For a 20 A feeder on a 415 V line, verify the downstream cable cross-section matches the 20 A overload setting — the Ir is fixed at In, so no adjustment range exists.