The Siemens SENTRON 3VA1220-4GF42-0BH0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 200 A at 40 °C through 50 °C, with a TM240 thermal-magnetic overcurrent release. Its interrupting capacity is 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V — figures that define the maximum fault current it can safely clear at each voltage level without upstream coordination failure. It is a 100%-rated N-conductor protection design, meaning the neutral pole is fully rated to carry the same current as the phase poles — no derating needed for 4-wire systems with high neutral harmonics.
Above that, it derates: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C.
The auxiliary trip accessory specified for this unit is order code 3VA9608-0BB11; if your BOM already includes that accessory, the fit is direct.