The Siemens 3VA2220-7MS32-0AA0 is a SENTRON molded case circuit breaker (MCCB) with a starter protection design, rated for a continuous current of 200 A across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. It carries a 3-pole configuration and uses an ETU310M electronic trip unit. The breaking capacity hits 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 5.2 kA at 690 V, so it handles high-fault-current industrial feeds where a standard MCCB would weld closed.
The 200 A continuous rating is flat from 40 °C to 70 °C — that means no thermal derating curve to calculate for a warm panel; the breaker delivers its full ampacity even at the upper end of the operating range. At 690 V the interrupting capacity drops to 5.2 kA, so for 690 V line-to-line applications verify that the prospective short-circuit current stays under that threshold. The ETU310M trip unit provides electronic overcurrent protection with adjustable settings — it is not a thermal-magnetic type, so coordination studies should use the ETU310M time-current curves.
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that fits most distribution panelboards and motor control center buckets. The maximum power loss is 46 W, which should be factored into enclosure thermal calculations.