The Siemens SENTRON 3VA2220-7MQ32-0AA0 is a 3-pole molded case circuit breaker rated for 200 A continuous current at 40 °C through 70 °C — no derating needed across that span. It is purpose-built for motor protection, with phase failure detection and ground-fault monitoring via summation current formation on the L-conductor.
Interrupting capacity by system voltage
Interrupting capacity varies sharply with line voltage: 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. That 690 V figure is the hard ceiling — if your motor circuit runs at 690 V, verify the available fault current stays under 5.2 kA or step up to a higher-rated frame.
Built-in intelligence for a motor branch
This breaker includes a communication function and an 'other measurement function' — meaning it can report status and measured values to a controller, not just trip. The ground-fault monitoring uses summation current formation on the L-conductor, so you get GF protection without a separate module. Phase failure detection is standard. No undervoltage release fitted from the factory.
Physical fit and environment
Dimensions: 105 mm wide, 181 mm tall, 86 mm deep. That 105 mm width is the key panel-space number — three of these side by side take 315 mm of DIN-rail or mounting-plate width. Operating temperature range -25 °C to 70 °C; storage from -40 °C to 80 °C. Maximum power loss is 46 W, so factor that into enclosure thermal calculations if you are grouping several breakers.