What this 200 A MCCB actually delivers
The Siemens SENTRON 3VA1220-4GF42-0DC0 is a 4-pole molded case circuit breaker rated for 200 A continuous at 40 °C, with a 70 mm depth, 140 mm width, and 158 mm height that fits standard panel layouts. The 200 A rating holds through 50 °C — no derating needed up to that point — then steps down to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C, so you can size the breaker for a 200 A bus and still get full capacity in a ventilated enclosure. Breaking capacity is what decides whether this breaker clears a fault without welding its contacts or blowing apart. At 240 V it interrupts 121 kA; at 415 V it handles 75.6 kA; at 440 V it's 52.5 kA; at 500 V it's 17 kA; and at 690 V it's 11.9 kA. That 121 kA at 240 V covers high-fault utility feeds and transformer secondaries where the available short-circuit current is stiff. The 690 V rating is lower but still adequate for most 690 V motor circuits in mining or marine applications. This is a line-protection design (not a motor-protector) with an undervoltage release built in — the UVR trips the breaker when control voltage drops below the dropout threshold, which is common in emergency-stop chains or safety circuits that need a loss-of-voltage trip. It comes with two HQ auxiliary switches for status feedback to a PLC or annunciator panel. Rated insulation voltage is 800 V, so the breaker is suitable for 690 V systems with margin. Power dissipation at full load is 44.5 W — that's the heat you need to vent from the enclosure, not a trivial number when you're packing multiple breakers in a row.
What the approvals tell you
The SENTRON 3VA series carries UL 489, CSA C22.2 No. 5, and IEC 60947-2 certifications, so it's accepted in North American and IEC panels without a separate evaluation. The 800 V rated insulation voltage and the listed breaking capacities at 240 V through 690 V confirm it's designed for global voltage standards.