Motor protection MCCB — 200 A, adjustable trip class, high breaking capacity
The Siemens 3VA2220-7MN32-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed specifically for motor protection, rated at 200 A continuous current across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to 200 A at 70 °C, which simplifies panel sizing in warm enclosures. Its 3-pole construction and adjustable trip class (Tc CLASS 10A, 10E, 20E) let you match the overload curve to the motor's starting profile — 10A for fast-starting pumps, 20E for high-inertia loads like centrifuges or conveyors.
Breaking capacity by voltage — selectivity planning
Rated short-circuit breaking capacity varies by system 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. The 240 V figure covers most North American 277/480 V line-to-neutral faults; the 415/440 V numbers suit European 400 V networks. At 690 V the capacity drops sharply to 5.2 kA — verify coordination if the breaker feeds a 690 V drive input.
Panel fit and thermal management
Maximum power loss is 46 W at rated load, so account for that heat in the enclosure's dissipation budget, especially when grouping multiple breakers. The 200 A rating holds across the full operating band, no derating curve to track.