SENTRON 3VA1220-5EF32-0HA0 — 200 A MCCB with Shunt Trip
Its TM240 thermal-magnetic release handles overloads and short-circuits up to 187 kA at 240 V, with the breaking capacity derating to 17 kA at 690 V. The integrated shunt trip (STL) allows remote tripping via a separate control voltage — useful for emergency-off or interlock circuits where you need to drop the main breaker without pulling the handle.
Thermal Derating and Breaking Capacity
Rated 200 A continuous at 40 °C, the breaker holds that rating through 50 °C before derating begins — at 55 °C it's 194 A, at 70 °C it's 176 A. That flat plateau to 50 °C is useful in warm enclosures without oversizing.
The 105 mm width (4.13 in) spans three pole modules; verify busbar or lug spacing matches your panel layout.
