SENTRON 3VA — 160 A, 4-Pole, 121 kA Breaking Capacity
The Siemens SENTRON 3VA1216-4EF42-0BA0 is a 4-pole molded case circuit breaker rated for 160 A continuous at 40 °C, with the full 160 A holding through 50 °C before it starts to derate — 156 A at 55 °C, 151 A at 60 °C, 147 A at 65 °C, and 142 A at 70 °C. Its interrupting capacity hits 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V — high-fault ratings that give you selectivity headroom in a main or feeder position without cascading upstream.
At 70 mm deep × 140 mm wide × 158 mm high, this 4-pole breaker fits standard SENTRON 3VA mounting footprints — compatible with the same busbar and accessory system as the rest of the series. The TM240 thermal-magnetic trip unit is fixed inside, so no field-interchangeable trip block — what you see is what protects the feeder.