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. This MCCB is designed for line protection and ships with an integrated undervoltage release (UVR), so it drops the load on loss of control voltage — no separate shunt trip module needed.
Panel Fit and Integration
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. Maximum power loss is 35.5 W; factor that into enclosure ventilation if the panel is densely packed.