SENTRON 3VA1 molded case circuit breaker, 160 A, shunt trip
Siemens 3VA1216-5EF32-0KA0 is a SENTRON 3VA1 MCCB rated 160 A at 40 °C, 3-pole, with TM240 release and shunt trip (STL). Rated insulation voltage is 800 V, and the breaker maintains full 160 A current rating through 50 °C, derating to 156 A at 55 °C and 142 A at 70 °C. Maximum power loss is 33 W.
The 105 mm width occupies a standard three-pole MCCB footprint; verify the existing panel cutout accommodates the 158 mm height and 70 mm depth before ordering. The shunt trip (STL) requires a separate control voltage — confirm polarity and voltage rating from the auxiliary release datasheet, as the shunt trip coil is polarity-sensitive. The TM240 release is not field-interchangeable; the breaker is ordered as a complete assembly.
Interrupting capacity by voltage
Interrupting capacity varies significantly with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. For 480 V applications (common in North America), the 75.6 kA at 440 V is the closest published figure — actual 480 V performance is not listed but typically interpolates between the 440 V and 500 V values. Selectivity coordination studies should use the published values for the specific system voltage.