The Siemens SENTRON 3VA1116-5ED32-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated 160 A continuous at 40 °C, with a TM210 thermal-magnetic trip unit for line protection.
Current derating and thermal performance
Above that, derating is gradual: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. That means in a 50 °C enclosure — common in unventilated industrial panels — you still get full 160 A.
Interrupting capacity across voltage levels
At 440 V the breaker interrupts 75.6 kA; at 500 V and 690 V it holds at 17 kA. The steep drop above 440 V is typical for MCCBs with this frame size — the arc energy scales with voltage. For 480 V systems (common in North America), the 75.6 kA at 440 V is a conservative proxy; the 17 kA at 500 V covers the worst case. Selectivity studies should use the 500 V figure for 480 V coordination.
The 3-pole width (76.2 mm) is standard for this frame class — it occupies three 25.4 mm module positions on a DIN rail or panel-mount footprint. Depth of 70 mm leaves clearance behind a 200 mm deep enclosure door for wiring and the shunt trip accessory.