The Siemens SENTRON 3VA1116-3ED22-0AA0 is a 2-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 160 A through 50 °C before the first derating step. At 70 °C it still holds 150 A — useful when the breaker shares a crowded enclosure with other heat sources. The TM210 thermal-magnetic overcurrent release handles the time-current curve; no undervoltage or ground-fault trip modules are integrated on this variant. Interrupting capacity hits 75.6 kA at 240 V AC and 52.5 kA at 415 V AC — enough for most industrial service-entrance or feeder duty where the available fault current is known. Front-face protection is IP40, so it keeps tools and dust out of the mechanism but is not sealed against hose-down. The 70 mm depth and 50.8 mm width fit a standard 2-pole MCCB footprint on the DIN rail; check gland-plate clearance for the rear terminals before committing the panel layout.
Thermal performance and panel integration
The breaker is rated for 160 A continuously from 40 °C up to 50 °C. Above that the thermal curve steps down: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. If your panel ambient runs above 50 °C, size the upstream conductor and bus for the derated value — the breaker will trip earlier than a 160 A label suggests. Rated insulation voltage is 500 V, operating voltage is 415 V AC or 250 V DC. Maximum power loss at rated load is 25.34 W — not negligible in a sealed enclosure; allow ventilation or a larger cabinet if multiple breakers are ganged. Storage range is -40 °C to 80 °C; operating ambient is -25 °C to 70 °C. The storage ceiling exceeds the operating ceiling — that limit governs handling during transport and warehouse idle, not running conditions.