160 A MCCB with Shunt Trip — Line Protection for High-Fault Panels
The Siemens 3VA1116-6EF36-0KA0 is a 3-pole SENTRON molded case circuit breaker rated 160 A continuous at 40 °C through 50 °C, with a TM240 thermal-magnetic release and an integrated shunt trip (STL) for remote tripping.
At 440 V the breaker still clears 75.6 kA, and at 500 V and 690 V it holds 17 kA — that SCCR curve covers most industrial distribution voltages. The TM240 release is fixed thermal-magnetic, not electronic, so coordination studies should use the manufacturer's time-current curves for selective tripping with downstream breakers.
The 160 A rating holds flat from 40 °C to 50 °C ambient, then derates to 150 A at 70 °C — useful when the breaker is inside a warm enclosure or near other heat sources. Maximum power loss is 38 W at rated load, which matters for enclosure thermal calculations in a multi-breaker panel.
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — standard 3-pole MCCB footprint for DIN-rail or panel-mount installation. The 3-pole block occupies three modular 25.4 mm spaces on a DIN rail.