The Siemens SENTRON 3VA1116-3EF36-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated 160 A at 40 °C, with a breaking capacity of 75.6 kA at 240 V AC — sized for main feeder or large branch protection in industrial distribution panels. The TM240 thermal-magnetic trip unit provides fixed thermal and magnetic settings for overload and short-circuit protection, with no communication or ground-fault monitoring onboard.
Interrupting and thermal ratings
Breaking capacity drops across the voltage curve: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 / 690 V. That 11.9 kA floor at 690 V is the figure to check against available fault current on 690 V systems — if your SCCR study shows higher, this breaker isn't the right node. Rated insulation voltage is 800 V, so it's fine for 480/277 V and 600 V panels. Thermal derating is shallow: 160 A holds through 50 °C, drops to 158 A at 55 °C and 150 A at 70 °C. In a hot panel (say, 55 °C ambient), you lose 2 A — negligible for most loads, but a continuous 160 A load at 60 °C pushes the margin to 155 A. The undervoltage release (UVR) included in this code trips the breaker if control voltage drops, which is common for emergency-stop or safety interlock circuits.
Panel fit and integration
Dimensions: 130 mm high, 76.2 mm wide, 70 mm deep — standard 3-pole MCCB footprint for a 160 A frame. Mounts on a DIN rail or panel-mount base; the 70 mm depth (2.76 in) fits typical enclosure depths without crowding. No communication module, so all status is local via the trip indicator (none on this variant) or auxiliary contacts (not included here).