What the ratings mean for fit
The Siemens SENTRON 3VA1116-6EF36-0KH0 is a 3-pole molded case circuit breaker rated 160 A at 40 °C — that's the continuous current it carries without tripping in a 40 °C ambient. At 70 °C it derates to 150 A, so if your panel runs hot, size up or verify the thermal curve. The interrupting ratings are the real story: 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. That 220 kA figure at 240 V means it can safely clear a fault of that magnitude without rupturing — critical for high-fault installations like transformer secondaries or large motor control centers where available fault current is high. The 800 V rated insulation voltage confirms it's built for 690 V systems with margin.
Deployment context
This MCCB is designed for line protection in distribution panels — it mounts on a DIN rail or panel base, and its 76.2 mm width (3 inches) fits standard 3-pole MCCB spacing. The 70 mm depth (2.76 in) and 130 mm height (5.12 in) mean it'll drop into most existing SENTRON or third-party enclosures without a footprint change. The 38 W maximum power loss at rated load is a consideration for thermal management inside a sealed cabinet — ensure ventilation or derating if multiple breakers are ganged.
Built-in auxiliaries and releases
This breaker ships with a shunt trip (STL) release and 2 auxiliary switches plus 1 trip alarm switch (HQ configuration). The shunt trip allows remote tripping via a control signal — useful for emergency-stop circuits or supervisory systems. The auxiliary switches provide status feedback (open/closed/tripped) to a PLC or indicator panel. No undervoltage release is fitted, so if you need UVR for undervoltage protection, you'll add that as a separate accessory.