What it is and what it does
The SENTRON 3VA1116-1AA42-0HC0 is a 4-pole switch disconnector built in an MCCB (molded case circuit breaker) form factor, rated 160 A continuous at 40 °C with no derating needed up to 50 °C — it holds 160 A flat through that range, then tapers to 150 A at 70 °C. This is a pure disconnect — no overload or short-circuit protection inside. It is designed for manual load-break switching and isolation duty where the upstream protective device handles fault clearing. The shunt trip release (STL) allows remote tripping on a 12-30 V DC or 24 V AC control signal. Two built-in auxiliary switches (HQ type) provide status feedback for the open/closed position. Rated insulation voltage is 800 V, operating voltage up to 690 V AC or 600 V DC.
Mounting and panel fit
Front IP40 rated — suitable for enclosed panel mounting where no water spray is present. The optional motor drive (listed as optional extension) allows remote motorized operation if needed downstream.