The Siemens 3VA1116-1AA36-0AD0 is a SENTRON 3VA1 IEC frame 160 switch disconnector rated for 160 A continuous current (Iu) in a 3-pole configuration. It is designed as a pure disconnecting means — no overload or short-circuit protection onboard — so it functions as a load-break switch in distribution or motor feeder circuits where protection is handled upstream or by a separate device. The front terminal connection accepts clamp-type wiring, and three built-in auxiliary switches (HQ type) provide status feedback to a PLC or indication panel.
What the ratings mean for fit
The 160 A rated continuous current (Iu) sets the maximum uninterrupted load this switch can carry in free air at 40 °C ambient. Because it lacks an overcurrent release, the continuous rating is the only thermal limit — no trip curve to coordinate. The 690 V AC (50/60 Hz) and 500 V DC maximum operational voltages cover standard 400/480 VAC distribution and many DC bus applications up to 500 V. The 70 mm depth, 76.2 mm width, and 130 mm height match the 3VA1 frame footprint, so it occupies the same panel cutout as a 3VA1 MCCB of the same frame size.
Integration notes
The IP40 front protection means the operator interface is protected against tools and small wires but not against water ingress — suitable for indoor panel mounting, not washdown environments. The three auxiliary changeover contacts (CO) are wired via the front terminal block and can be used for remote status indication or interlocking. No undervoltage release or communication function is fitted, so this is a straightforward manual switch disconnector with no electronic trip unit or network connectivity. An optional motor drive can be added via the product extension slot for remote operation.