The Siemens 3VA1116-1AA46-0DC0 is a 4-pole switch disconnector in the 3VA1 IEC frame 160 series, rated at 160 A continuous current. It is configured as an SD100 — a disconnect switch without overload or short-circuit protection, meaning it provides visible isolation for a circuit but relies on upstream protective devices for fault interruption.
The 160 A rating is the continuous thermal current (Ith) for this frame size — it governs the maximum load the disconnect can carry without derating. Because it lacks overload protection, it is not a motor-protective device; use it strictly as a load-break switch or isolator where the downstream circuit has its own overcurrent protection. The two auxiliary switches provide electrically isolated NO/NC contacts for remote status monitoring.
Integration notes
Clamp-type terminals accept copper conductors without lug crimping — strip length and torque per the terminal marking on the device.