The Siemens 3VA1116-1AA32-0AH0 is a SENTRON 3VA1 IEC-frame switch disconnector, rated 160 A continuous current (Iu) in a 3-pole configuration. The front busbar connection and IP40 front face suit it for panel mounting where the disconnect function is the requirement, not branch-circuit protection.
The 160 A rated continuous current (Iu) sets the maximum load this disconnect can carry continuously without exceeding its thermal limits. The 38 W maximum power loss at that rating means the panel designer needs to account for heat dissipation — not excessive for a 160 A device, but not negligible in a tightly packed enclosure.
The 3VA1116-1AA32-0AH0 mounts via the front terminal arrangement with busbar connection for the main current circuit. Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a compact footprint for a 160 A disconnect. It is a DIN-rail or panel-mount device depending on the adapter used; the 76.2 mm width corresponds to a 4-module width on standard 18 mm DIN-rail spacing.