The Siemens 3VA1116-1AA32-0JA0 is a SENTRON switch disconnector in a 3VA IEC frame 160, 3-pole, rated 160 A continuous current (Iu). It is explicitly designed without overload or short-circuit protection — this is a disconnect-only device, not a molded case circuit breaker. The MCCB design form factor means it occupies the same panel footprint as a 3VA breaker, but the internal construction is a simple switch mechanism rated for isolation duty. Rated insulation voltage Ui is 800 V, with maximum operational voltage 690 V AC 50/60 Hz and 500 V DC. The shunt trip release (STL) is factory-fitted for 110-127 V DC/AC, enabling remote tripping.
Dimensions are 76.2 mm wide, 130 mm high, 70 mm deep — the same 3-pole width as a 3VA breaker in the 160 A frame. Main circuit connection is via busbar connection with front terminals; this is a fixed-front disconnect, not a plug-in unit. The busbar connection style means it's designed for a common busbar system within the panel, not for individual cable lugs on the line side. The wide storage range matters for spares held in unheated warehouses. The optional motor drive (product extension available) allows remote motorized operation if needed later.