The Siemens 3VA1163-1AA32-0CA0 is a 3-pole switch disconnector from the SENTRON 3VA series, built in an MCCB-style frame (160 A frame) but configured purely as a disconnect — no overload or short-circuit protection.
Front terminals accept busbar connection; the switch is designed for DIN-rail or direct-panel mounting in a standard MCCB footprint. Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — the same width as a 3-pole 160 A frame breaker, so it drops into existing busbar layouts without re-spacing. IP40 on the front face suits enclosed distribution boards; no IP rating on the rear, so it needs a panel or enclosure backplane.
Rated insulation voltage is 800 V, operating voltage 690 V AC / 500 V DC — this switch disconnector is suitable for 400 V and 690 V line-to-line systems. Mechanical service life is 15,000 operating cycles typical; no electrical life figure is listed, but as a no-fault-break switch it is intended for infrequent load-break or isolation duty, not daily motor starting.