Switch Disconnector for Isolation Duty
The Siemens SENTRON 3VA1163-1AA32-0BA0 is a 3-pole switch disconnector in the 3VA1 IEC frame 160 platform, rated for a continuous current of 63 A. It is designed for isolation and switching of circuits where overload or short-circuit protection is handled upstream or by a separate device — note the product version is explicitly 'in MCCB design' but configured as a switch disconnector without integral overcurrent releases. Rated for AC operation up to 690 V and DC operation up to 500 V. Front terminal busbar connection is typical for panel-mounting on a busbar system.
Integration and Mounting Notes
IP40 front protection is suitable for indoor panel environments. Mechanical endurance is rated at 15 000 latching cycles — this is a switch disconnector, not a daily-duty contactor; expect it in isolation applications where it sees a few operations per shift or less.
Maximum power loss is 38 W — factor this into panel thermal calculations if multiple units are ganged in a sealed enclosure.