The Siemens 3VA1196-4EF42-0AA0-ZD00 is an IEC frame 160 molded-case circuit breaker with a 36 kA interrupting capacity at 415 VAC — class S breaking capacity, meaning it handles the high fault currents typical of industrial distribution without cascading upstream. The 4-pole construction with an unprotected neutral conductor suits it for IT or TN-S systems where the neutral is not switched. The TM240 thermal-magnetic trip unit gives adjustable overload protection (Ir = 11 to 16 A) and fixed short-circuit protection (Ii = 10 to 20 × In), letting you dial in the actual load current on a 16 A frame.
Mounts in a standard panel on a DIN rail or screw-fixed baseplate. The 4-pole footprint matches the 3VA1 frame dimensions — verify the nut keeper kit (ZD00 suffix) is intended for DC Power OEM builds in China, so the hardware set may differ from standard 3VA1 units; confirm the accessory kit contents against your panel's gland plate and busbar arrangement before committing the assembly.