The Siemens 3VA1116-5GF42-0AA0-ZD00 is a 4-pole IEC frame 160 molded-case circuit breaker with breaking capacity class M — rated Icu=55kA at 415V. It carries a TM240 thermal-magnetic trip unit, fixed at In=160A, with overload protection adjustable from 112A to 160A and short-circuit pickup Ii=5...10 x In. The N conductor is protected at 100%, and the unit includes a nut keeper kit; it is configured as a DC Power OEM variant for integration into equipment built in China.
The 4-pole construction and 100% N protection suit it for 3-phase + neutral systems where the neutral must be switched and protected equally.