The Siemens 3VA1116-4ED42-0AA0-ZD00 is a 4-pole IEC frame 160 molded case circuit breaker with breaking capacity class S, rated for an Icu of 36 kA at 415 VAC.
For repeated fault clearing, the Ics (service breaking capacity) is typically 75–100% of Icu on Siemens 3VA1 class S breakers, but this variant's Ics is not separately stated. The TM210 thermal-magnetic trip gives a fixed thermal pickup at 160 A and a magnetic instantaneous trip at 10x In, so it responds to sustained overloads via the bimetal element and to short-circuit currents above 1600 A via the solenoid.
This breaker is sized for main or feeder protection in 415 VAC three-phase distribution panels, typically in OEM switchboards or industrial power supplies where a 160 A fixed trip and 36 kA fault current capability are required. The nut keeper kit and DC Power OEM designation suggest it ships as a component for integrators building DC power systems in China — the breaker itself is an AC-rated device, but the accessory kit and packaging are tailored for that assembly line.