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. It carries a TM210 thermal-magnetic trip unit with fixed overload protection at Ir=160 A and fixed short-circuit protection set to Ii=10 x In (1600 A). The N conductor is unprotected, and the breaker includes a nut keeper kit — a variant configured for DC Power OEM assembly in China.
What the ratings mean for fit
The 36 kA Icu at 415 V defines the maximum short-circuit current the breaker can safely interrupt once — that is the ultimate breaking capacity, not the service rating. 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. The unprotected N conductor means the neutral pole does not have a trip element — it switches but does not protect against neutral faults, which is standard for line-side protection in TN systems where the neutral is bonded upstream.
Where it is used
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.