The Siemens 3VA1216-5GE42-0AA0-ZD00 is a 4-pole IEC frame 250 circuit breaker in the 3VA1 series, rated In=160A with a breaking capacity Icu=55kA at 415 VAC. It uses a TM220 thermal-magnetic trip unit with ATFM (adjustable thermal, fixed magnetic) — overload protection Ir adjustable from 112 A to 160 A, short-circuit protection fixed at Ii=10 x In. The N conductor is protected at 100%, meaning full-rated current through the neutral pole, not derated. A nut keeper kit is included for DC Power OEM builds in China.
Integration Notes
Mounts on standard DIN rail within an IEC enclosure. The 4-pole footprint and 160 A rating require adequate thermal derating space — adjacent breakers in a multi-unit panel should be gapped per Siemens mounting guidelines. The nut keeper kit is specific to DC Power OEM panel builds in China; verify gland plate clearance for the keeper hardware before laying out the back panel.