The Siemens 3VA1463-6EE32-0AA0-ZD00 is a 3VA1 IEC frame 630 molded case circuit breaker, 3-pole, with a breaking capacity class H rated at Icu=70kA at 415V AC. It carries a TM220 thermal-magnetic trip unit (ATFM) with an In=630A continuous rating, overload protection adjustable Ir=440A...630A, and fixed short-circuit protection Ii=8 x In. The suffix ZD00 indicates a nut keeper kit variant for DC Power OEM assembly in China.
The nut keeper kit (ZD00 suffix) secures the breaker for DC Power OEM applications in China, where vibration and transport stability matter during assembly. The TM220 thermal-magnetic trip provides line protection without external power — the overload band (Ir=440A...630A) lets you dial in the cable or busbar ampacity, while the fixed Ii=8 x In magnetic trip clears bolted faults fast enough for IEC 60947-2 coordination.