The Siemens 3VA1163-4ED32-0AA0-ZD00 is a 3-pole IEC frame 160 molded case circuit breaker rated 63 A with a breaking capacity of 36 kA at 415 V (class S). It is configured for line protection with a TM210 thermal-magnetic trip unit — overload protection set fixed at Ir = 63 A, short-circuit protection fixed at Ii = 10 × In. The unit includes a nut keeper kit and is designated for DC Power OEM applications in China.
Breaking capacity and coordination
The 36 kA Icu at 415 V places this breaker in the S breaking capacity class, meaning it can interrupt fault currents up to that level without welding or damage. For a 63 A frame, that gives substantial headroom over typical industrial fault levels — useful for main or sub-feed distribution where high short-circuit current is expected.