Siemens 3VA1140-6ED32-0AA0-ZD00 is a 3-pole IEC frame 160 molded case circuit breaker with a 70 kA breaking capacity at 415 V (class H). It is configured for line protection with a TM210 thermal-magnetic trip unit, fixed overload protection set at In=40 A (Ir=40 A), and fixed short-circuit protection at Ii=10 x In. The unit includes a nut keeper kit and is designated for a DC Power OEM in China.
What the ratings mean for fit
The 70 kA Icu at 415 V means this breaker can safely interrupt fault currents up to that level without welding or rupturing — critical for high-fault-capacity installations like transformer secondaries or large motor control centers. The fixed 40 A overload (Ir) and 10x In short-circuit pickup (Ii=400 A) mean it is sized for a specific load, not adjustable in the field; verify your continuous load and available fault current before committing the BOM line. The 3VA1 frame accepts plug-in accessories (auxiliary switches, shunt trip, undervoltage release) common across the 3VA family, so panel integration follows the standard Siemens mounting footprint and busbar connection pattern.