Breaking capacity and protection curve
This 3VA1163-6ED42-0AA0-ZD00 is a 4-pole IEC frame 160 molded case circuit breaker with a 70 kA interrupting capacity at 415 V (breaking capacity class H). The 70 kA rating means it can safely clear a fault up to that level without upstream cascading — critical for high-fault panels fed by large transformers or close-coupled generators. Overload protection is set by a fixed TM210 thermal-magnetic trip unit: Ir = 63 A fixed (no adjustment), short-circuit pickup Ii = 10 × In = 630 A. The fixed Ir suits dedicated loads where the breaker is sized to the conductor, not to a variable motor FLA. The 10 × In magnetic pickup rides through moderate inrush on resistive or lightly inductive circuits. The N conductor is unprotected — the fourth pole is a switched neutral without overload or short-circuit protection. This is standard for TN-C or TN-S systems where the neutral is bonded to earth at the source and does not require overcurrent protection. The nut keeper kit (included) is specified for DC Power OEM applications in China, indicating this variant ships with hardware for panel builders assembling DC distribution.
Panel integration and mounting
Mounts in a standard 3VA1 screw-fixed or plug-in base (not included). The 4-pole footprint occupies 4 × 27 mm per pole — roughly 108 mm wide on the DIN-rail adapter plate. Verify the gland plate cutout for the line and load terminals; the breaker accepts Cu/Al conductors up to 50 mm² for the main circuit.
Lifecycle and sourcing posture
Lifecycle stage is listed as current — this is an active, in-production order code from Siemens. No PCN or EOL notice is on record for this specific variant.