What this 3VA1 breaker carries
The Siemens 3VA1180-5GD42-0AA0-ZD00 is a 4-pole IEC frame 160 molded-case circuit breaker with an 80 A rating and a 55 kA breaking capacity at 415 V (class M). That Icu figure means it can safely interrupt a fault up to 55 kA without welding or rupturing — critical for high-fault panels where a lower-rated breaker would cascade upstream. Protection is handled by a TM210 thermal-magnetic trip unit with fixed overload Ir=80 A and fixed short-circuit pickup Ii=10 x In (800 A). The neutral conductor is protected at 100%, and the FTFM (fixed thermal, fixed magnetic) design means no field-adjustable dials — what you order is what you get for coordination studies.