What this 3VA1 breaker carries
The Siemens 3VA1180-4GD42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker in breaking capacity class S, rated 80 A with a fixed thermal-magnetic TM210 release. Overload protection Ir is fixed at 80 A; short-circuit protection Ii is fixed at 10 × In. The interrupting rating hits 36 kA at 415 V — that is the Icu, the ultimate breaking capacity the breaker can clear once and remain functional for follow-on switching. Class S means this sits in the middle of the 3VA1 range, above standard (class B) and below the high-breaking class L, so it is sized for commercial and light industrial distribution where fault levels stay under 36 kA.
What the ratings mean for fit
The 80 A fixed Ir means no adjustment dial — overload pickup is locked at 80 A, so this breaker is a straight swap for a design that already calls for 80 A TM release. Fixed Ii at 10 × In (800 A magnetic trip) suits motor-starting inrush or transformer energization where a lower magnetic setting would nuisance-trip. Four-pole with 100% N-conductor protection means the neutral pole is fully rated and protected — required on TN-C-S or IT systems where the neutral carries load and must be switched. Frame 160 accepts up to 160 A frames, so this breaker body has headroom for future uprating by swapping the trip unit (if the design allows).