The Siemens 3VA1163-5GF42-0AH0 is a 4-pole IEC frame 160 molded case circuit breaker from the 3VA1 series, rated at 63 A with a breaking capacity of 55 kA at 415 V AC (class M). Protection is handled by a TM240 thermal-magnetic trip unit with adjustable overload (Ir) from 44 A to 63 A and short-circuit pickup (Ii) adjustable from 5 to 10 times In. The 100% N-conductor protection means the neutral pole is fully rated and protected, not just switched — a requirement for systems with high harmonic content or unbalanced loads where the neutral carries sustained current.
Panel Integration
The nut keeper kit (included) secures the breaker in place without loose hardware — a time-saver during panel assembly.