What this 3VA1 breaker carries
The Siemens 3VA1580-5EF32-0KE0 is a 3-pole IEC frame 1000 circuit breaker in breaking capacity class M, rated Icu=55kA at 415 V AC. The continuous current rating In=800 A is set via a TM240 thermal-magnetic trip unit with adjustable overload protection Ir=560…800 A and short-circuit protection Ii=5…10 × In.
Integrated accessories
Factory-fitted on this order code: a shunt trip (left-side mount) rated 208–277 V AC 50/60 Hz and 220–250 V DC, plus four auxiliary switches (changeover contacts). Both mount inside the breaker envelope — no external enclosure space needed for these functions.