Circuit breaker 3VA4160-4ED34-3AA0
The Siemens 3VA4160-4ED34-3AA0 is a 3-pole molded case circuit breaker from the 3VA4 series, UL Frame 125, rated 60 A continuous with a breaking capacity of 25 kA at 480 V AC. The TM210 trip unit provides fixed thermal-magnetic overload protection (Ir = 60 A, permanently set) and short-circuit pickup at 10 × In (Ii = 600 A). This is a line-protection device, not a motor-protection breaker — the fixed Ir and high Ii ratio suit feeder and distribution panels where coordination with downstream branch breakers is the priority.
The 3-pole construction covers three-phase line protection; the FTFM designation indicates the fixed thermal, fixed magnetic trip — no field adjustment of Ir or Ii, so the BOM must match the load exactly.
Integration notes
Mounts in a standard panel cutout for the 3VA4 frame; the packaging dimensions (472 × 396 × 213 mm) give a sense of the shipping carton, not the device footprint — the breaker itself fits a 125 A frame envelope. Line and load lugs are sized for copper or aluminum conductors within the UL listing. The fixed trip settings mean no rotary dials or rating plugs to set during commissioning — just torque the terminals and test the trip mechanism.