Circuit breaker 3VA4 – 110 A, 25 kA @ 277 V, 1-pole
The Siemens 3VA4111-4ED14-3AA0 is a 1-pole circuit breaker from the 3VA4 UL Frame 125 family, rated 110 A continuous with a breaking capacity of 25 kA at 277 V (class S). The TM210 thermal-magnetic trip unit provides fixed overload protection at Ir=110 A and short-circuit pickup at Ii=10 x In (1100 A). This is a line-protection device, not a motor-protection breaker — the fixed thermal setting suits feeder or distribution duty where the load current is known and stable.
This part is classified as Product class C: manufactured/produced to order, not a stocked shelf item.