What this breaker does on your line
The Siemens 3VA2510-7HN32-0DA0 is a 3-pole IEC frame 1000 circuit breaker with a breaking capacity class C rating of 110 kA at 415 V AC. It uses an ETU350 trip unit configured for LSI protection — long-time (overload), short-time, and instantaneous — with a continuous current rating In of 1000 A. Overload protection Ir is adjustable from 400 A to 1000 A, and short-circuit protection Isd ranges from 1.5 to 10 times Ir. The instantaneous pickup Ii is fixed at 10 x In.
Mounts in a standard IEC frame 1000 draw-out cradle. The 3-pole form factor fits the same panel cutout as other 3VA2 frame breakers. The undervoltage release is wired separately at 208–230 V AC; verify control voltage matches your panel supply before commissioning.