What this 3VA2 breaker delivers
The Siemens 3VA2510-5HN32-0KE0 is a 3-pole IEC frame 1000 circuit breaker with a 55 kA breaking capacity at 415 V (class M), meaning it can safely interrupt fault currents up to that level without upstream cascading — a key selectivity consideration for main or feeder breakers in a distribution panel. It carries the ETU350 LSI electronic trip unit, adjustable: overload protection Ir from 400 A to 1000 A, short-time pickup Isd from 1.5 to 10 x Ir, and instantaneous pickup Ii fixed at 10 x In. That range lets the site electrical engineer coordinate downstream devices while keeping the main breaker selective. The shunt trip (left-mounted, 208–277 V AC 50/60 Hz or 220–250 V DC) and four auxiliary contacts are factory-integrated — no field-assembly of accessories needed. For a commissioning engineer, that means one order code, one nameplate to verify against the PO.
Panel integration notes
Mounts in a standard IEC distribution panel — frame 1000 footprint. The nut keeper kit (included per the description) secures the breaker to the mounting plate without loose hardware, which speeds panel assembly and avoids dropped fasteners in live gear. Shunt trip wired left-side; verify control voltage matches the listed dual-range coil (208–277 V AC or 220–250 V DC). Auxiliary contacts (4 AUX) provide status feedback to the PLC or safety circuit — common for pump or conveyor feeder breakers where remote trip indication is required.