The 3VA2510-5HL32-0KF0 is a 3-pole IEC frame 1000 circuit breaker from the Siemens 3VA2 series, rated for line protection with an ETU320 electronic trip unit offering LI (long-time and instantaneous) protection. For a 1000 A frame, that is a high-interrupt rating (class M) suited to main or large feeder breakers in industrial switchboards where the transformer or utility supply can deliver substantial short-circuit energy. The LI trip curve means overload protection (Ir) is adjustable from 400 A to 1000 A, and instantaneous short-circuit pickup (Ii) is adjustable from 1.5 to 10 times In (1500–10,000 A). This adjustability lets the breaker coordinate selectively with downstream devices — a critical feature when you need a fault on a branch to clear before the main trips, keeping the rest of the plant live.
Built-in accessories and deployment context
This order code ships with a shunt trip (left-mounted) rated 208–277 V AC 50/60 Hz and 220–250 V DC, plus one auxiliary switch. The 3VA2 frame is designed for fixed or plug-in mounting in Siemens switchgear assemblies or standard distribution panels. At 1000 A, this breaker is typically bolted to busbars in a main switchboard or large MCC bucket, not snapped onto a DIN rail. Plan for panel cutout dimensions per the 3VA2 frame 1000 template — the frame size dictates the mounting hole pattern and busbar spacing.
Because this is a high-current frame breaker with specific accessories (shunt trip, aux switch), lead times can vary with the factory backlog; a sourcing inquiry is the fastest way to lock in delivery for a project schedule.