Siemens SENTRON 5SJ4325-8HG42 is a 3-pole miniature circuit breaker with a D-tripping characteristic, rated for 400 V AC and 60 V DC. It delivers 10 kA and 15 kA breaking capacity, covering typical distribution board and motor branch-circuit fault levels. D-curve is suited for loads with high inrush like small motors, transformers, or power supplies.
Panel fit & mounting
Occupies 3 modular width units (54 mm) on a standard DIN rail (35 mm). Depth is 70 mm with a mounting depth of also 70 mm, so it sits flush with the rail. Height 121 mm. No back-of-panel clearance needed beyond the rail. IP20 with conductors connected; IP40 in the handle area. Pollution degree 3, overvoltage category III. Sealable (padlockable) for lockout/tagout. Mounting position any, which simplifies layout.