The Siemens 5SL3325-7CC is a SENTRON 5SL-series miniature circuit breaker — 3-pole, rated 25 A at 400 V AC, with a C tripping characteristic that trips at 5–10× rated current, so it handles moderate inrush from motor starters or lighting ballasts without nuisance trips on startup.
Screw terminals accept 0.75–35 mm² solid or stranded copper, with a tightening torque of 2.5–3 N·m. That range covers standard branch-circuit conductors from 1.5 mm² lighting circuits up to 10 mm² feeder tails. The IP20 rating applies with conductors connected — typical for enclosed distribution boards; no special sealing is needed inside a panel.
Environmental and mounting notes
Rated for ambient -25 °C to +45 °C operating, with periodic exposure to +55 °C and up to 95% humidity. Mounting position is unrestricted, which simplifies panel layout.