The Siemens 5SL3625-6 is a 4-pole (3P+N) SENTRON miniature circuit breaker with a B tripping characteristic, rated at 25 A and 400 V AC. Its 4.5 kA breaking capacity per EN 60898 covers most residential and light commercial distribution boards — the B-curve means it trips between 3 and 5 times rated current, suited for resistive and general-purpose loads where inrush is modest.
The 25 A B-curve is a common choice for lighting, socket-outlet, and small-appliance circuits in IEC markets. The 400 V AC rated voltage matches three-phase line-to-line in 230/400 V systems. The 4-pole (3P+N) configuration switches all three phases and the neutral, with the neutral pole switching but not protected — this is standard for TN or TT systems where neutral isolation is required. The neutral conductor switching feature is built in. Terminals accept solid or stranded conductors from 0.75 to 25 mm², tightening torque 2.5 to 3 N·m.
Deployment context
IP20 with connected conductors. Mounting position any.