The Siemens 5SL3106-6 is a SENTRON miniature circuit breaker, 1-pole, B-curve, rated 6 A at 230/400 V AC. It carries a 4.5 kA breaking capacity per EN 60898 and 5 kA per IEC 60947-2, covering residential and infrastructure branch circuits. Per the datasheet, the current derates at elevated ambient: 5.64 A at 40 °C, 5.4 A at 45 °C, 5.04 A at 55 °C. If the panel runs warm, factor that into the load schedule.
Physical Fit & Integration
Width is 18 mm — one modular width unit (MWU) on a standard DIN rail. Height is 90 mm. Mounting position is any, which simplifies panel layout. Sealable per the spec, meaning the toggle can be locked in the off position for lockout/tagout compliance.
Breaking Capacity & Coordination
Two breaking-capacity ratings are on record: 4.5 kA per EN 60898 and 5 kA per IEC 60947-2. The IEC 60947-2 rating applies when the breaker is used in industrial distribution — the 5 kA figure gives a bit more headroom for fault-current coordination studies. The single-pole design interrupts one phase; for multi-phase circuits, match poles to the number of live conductors.
Environmental & Compliance
Single-phase operation is rated 250 V; multi-phase operation is rated 440 V maximum.