The Siemens 5SL6313-7 is a SENTRON miniature circuit breaker rated 13 A, 3-pole, with a C tripping characteristic. It breaks fault currents up to 6 kA per EN 60898 and IEC 60947-2 at 400 V AC — the standard interrupting rating for residential and light-commercial distribution boards in 50/60 Hz networks. The C-curve (5–10× In) makes it the typical choice for moderate inrush loads like small motor starters, lighting banks, and general-purpose socket circuits where the magnetic trip needs to ride through a brief start surge without nuisance tripping.
Panel fit and integration
Occupies 3 modular width units (54 mm) on standard DIN rail. Depth is 76 mm (70 mm installation depth), which fits flush in most 85 mm deep distribution enclosures. Mounting position is unrestricted — any orientation works. The IP20 rating applies only with conductors connected, so the busbar and wiring must be in place before the breaker is considered touch-safe. Sealable terminals allow the installer to lock the cover after commissioning, a requirement in some utility-metered installations.
The closest peer in the same form factor is the 5SL4363-7 — identical dimensions (76×54×90 mm), same 3-pole C-curve 13 A rating, same 400 V AC / 440 V max, same 10 000 mechanical cycles, same sealable terminals. The difference is breaking capacity: the 5SL4363-7 carries a 10 kA rating per both EN 60898 and IEC 60947-2, versus 6 kA on this part. If the panel's prospective short-circuit current (PSCC) at the breaker's location is under 6 kA, the 5SL6313-7 is the correct fit. For a board fed close to a transformer where fault levels exceed 6 kA, step up to the 5SL4363-7. No wiring or busbar changes needed — same footprint, same DIN-rail clip.
Environmental and compliance
Rated for ambient temperature from -40 °C to 75 °C, which covers unheated electrical rooms and outdoor enclosures in cold climates. Halogen-free and silicon-free construction — important for installations where off-gassing during a fault must not corrode adjacent contacts or sensitive electronics. Pollution degree 2 (non-conductive dust, occasional condensation) and overvoltage category III (fixed installation downstream of the main distribution board). Energy limitation class 3 means the breaker limits let-through energy to a level that coordinates with downstream equipment under most fault conditions.