The Siemens 5SL6210-6 is a 2-pole miniature circuit breaker from the SENTRON 5SL6 family, rated 10 A with a B tripping characteristic. It breaks fault currents up to 6 kA per both EN 60898 and IEC 60947-2, making it a direct fit for residential and infrastructure final circuits where the B curve protects against short circuits while tolerating modest inrush from lighting or resistive loads.
Panel fit and ratings
Occupying 2 modular width units (36 mm) on a DIN rail, the 5SL6210-6 mounts in any position and requires 70 mm installation depth behind the panel surface. Its IP20 rating with connected conductors is standard for enclosed distribution boards — no special sealing needed for dry indoor environments. Rated for 400 V AC multi-phase operation (max 440 V) at 50/60 Hz, the breaker handles up to 72 V DC per pole. The B characteristic means magnetic trip occurs at 3–5× rated current, so it suits circuits with low surge content — lighting, socket outlets, and general-purpose loads in residential or light commercial panels. Power loss per pole is 1.6 W at rated current in hot operating state, which keeps thermal buildup manageable in a multi-way enclosure. Mechanical service life is rated 10 000 operating cycles typical.
Lifecycle and sourcing
The breaker accepts supplementary devices (auxiliary switches, shunt trips, alarm contacts) as plug-in accessories, which simplifies panel expansion without replacing the base unit.