Siemens 5SL3106-7MB — 1-pole C-curve MCB for 6 A branch circuits
It breaks faults up to 4.5 kA per EN 60898 at 230/400 V AC, which is the standard interrupting rating for residential and light-commercial distribution boards — sufficient for most final subcircuits where the prospective short-circuit current stays under that threshold. The C-curve (5–10× In) handles moderate inrush from small motors, lighting ballasts, and transformers without nuisance tripping, while still clearing faults fast enough to protect 1.5 mm² or 2.5 mm² copper wiring. Occupying a single 18 mm modular width on DIN rail, it fits standard distribution boards and sub-panels. Depth is 76 mm (70 mm behind the panel surface), which is the standard SENTRON 5SL footprint — no clearance surprises when retrofitting into an existing board.
Integration notes
IP20 with connected conductors, so it is intended for enclosed panels only, not washdown or outdoor exposure. Sealable for lockout/tagout compliance. The 1 MW unit width (18 mm) means 12 breakers fit a standard 216 mm DIN-rail segment.