The Siemens 5SN4506-7CN is a SENTRON miniature circuit breaker rated 6 A with a C tripping characteristic, 1P+N pole configuration, and a 10 kA breaking capacity per EN 60898 at 230 V AC. That 10 kA rating means it can safely interrupt a fault current up to 10,000 amps — standard for residential and light commercial distribution boards where the prospective short-circuit current stays under that threshold. The C-curve (5–10× In) handles moderate inrush from small motor loads or lighting ballasts without nuisance tripping, while still clearing fast on a hard short.
Physical fit and panel integration
This breaker occupies 2 modular width units (36 mm) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm behind the panel face. The 1P+N design switches the line conductor and switches the neutral — the neutral is not protected but is disconnected when the breaker trips, which is common for single-phase final subcircuits in many regional standards. It accepts solid conductors up to 25 mm², so it handles the feed-through wiring for downstream loads without needing a separate terminal block.
Halogen-free and silicon-free construction, sealable for tamper-proofing in metered installations. Overvoltage category III and pollution degree 2 suit it for fixed-installation distribution boards. The energy limitation class of 3 means it limits let-through energy under fault conditions — relevant for coordinating with downstream equipment and reducing arc-flash risk in the panel.