Siemens 5SL4410-7RC — 4-pole C-curve MCB, 10 A, 10 kA
The Siemens 5SL4410-7RC is a SENTRON miniature circuit breaker, 4-pole, C-curve, rated 10 A at 415 V AC with a 10 kA breaking capacity per EN 60898. That 10 kA at 415 V means it can safely interrupt a fault current up to 10,000 amps on a 415 V three-phase supply — enough for most residential and light commercial distribution boards in IEC territories. Occupies a single modular width unit (18 mm) per pole, so four poles fit in 72 mm of DIN-rail space. Depth is 76 mm, which is the standard SENTRON 5SL series footprint — it'll drop into any panel already kitted with these breakers without re-drilling or re-routing busbars.
Rated 10 A at 30 °C ambient, with a 415 V AC supply voltage. The multi-phase maximum is 440 V AC, so it's fine on 400/415 V three-phase networks. Single-phase operation is rated at 250 V AC — that's the line-to-neutral voltage in a 415/240 V system. DC rating tops out at 72 V, which is enough for control circuits but not for high-voltage DC bus work. That's the standard for domestic and light commercial final circuits in most IEC countries. The energy limitation class is 3, meaning it limits let-through energy well enough for most downstream equipment protection. That's the standard for this class — not a contactor, but fine for occasional manual isolation or breaker-as-switch use in residential panels. For frequent switching duty, you'd want a dedicated disconnect.
Snap-on DIN-rail mount, any position. Installation depth is 70 mm — the breaker body extends 70 mm behind the rail, plus the terminals. Sealable — you can wire-seal the toggle to prevent unauthorized operation. Touch protection is built in. Halogen-free and silicon-free — that matters for panels in environments where silicone outgassing can contaminate contacts or optics, and for fire-safety compliance in public buildings. Degree of pollution 2, overvoltage category III — standard for fixed-installation distribution boards. Neutral conductor is not switched — the 4-pole version switches all three phases but the neutral is solid through. If you need a switched neutral, look at the 5SL4...RC series with the 'N' designation.