The Siemens 5SL3410-7 is a SENTRON miniature circuit breaker — 4-pole, C-curve, rated 10 A at 30 °C, with a 4.5 kA breaking capacity per both EN 60898 and IEC 60947-2. Rated 400 V AC for multi-phase operation, with a maximum of 440 V AC. That's a detail to note if your panel design expects a switched neutral; this unit doesn't provide it. Mounts on standard DIN rail, any position. The housing is 4 modular-width units (72 mm wide), 90 mm tall, 76 mm deep, with a 70 mm installation depth behind the panel face.
Rated for 10 000 mechanical operating cycles typical. That's standard for a residential-grade MCB — not a high-duty industrial switching device, but adequate for branch-circuit protection where it sees occasional manual operation or fault clearing.
Temperature derating is published: 10 A at 30 °C, 9.52 A at 40 °C, 9 A at 45 °C, 8.74 A at 55 °C. If the panel ambient runs warm — say a crowded enclosure near a boiler or in a plant mezzanine — use the 40 °C or 55 °C figure for your load calculation, not the 30 °C number. That covers unheated utility rooms, outdoor enclosures in temperate climates, and most industrial interiors. Halogen-free and silicon-free construction, sealable with a lead or tag. Touch protection is built in. Energy limitation class 3 — that's the standard residential/commercial class for C-curve MCBs; it limits the let-through energy under fault conditions to protect downstream wiring.