The Siemens 5SL6110-6BB is a 1-pole SENTRON miniature circuit breaker (MCB) with a B tripping characteristic, rated 10 A at 230/400 V AC. It's not meant for motor starting; that's what a C- or D-curve handles. The single-pole format (1P) protects one phase, no neutral switching built in.
Where this MCB fits
It's 18 mm wide (1 modular unit), so it fills one slot in a distribution board. The 76 mm depth plus 70 mm installation depth means it clears standard shallow enclosures; you don't need a deep can for this one. The 50 Hz rating aligns with European mains frequency; the 440 V max for multi-phase operation means it can sit on a 400 V three-phase system (line-to-line) as a branch protector, with the single-phase rating at 250 V for line-to-neutral circuits.
In a typical residential panel with a 6 kA service entrance, this breaker coordinates fine. If your available fault current is higher (say 10 kA or 25 kA at the service), you'd need a higher-rated breaker upstream or a current-limiting device. The energy limitation class 3 means it restricts let-through energy to a moderate level — not the fastest (class 1 or 2) but adequate for standard branch protection. The sealable feature allows locking the handle with a padlock for lockout/tagout.