Up at 40 °C you get 9.43 A, at 50 °C it's 8.82 A — the standard thermal derating curve for a 30 °C reference. Touch protection is built in (the terminals are shrouded when wired). Sealable option lets you lock the handle position for lockout/tagout.
Siemens lists suitability for residential buildings and infrastructure — think distribution boards in apartment complexes, commercial light and power, or building services. The D-curve and 2-pole format also fit motor branch circuits in small HVAC or pump panels, where the 10 A rating protects a fractional-hp motor and the magnetic trip handles the start transient without false trips.
This is a current-production part — no phase-out notice, no last-time-buy window. The SENTRON 5SL series is Siemens' standard residential and light-commercial MCB line, widely stocked through distribution.