The Siemens 5SL6506-7BB is a SENTRON 5SL miniature circuit breaker with a 6 A rated current and a C tripping curve, designed for 230 V AC residential and infrastructure circuits. It breaks fault currents up to 6 kA per EN 60898 and the same 6 kA per IEC 60947-2 — so it's rated for standard domestic or light commercial panelboards where the prospective short-circuit current stays under that limit. This is a 1P+N configuration (one protected pole plus a switched neutral), with neutral conductor switching built in — handy for applications where you want to isolate both legs on a single-phase final subcircuit without a separate isolator.
The 6 A rating at 30 °C derates to 5.68 A at 40 °C and 5.17 A at 55 °C. That 5.17 A at 55 °C means a 5 A lighting or receptacle load is fine, but a 6 A continuous heater load would trip eventually. The C-curve trips between 5 and 10 times rated current, so about 30–60 A magnetic release.
It snaps onto DIN rail, takes up 2 modular width units (36 mm total width), and has a depth of 76 mm plus 70 mm installation depth. That's a standard 2-MW footprint — no surprises in a populated enclosure. Mounting position is any, so you can lay it sideways in a shallow gland plate if needed.
The breaker carries approvals per EN 60898 and IEC 60947-2, pollution degree 2, overvoltage category III, and energy limitation class 3. Sealable (tamper-evident) for metering or safety-disconnect applications.