The Siemens 5SL6216-7 is a SENTRON miniature circuit breaker (MCB), 2-pole, with a C tripping characteristic rated at 16 A. It breaks fault currents up to 6 kA at 400 V AC per both EN 60898 and IEC 60947-2 — the dual rating means it's accepted for residential/infrastructure branch circuits as well as industrial panel feeder protection.
Mounting position any, which simplifies layout in tight enclosures. Sealable design allows lockout-tagout on the toggle.
Environmental and service limits
Rated for -40 °C to 75 °C ambient, pollution degree 2, overvoltage category III. Mechanical service life 10 000 operating cycles typical. Power loss 1.8 W per pole at rated current in hot state, so two poles dissipate about 3.6 W inside the enclosure at full load.