Siemens SENTRON 5SY7616-6 — B-curve 4-pole MCB
The Siemens SENTRON 5SY7616-6 is a 4-pole (3P+N) miniature circuit breaker with a B-curve tripping characteristic, designed for 400 V AC systems at 50/60 Hz. Its 15 kA rated breaking capacity per EN 60898 and 25 kA per IEC 60947-2 give it headroom for high-fault installations — the IEC 60947-2 figure governs industrial panel coordination, while the EN 60898 value applies to residential or commercial final circuits. The neutral pole is switched (3P+N), so you get full isolation on all four conductors without a separate switch.
With 25 kA at 400 V AC per IEC 60947-2, this breaker coordinates cleanly upstream of downstream MCBs rated up to 15 kA — the energy-limiting class 3 keeps let-through low enough to protect branch circuits without cascading failure.
Mounting position is any, so vertical or horizontal rail orientation is fine.
Halogen-free and silicon-free construction reduces toxic smoke and silicone contamination in sensitive environments like food processing or electronics assembly. Degree of pollution 3 means it tolerates conductive dust and humidity typical of industrial floors. Sealable for lockout/tagout compliance.