The Siemens SENTRON 5SY7116-6 is a 1-pole miniature circuit breaker (MCB) in active current production, rated for branch-circuit protection in industrial control panels and distribution boards. Its B-curve tripping characteristic (3–5× In) makes it a standard choice for resistive and general-purpose loads where inrush is modest — think lighting, control transformers, or heater circuits in mechanical engineering and industry environments. Breaking capacity is the headline: 15 kA per EN 60898-1 and 25 kA per IEC 60947-2 at 400 V AC, with a DC rating of 15 kA at 60 V (72 V max operating voltage). That 25 kA figure under 60947-2 is the one that matters for industrial panel SCCR coordination — it tells you this MCB can safely interrupt a fault up to 25 kA without welding its contacts or cascading failure upstream. The UL 1077 supplementary-protector rating sits at 5 kA, which covers North American branch-circuit applications where the MCB backs a listed OCPD. Snaps onto DIN rail via the quick-assembly system, occupies a single 18 mm modular width, and can be mounted in any position — useful when panel layout is tight. IP20 with connected conductors means it's protected against finger contact but not washdown; keep it inside a sealed enclosure in wet areas. The housing is halogen-free and silicon-free, which matters for outgassing-sensitive environments like clean rooms or sealed cabinets near sensitive electronics.
Compliance & Documentation
Designed to IEC / EN 60898-1 and IEC / EN 60947-2, with a UL 1077 supplementary-protector listing for North American acceptance. Overvoltage category III, pollution degree 3 — rated for fixed-installation mains supply in industrial environments. The sealable design (tamper-evident cover) supports lockout/tagout procedures. Compliance documentation (RoHS, REACH, CE, UKCA) is standard with the SENTRON series and available on request.