The Siemens 5SY6116-6CC is a 1-pole SENTRON miniature circuit breaker with a B tripping characteristic, rated 16 A at 35 °C and 6 kA breaking capacity per EN 60898. It protects branch circuits against overload and short-circuit in residential, commercial, and industrial distribution boards.
Ratings that matter for fit
Width is 18 mm (1 modular unit), so it occupies one standard DIN-rail position. Current rating derates with ambient temperature: 16 A at 35 °C, 14.7 A at 40 °C, 14 A at 45 °C, 13.26 A at 50 °C, 12.5 A at 55 °C. If the panel runs warm, use the derated value for the actual ambient — don't spec by the 35 °C number alone. The breaker is sealable, halogen-free, and silicon-free — relevant for clean-room or food-processing panels where outgassing matters.