Siemens 5SY4606-7CC is a SENTRON miniature circuit breaker in the 5SY4CC design, built for 4-pole 3P+N switching at 6 A rated current with a C tripping curve. Breaking capacity is 10 kA at 400 V AC per EN 60898, with a secondary 5 kA rating under UL 1077 and CSA C22.2 No.235.
The 4-pole body takes 4 width units on the rail. Halogen-free and silicon-free construction matters in environments where outgassing can contaminate contacts or optics — clean-room adjacent, medical device manufacturing, or sealed enclosures where silicone vapors cause relay failures.