Breaking capacity and duty
The 5SY4614-7CV is a 3-pole-plus-neutral miniature circuit breaker with a C-trip curve and a 0.3 A rated current. Its headline number is the 15 kA ultimate breaking capacity (Icu) at 400 V AC — that's the fault current it can safely interrupt without welding its contacts or rupturing the case, which matters when you're coordinating downstream protection in a panel that sees high prospective short-circuit currents.
Where it fits
Snaps onto standard 35 mm DIN rail inside a distribution board or control cabinet. The C-curve (5–10× In magnetic trip) suits it for protecting general-purpose circuits with moderate inrush — think control transformers, contactor coils, or small motor loads where a B-curve would nuisance-trip on startup.
Lifecycle and sourcing
Listed as current-production lifecycle stage. That means the factory is still making it and the supply chain is standard — no last-time-buy clock ticking. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.