The Siemens SENTRON 5SY4113-5 is a 1-pole miniature circuit breaker with tripping characteristic A, rated for AC operation at 400 V (single-phase up to 440 V) and 50/60 Hz. Its breaking capacity is 10 kA per EN 60898-1 and 20 kA per IEC 60947-2 — the higher figure governs industrial panel coordination where fault currents can exceed 10 kA. For DC circuits it interrupts up to 15 kA at 60 V (max 72 V). Sealable terminals and halogen-free / silicon-free construction suit it for mechanical engineering and industrial environments.
The 18 mm width occupies one modular unit on a DIN rail. The quick-assembly system and combined top/bottom terminals simplify wiring.