The Siemens SENTRON 5SY5113-7 is a 1-pole miniature circuit breaker (MCB) rated at 13 A with a C tripping characteristic. It breaks fault currents up to 10 kA per EN 60898, which covers the majority of commercial and light industrial panel applications where the prospective short-circuit current at the distribution board stays under that threshold. The C-curve (5–10× In) handles moderate inrush from motor starters, contactor coils, and small transformers without nuisance tripping — the usual choice for mixed resistive-inductive loads in a final subcircuit.
What the ratings mean for fit
The 13 A rating at 50/60 Hz is the continuous current the MCB carries without opening under reference conditions (30 °C). In a real panel, the thermal derating table tells the story: at 40 °C the breaker is good for 12.38 A, at 50 °C it drops to 11.73 A, and at 60 °C you're down to 11.02 A. If the panel ambient runs hot — say, a sealed enclosure with drives — you need to account for that derating or step up one frame size. The 10 kA breaking capacity at 230/400 V AC per EN 60898 means the MCB can safely interrupt a fault up to that level; above that you'd need a current-limiting upstream device or a higher-rated breaker. The DC side is rated 10 kA per EN 60898-2 at 220 V, with polarity observed. At 18 mm wide (1 modular width), this breaker fits a standard DIN-rail distribution board with one slot per pole. The 76 mm depth and 70 mm installation depth mean it clears typical enclosure back-panel clearance — no special deep-box required. Mounting position is any, which simplifies layout in tight gland-plate areas. The IP20 rating (with connected conductors) is standard for enclosed distribution boards; if the breaker sees washdown or outdoor exposure, it needs a higher-rated enclosure around it.
Panel integration notes
Snap-on mounting to 35 mm DIN rail per EN 60715, with a quick-assembly system that latches without tools. The combined top and bottom terminals accept both busbar and conductor connections — handy for daisy-chaining multiple breakers in a distribution board. Touch protection is built into the terminal design (fingertip-safe per VDE). The sealable feature allows a lead seal or lockout tag to prevent unauthorized reset — useful on safety-critical or revenue-metered circuits. Halogen-free and silicon-free construction means no corrosive off-gassing in a confined panel.