Combined terminals at both top and bottom accept the supply cable from either direction, and the touch-protection feature meets IP20 with connected conductors — safe for finger access inside the panel.
A-characteristic: what it means for the load
The A-characteristic tripping curve is the most sensitive of the standard MCB classes — it trips between 2 and 3 times rated current for short-circuit events. This makes the 5SY4313-5 the correct choice for protecting semiconductor devices, control transformers, and sensitive electronic loads where a B- or C-curve would let through too much energy before opening. Rated 13 A at 35 °C ambient, the breaker derates to 11.39 A at 60 °C.
Breaking capacity and fault clearing
The DC rating under IEC 60947-2 is 15 kA, covering battery-backed DC bus circuits common in UPS and solar combiner panels.