What it is and key ratings
The 5SY4250-5: Temperature derating data supplied for 35°C through 60°C — at 40°C the rated current is 47.6 A, at 60°C it's 42.4 A — useful for panel ambient planning. Compliant to IEC/EN 60898-1 and IEC/EN 60947-2 / UL1077, halogen-free and silicon-free.
Physical integration
Width 36 mm (2 modular units) and depth 76 mm (70 mm installation depth) — fits standard DIN-rail modular boards. Quick assembly system for fast mounting; any orientation allowed. Neutral conductor not switched (2-pole with no isolated neutral pole). IP20 with connected conductors; pollution degree 3, overvoltage category III.
Standards and documentation
Dual-rated: designed for both IEC 60898-1 (domestic-type installations) and IEC 60947-2 plus UL1077 (industrial supplementary protection). Suitability for operation in mechanical engineering and industry.