About this product

Lauritz Knudsen Type FN switch-disconnector-fuse (S-D-F) units in open execution combine an on-load isolating switch with HRC fuse protection in a single assembly for panel mounting. The range covers 32 A to 800 A at 415 V, utilisation category AC 23A, and is suitable for cylindrical (HF) and DIN (HN) fuse-links. Features include phase barriers, a telescopic shaft for depth adjustment, door interlock and padlock facility, and an isolable neutral on TPN units. Conforms to IEC 60947-3 and IS/IEC 60947-3. Prices are for the unit only and exclude HRC fuses.