The DF2FN25 is a 22 x 58 mm NFC cartridge fuse from the TeSys GS fuse-disconnector range, rated 25 A at 690 V AC with a gG (general-purpose) fuse curve. It ships as a set of 10 units, without striker.
The 22 x 58 mm body is the standard European cartridge size for fuse-disconnector holders like the TeSys GS series — it fits the same clips as other 22x58 mm fuses, so swapping in a different brand or curve is straightforward as long as the holder accepts that length and diameter. The gG curve means this fuse provides full-range overcurrent protection (both overload and short-circuit) for general-purpose loads — cables, distribution boards, and resistive or slightly inductive circuits. It is not a motor-protection (aM) fuse; for motor branch circuits you would want an aM or gM characteristic to ride through inrush. The 690 V rating gives headroom for line-to-line voltage in 400 V networks, which is typical for European industrial panels.
Supplied as a set of 10, which is the standard packaging for this order code. If you need fewer or more, the same fuse is also available as a single unit under a different DF2 variant — but the DF2FN25 code specifically buys the 10-pack.
Deployment context
These fuses drop into TeSys GS fuse-disconnector switches mounted on DIN rail or panel plates. The 22 x 58 mm size is common across European fuse holders, so it also fits third-party holders with the same clip spacing.