The DF2FGN40 is a DIN NH000 blade fuse from the Schneider TeSys DF range, rated 40 A at 690 V AC with a gG (general-purpose) fuse curve. It comes as a set of 10 pieces, without striker, for branch-circuit and feeder protection in industrial control panels.
Sourcing Reality — Obsolete, Sourced to Order
Schneider has marked the DF2FGN40 as obsolete.
The 40 A rated current and 690 V AC voltage rating cover most 400 V and 480 V motor branch circuits and distribution feeders. The gG curve means it's a general-purpose fuse for cable and equipment protection — not a motor-start (aM) curve, so it's sized for continuous load, not inrush. The NH000 blade size fits standard DIN NH fuse holders and disconnectors in the TeSys GS family.