The Schneider Electric DF2FGA80 is a TeSys DF-series NH00 blade fuse rated at 80 A with an aM (motor-protection) curve, designed for 690 V AC circuits. It comes as a set of three, intended for three-phase protection in motor branch circuits or general distribution panels.
The aM curve means it is intended for motor protection: it withstands moderate inrush without nuisance blowing but clears short-circuit faults quickly. The 690 V AC rated operational voltage (Ue) covers 400 V and 480 V three-phase systems with margin, so it fits standard industrial supply voltages across Europe and North America.