The Schneider Electric DF2GA1051 is a DIN NH0 blade fuse from the TeSys GS range, configured as a set of three. It is rated 50 A continuous at 690 V AC with an aM (accompanied motor) fuse curve, meaning it is sized to handle motor inrush without nuisance blowing while still clearing a fault. The aM curve is a gating characteristic — it allows short-duration overloads typical of motor starting, then opens on sustained overcurrent or short circuit.
Sourcing reality — this part is obsolete
The DF2GA1051 is marked obsolete by Schneider Electric. No official successor order code is listed.
The NH0 blade size fits standard DIN NH fuse holders and disconnects. The aM curve is correct for motor circuits.