Overview
The DF2HA1251 is a Schneider TeSys GS DIN NH1 blade fuse, order code DF2HA1251, rated 690 VAC and 250 A with an aM (motor-protection) curve, supplied as a set of three units in a PCE package. This fuse is designed for motor branch-circuit protection in industrial panels, fitting NH1-size fuse holders and switch-disconnectors within the TeSys GS range.
The aM (accompanying motor) fuse curve provides time-delay characteristics that tolerate motor inrush currents while clearing short-circuit faults. The 250 A rating matches the full-load current of larger motors or multiple smaller motors on a common branch.
Applications
TeSys GS fuses are used in motor control centres, distribution panels, and machine tool cabinets for short-circuit and overload protection of motor circuits, transformers, and resistive loads.