Description
The Littelfuse FLNR400 Time-Delay Fuse 400A, 250V is a Class RK5 dual-element overcurrent protection part for use in industrial and HVAC power distribution systems. It is rated for 400 amps continuous current and 250 volts AC and 125 volts DC, with a high interrupting capacity suitable for handling significant fault conditions. The construction allows it to withstand temporary inrush currents such as motor startup without nuisance tripping while still opening under sustained overloads or short circuit events. Mounted in holders or switchgear, it is commonly used to protect feeder circuits, motors, and large electrical equipment in commercial and industrial applications.
