Littlefuse RUEF400 4.0A Polyswitch Fuse

The Littelfuse Polyswitch is a resettable device that performs like a fuse under overcurrent conditions, but is unique in that it will reset. As soon as an overcurrent condition is reached the Polyswitch heats up to its trip temperature.

* Trip current 8A * Trip time 12.7 sec * Hold current 4A * Max voltage 30V * Max current 40A * Radial leaded package * Initial resistance 0.01 to 0.03R * Post-trip resistance 0.05R * Lead pitch 5.8mm * Dimensions 14mm x 7.6mm x 20.1mm * UL and TUV approved

Note: Previously manufactured by Raychem.