Lawson TKF 250A - 315A High Voltage Fuses
The small size of the Lawson TKF250 250A 415V high voltage fuses means that through heat loss it will cool much quicker leading to lower temperatures.
With dimensions of the Lawson TKF315 315A 415V HRC fuse is much less than that allowed so watt loss is lowered assisting with energy conservation.
111mm fixing centre.
One fuse per box.