How To Add Fuse To Breaker Box. Do not attempt to put a 25-amp breaker into a spot that housed a 15-amp fuse. The cable clamp must be selected properly for the size and type of cable you are using.
A fuse box doesnt allow you to add new circuits but a circuit breaker can handle much more. Now simply set breaker inside the housing of service panel at that spot. Remove the outer and inner insulation in the same way as before.
If youre adding a 120240-volt circuit strip away a 12-inch of insulation from the red hot wire as well.
Install a cable clamp in the circular hole in the service panel box with the clamp on the outside of the box. A fuse box doesnt allow you to add new circuits but a circuit breaker can handle much more. Fuse panels have limited capacity to handle todays electrical loads. Attach the black and red wires by pushing the ends under the lugs for the main breaker in the sub-panel and tightening the lugs with an Allen wrench.
