Cable end feed units are used on the ends of busbar risers which are cable fed. They can be on the top of the busbar, feeding down through the building, or they can be located at the bottom of the busbar riser, feeding up through the building.

The size of the cable end feed unit depends on anumber of factors:

• rating of busbar
• size of cable
• number of cables
• Is a protective device or an isolator required