KSX system for distribution feeder unit, for outdoor use in xEnergy type-tested power distribution systems and XVTL distribution panel, including fixing brackets, fixing screws, and retainers for covers, short-circuit strength 110 kA, 3-4 pole, rated operational current Ie = 3200 A, can be used for 30 x 10 mm copper conductors, double T profile, triple T profile, external use in switchboard.