JXF Distribution box is suitable for three-phase three wire,three-phase four wire,and three-phase five wire systems with 50Hz,500V and below,and load current not exceeding 250A. To order such indoor box, a letter “R' is specified when ordering; to order the concealed box sized 250 x 200 x 140, the order number is JXF252014R. The product features a. Low voltage distribution box-JXF series Overview JXF Series distribution box is a kind of distribution equipment with various control functions assembled based on the type, specification and quantity of components. It is widely applies in industrial and civil architectures as the dynamical,. Its compact structure is achieved by flexible selection of box dimensions.