Attach a ground wire from one of the threaded studs (A) at the bottom of the housing, to the mounting plate (B). The ground resistance between all system parts shall be <. ype, a “R” is added after the Specification. Close ormal operation due to poor manufacture quality. For any damage due to one of the following. JXF Series Power Distribution Box product is box assembled with various control functions by customer-selected components, and there are many box sizes and specifications and the size of the box can be customized according to the size of the installation elements. It is used in the AC 50Hz power. JXF is a kind of electrical control box, specifically, it is a kind of low-voltage distribution box. JXF distribution box is to assemble switchgear, measuring instruments and protective appliances in closed or semi-enclosed metal cabinets according to the relevant specifications of electrical. JXF series products are suitable for power, lighting and loop power distribution control, monitoring and metering protection in 50Hz~60Hz, single-phase two-wire, three-phase three-wire, three-phase four-wire and three-phase five-wire systems with voltage below 500V. 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.