Copper conductivity test not less than 54.5 Ms/m,R≤0.0820x10-6Ω.m ；Cutting by Laser Carving for maximum accurracy. Material: standoff insulator UI: 960V,UIMP:7.3KV made from UL recognized resin material and meets the requirements of UL 94 VO for self-extinguishing materials.Copper busbar made of high conductivity C1100 copper bar to inhibit corrosion and ensure good conductivity providing multiple grounding points to be connected quickly and easily.1/4 inch diameter terminal bolts are made of stainless steel for sturdiness and rustproof. Copper bar ground bar kit dimension: 7.88"x2.36"x .157". Standoff insulator posts with M4 installation holes,the metal to metal insulated area is larger and Rated Uimp is upto 7.4kv. Convenient Application: Grounding terminal bolts are slidable to adapt one or two hole cable lugs.The minimum width is 5/8" ,centre to centre distance compatible for most 2-hole lugs.Wall mounted copper ground bar kit enables multiple ground points to be connected quickly and easily. Widely used in high low power distribution cabinet,equipment grounding connections,for power distribution, transmission, fixing copper or copper busbar, etc. Pure Copper Ground Bar Kit- Adjustable Wall Mounted Copper Bus Bar with UL Material BusBar Insulator T Posts