QO load centers are designed to simplify installation, improve reliability, and meet requirements to protect electrical systems, equipment, and people. They come with features such as top or bottom feed capability, convertible mains, split branch neutral for clutter free wiring, and three ground bar mounting locations. They also allow field installable accessories. This solid neutral assembly is rated for load centers with 200A main lug rating. This solid neutral assembly is insulated and groundable. It has 1 main terminal and 12 branch terminals, with an additional grounding terminal. Its main neutral terminal accepts 4 AWG to 300kcmil and its branch neutral terminals accept 14 AWG to 4 AWG for aluminum and 12 AWG to 4 AWG for copper conductor. This product is UL recognized.