Abstract: A meter socket base assembly including a mounting block, one or more connectors, one or more meter jaws and, optionally, one or more support blocks. The mounting block has first and second ends, first and second sides, a top, a bottom and a longitudinal axis between the first and second ends and includes a base, first and second walls defining a channel and, optionally, first and second coupling mechanisms. Recessed portions and indentations on the top of the side walls receive connectors at different orientations. Coupling mechanisms can be formed on the exterior sides of the mounting block for attaching support blocks. The meter jaws are attached to the top of the side walls and configured to receive the blade contacts of watthour meters.