Abstract: An electrical distribution center comprises a main bus plate assembly that is sandwiched between upper and lower auxiliary bus plate assemblies of a known type. The main bus plate assembly comprises stamped metal circuit components having bus strips sandwiched between upper and lower insulation plates that are permanently secured together. The stamped metal circuit components have male blade terminals that protrude through slots of the upper and lower insulation plates. The slots have laterally flexible side wall portions that are spread apart by embossments of the stamped metal circuit components to retain these components during the assembly process.