Disclosed is an electrical wiring block for an accessory. The accessory may be a switch or a receptacle. The electrical wiring block may include a base section and a wiring section positioned offset on the base section to form an overhang and an overhang seat. The base section may include a base plug and a base socket configured to fit within a base plug of an adjacent electrical wiring block. The wiring section may include wire holes, wire terminals, and wire ports positioned at an angle to the wire terminals. The wiring section may include a wiring section indent that may allow access to the wire ports on an adjacent, connected electrical wiring block. The overhang seat may cradle the overhang of an adjacent, connected electrical wiring block. The switch or receptacle may be installed in the electrical wiring block by pushing.