A switch box assembly is configured to house a switch box having a bus bar. The switch box assembly includes a holder, a nut housing and a guide. The holder includes a back wall. The back wall includes a slot for receiving the bus bar. The nut housing is configured to house a nut. The guide is disposed on the nut housing and adjacent the back wall, the guide dimensioned to guide the bus bar over a top surface of the nut. Accordingly, the guide prevents the bus bar from hitting the nut during installation.