The Bus Plug is a high-powered enclosed fused switch. It is an electrical device designed to ensure maximum circuit protection for companies utilizing high powered machinery. This unit has been completely designed and tested by Pennywise and is currently in mass production. Pennywise supports the UL certification and patenting process. There are 8 injection molds and over 30 Sheet Metal molds. The units contain safety interlocks and protection devices. Pennywise supports continued modification and development in the Bus Plug category.