Bus Plugs are used to distribute power down a whole building. They mount right to the bus as opposed to using hardware. If you are looking for any kind of Bus Plug whether its be General Electric, Siemens, Cutler Hammer, Square d, any amp and any voltage, we are able to help you out. We carry both breaker type and fusible. Each of our Bus Plugs is backed by our one year warranty from the date of purchase.