| Busway
| An economical, modern method of distributing electricity within a building. It is similar in function and appearance to the tracks that an electric model train runs upon. |
| Busway Fittings
| Special busway sections that allow busway to turn corners, branch off, etc., allowing busway to run virtually anywhere. Fittings are also used to terminate a bus run. |
| Bus Bars
| Made of copper or aluminum, these bars are the actual power conductors in a length of busway. |
| Bus Plug
| A device used to connect loads to the busway. |
| Circuit Breaker
| An electrical safety device. When the current passing through it exceeds a certain amperage, the breaker trips, breaking the circuit. |
| Drop Rod
| A device used to mount a hanger to a ceiling, wall or other surface. The customer must supply drop rods for the busway installation. |
| Element
| The part of a fuse that melts to break the circuit. Typically, it is a thin strip of metal. |
| Feeder Busway
| A type of busway used to feed power to a distant point. |
| Fuse
| An electrical safety device. When the current passing through it exceeds a certain amperage, the element melts, breaking the circuit. |
| Fusible Switch
| A switch with an integrated fuse. |
| Hanger
| A device used to support the weight of the busway, keeping it straight. The type of hanger required is determined by the specific mounting requirements of the duct |
| Overcurrent (or Overload)
| A condition in which current is in excess of the normal load being drawn. An ongoing overcurrent can cause damage. |
| Plug-In Busway
| A type of busway which has several outlets close together. Bus plugs are installed in these outlets. This type of busway costs more than feeder busway. |
| Service Entrance
| The point at which electrical power enters a building. |
| Specialty Plug
| A special-purpose bus plug, such as an Optim breaker or a TVSS unit. |
| Splice Plate
| A device for joining two sections of busway. |
