+ A Control Cubicle in which the low voltage relays and instruments are fitted.
+ A busbar chamber that supports one three-phase set of insulated high conductivity Copper busbars that through the length of the switchboard.
+ A Current Transformer chamber from where the Measurement and Protection devices get their inputs.
+ A Cable Box from which Power Cables are connected to the Motor. In some applications Surge Arresters are fitted inorder to protect the motor from excessive switching surges
+ A Voltage Transformer and its Housing may be incorporated so as to engage with the Circuit (Cable) or Busbars.
+ A Circuit Breaker chamber into which the withdrawable part engages.
In some designs an auxiliary transformer can be fitted on the Carriage to provide power for the operation of the Contactor.