These types of busbars are available in two types of current ratings, 63A & 100A, which are in heavy demand.
The user has to connect the incoming power supply to the isolator, and the cables are connected from the output terminal of the isolator to the input terminals of the busbar as given in the images. The busbar can be further connected to different loads using wires with the provision of thimbles. To operate the busbar, the isolator has to be turned by pushing the knob in the upward direction, and then the power supply will flow in the circuit.