Main switchboards typically constitute about 2% of building construction costs. However, failure in switchboards will definitely bring about discomfort inconvenience, loss in profit and in many instances, it may even lead to disastrous consequence.

Therefore, it is important to know the right level of dependability that is carefully weighed against usage requirement and budget.

Therefore, the selection of Switchboard should be carefully weighed against 3 major factors that are "dependability, requirements and budget".