Primary Cutout Switch is the most convenient, most affordable and to protect the power distribution. Fuse Link switch is one of the most simple, the best price with good performance and protection of power distribution system protection devices, many power distribution equipment such as distribution transformers, capacitors and high voltage differences between lines are all outside the house used as a protection fuse chain switch.
Not only the first connection fees cheaper than the other switches, but after installation, in addition to its protection equipment within the scope of failure of fuse ,you need to replace the fuse, in the usually almost to maintenance, so customers are generally willing to use electricity.