It protects the appliances from excess current
It prevents the waste of electrical energy consumption
It establishes the supply voltage
It protects the energy meter from short circuit
less reliable in operation
not easy to install
not easy to maintain
more costly
High Rupturing Capacity (HRC) Fuse
Switch Fuse Unit
Circuit Breaker
Electrical Reset Relays
spring press mechanism
trip mechanism
solenoid operated mechanism
air pressure operated mechanism
maximum operating power
minimum operating power
breaking capacity
rupturing capacity