open circuit
over load
short circuit and overload
open circuit and overload
To protect the operator
To protect the line
To prevent excessive current
To open the circuit
voltage caused by a short circuit
current flow caused by a short circuit
voltage caused by an open circuit
current flow caused by an open circuit
6 amperes
5.5 amperes
5 amperes
4 amperes
high rupturing capacity
high speed of operation
no ageing effect
low rupturing capacity