This 20 amp Circuit breaker, is designed to replace the older style rewireable fuse plug on a 240v household circuit. 

If you trip the circuit, switch of the devices on the circuit, reset the trip switch and bring appliances on line as required. 

This device is intended to protect the integrity of the electrical circuit to which it is attached. 

This is Not Repeat "NOT" an RCD Safety Switch and should not be relied upon as such.