A fuse is a wire/made component that fuses when an overcurrent flows and a contactor is an electromechanical switch that has a coil when fed with the assigned voltage, makes and/or breaks the contacts on itself.
In short, a fuse is a protection device and the contactor is a switch.
Fuses are not used exclusively on low voltage circuits, either. Fuses protect the conductors in overhead 16KV primary distribution circuits.
A contactor is essentially an industrial-strength relay which can be configured to interrupt a circuit in the event of overload. However, a contactor can also function as an ordinary relay. I have used them in that application. A contactor that interrupts the flow of electric current in the event of an overload is called a circuit breaker. Small circuit breakers are designed so that they can be used like an ordinary switch. The big ones that live in substations and other distribution facilities cannot.
Before you send a web address, you should check it out by going there to see what it is.
You may be surprised that it isn't what you thought because of a misleading name.
1 A fuse has a thermal element / wire which breaks when the "blow" current is reached, and the fuse needs to be replaced.
2 A contactor has a thermal element that opens a circuit at the "blow" current and which resets after the temperature reached goes back to normal and at which point the operator can manually reposition the contacts.
Please do not confuse other safety devices to a contactor.
Contactor is a component that does as the name suggests. Makes and breaks contacts. There ends its function, no thermal, no overcurrent, absolutely nothing.
Like any other component, it should be used within its specifications.
Edit: If it does anything else, it is called something else.
Difference Between Fuse and Contactor
Re: difference between fuse and contactor
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