We have very good quality cat excavator switch supply, heavy equipment replacement parts switch dealer from china. It mainly used for caterpillar, komatsu earthmoving equipment.

A switch is an electronic component that allows the circuit to open and break the current to other circuits. The most common switch is to operate the machine or release the command to operate the switch, which has one or several electronic contacts. The "closed" of the contact indicates that the electronic contact is conducting and the current is allowed to flow; the "open" of the switch indicates that the electronic contact is not conducting open and does not allow current to flow.

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