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Find the integral.
Auxiliary Contacts
Auxiliary contacts are additional contacts used in a relay or contactor that provide a secondary switching function, often used for signaling or interlocking purposes.
Control Circuit
An electrical circuit designed to control the operation of a device, often using lower power levels than the device it controls.
Relay
An electrically operated switch that allows a circuit to be controlled by a low-power signal, or where several circuits must be controlled by one signal.
Contact
An electrical component used to complete or interrupt an electrical circuit.
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