It requires a small amount of control circuit to turn on and off the load. Note that one one of the contactor acts as a switch for the start button.
Induction Motor Starter Types Circuit Diagram
Circuit diagram of contactor. A wiring diagram is a streamlined conventional photographic representation of an. The black power wires will need to be tied together externally such as through a wire nut. Collection of ac contactor wiring diagram. A simple circuit diagram. The explained circuit will effectively switch the connected appliances to the generator mains during power failure however it wont be able to switch start the generator automatically this will need to be done manually because most generators involve a difficult mechanical actuation procedure. Posted on may 9 2018 august 9 2018 by headcontrolsystem.
In the above one phase motor wiring i first connect a 2 pole circuit breaker and after that i connect the supply to motor starter and then i do cont actor coil wiring with normally close push button switch and normally open push button switch and in last i do connection between capacitor. The circuit that applies the voltage to the coil is referred to as the control circuit because it controls the main device that the contactor or relay is switching. The lights connect to the output ports on the contactor. Therefore the operation of this contactor is safe compared to manual contactor. The design of this type of contactor is most advanced among all other types of contactors. The above diagram is a complete method of single phase motor wiring with circuit breaker and contactor.
The auxiliary contact is often used in a relay logic circuit or for some other part of the motor control scheme typically switching 120 volt ac power instead of the motor voltage. Effectively looking the start button closed. Contactor wiring diagram pdf download. A wiring diagram is a simplified traditional pictorial representation of an electrical circuit. Referring to the given diagram we can see a simple circuit comprising of a tp relay. It reveals the elements of the circuit as streamlined forms and the power and also signal links between the gadgets.
The contactor will have space for the red power wires coming in from the photocell circuit breaker and lights. The coil voltage of a contactor or relay can be installed for virtually any control circuit voltage to provide complete flexibility for these devices both ac and dc as the. Collection of contactor wiring diagram pdf. Either of the two start buttons will close the contactor either of the stop buttons will open the contactor. Magnetic contactor circuit diagram luxury thermal overload relay. This is an electromagnetic type contactor and it can operate automatically.
One contactor may have several auxiliary contacts either normally open or normally closed if required.
Gallery of Circuit Diagram Of Contactor
