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A contactor, as far as being used to start a motor or the like, is in essence, a relay. A coil is energized and the normally open contacts from the contactor close (normally 3 contacts for an AC motor) and the motor starts. Do I understand your question? Or are you trying to decifer the difference between the coil of a relay and the contacts of a relay?
What else can I help you with?
Specifically what are moving coil and moving iron used for measuring?
If you are questioning about different relay (contactor) constructions, the terms moving coil and moving iron designate what part of the relay moves and carries the conductor that makes or breaks a circuit.
What is the Difference between a magnetic starter And a contactor?
Motor starter usually refers to the complete assembly, including enclosure, contactor, control transformer (if any), overloads, fuses (if any), etc. A contactor is really just an overgrown relay, and is just one component of a starter. That having been said, many folks use the two terms somewhat interchangably. So someone who says starter may mean contactor, and vise-versa. Go figure.
What is a contactor coil?
a contactor is generally looks like a small box connected to an electric circuit. it is what controls electricity flow to a motor. in the middle is normally a way to push in the contactor to manually check to see if either the motor works or if you have electricity.
What is a contactor for a Central Air Unit?
The relay actuated by the thermostat which starts and stops the compressor and condenser fan in the outdoor unit.
What is the difference between an definite purpose contactor and a lighting sontactor?
A definite purpose contactor is designed (and rated) for a specific load. So a lighting contactor is one example of a definite purpose contactor. A motor starter contactor is another example. So, a lighting contactor is a definite purpose contactor, but a definite purpose contactor is not necessarily a lighting contactor (it might be a motor starter, for instance).
What is the part of the contactor that gets magnetized by the relay coil is called what?
The part of the contactor that gets magnetized by the relay coil is called the armature or plunger. This is the component that moves when the relay coil is energized, causing the contacts to close or open depending on the design of the contactor.
How do you wire a relay to a motor contactor?
One way is to use the auxiliary contacts on the motor contactor to close a separate source supply to drive an auxiliary relay.
What is the difference between a contactor and a relay?
A contactor is typically used for high-power applications, while a relay is used for lower-power applications. Contactors have larger contacts and are designed to handle higher currents, while relays are more compact and suitable for smaller loads.
What is the difference between a contactor and a relay in electrical systems?
A contactor is typically used for high-power applications and has larger contacts, while a relay is used for lower-power applications and has smaller contacts. Contactors are designed to handle higher currents and voltages than relays.
What is the difference between a relay and a contactor?
A relay is a switch that is operated by electricity, typically used in low-power applications. A contactor is a larger switch that is used in high-power applications, such as controlling motors or lighting. Contactors are designed to handle higher currents and voltages than relays.
Can you replace an 3 phase solid state relay with a contactor on a 3 phase heater?
Not without other modifications. The circuits used to turn the solid state relay on will not be suitable for turning a contactor on.
How relay is used to control induction motor?
If you want to control induction motor using a control relay give neutral directly to the one point of coil of relay & one point of coil of contactor then give control supply through push button to second point of coil of relay. use one NO point of relay and give supply to coil of contactor. and also use one NO of contactor for holding the contactor & take OFF (NC) in the starting to stop motor after complition of work. It is jut like an Direct On-line starter.
Is there any difference between the switching action of relays and contactors?
No, there is not any difference between the switching action of a relay and a contactor. Both of these devices are operated by an electro magnetic coil.
Specifically what are moving coil and moving iron used for measuring?
If you are questioning about different relay (contactor) constructions, the terms moving coil and moving iron designate what part of the relay moves and carries the conductor that makes or breaks a circuit.
What is the difference between a relay and a contactor in electrical engineering?
In electrical engineering, a relay is a switch that is operated by an electromagnet, while a contactor is a larger and more heavy-duty switch that is typically used for higher power applications. Relays are often used in control circuits to switch smaller loads, while contactors are used for switching larger loads such as motors or heaters.
What device is the only load in the control circuit of a condensing unit?
I think that would have to be some relay or contactor coil for a fan, compressor or relay contacts.
If condencer contactor goes out...will it stop blowing cold air?
this is most likely a relay under the hood.
