This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is the difference between a relay and a contactor? What will be an ideal ... (Read 145 times)

yoroshambo

  • Hero Member
  • *****
  • Posts: 566
on: Jul 26, 2018
What is the difference between a relay and a contactor?
 
  What will be an ideal response?

Question 2

What is a relay?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kusterl

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 26, 2018
Answer to Question 1

Relays are not connected to the load circuit and are smaller, generally 15

amps or less. Contactors are connected in the load circuit and will need to be larger.

Answer to Question 2

A relay is an electrically operated switch that uses an electromagnet to open or close a set of electrical contacts. Normally only a small amount of current is required to energize the electromagnet. This allows for a device with a high current rating such as an electric heater to be operated by a control relay operated by a low current signal. The control wires can be much smaller and separate from the large main supply lines required for the main load.


yoroshambo

  • Hero Member
  • *****
  • Posts: 566
Reply #2 on: Jul 26, 2018
Both answers were spot on, thank you once again


kusterl

  • Sr. Member
  • ****
  • Posts: 315
Reply #3 on: Jul 26, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Brachial Plexus drawing plus the difference in the forearm Brachial Plexus drawing plus the difference in the forearm
For some Americans, religion is an “easy-going, makes-little-difference” matter, as expressed in ... For some Americans, religion is an “easy-going, makes-little-difference” matter, as expressed in ...
Hookup for testing fuel-pump current draw on any vehicle equipped with a fuel-pump relay. Hookup for testing fuel-pump current draw on any vehicle equipped with a fuel-pump relay.
Insert the terminals into the relay socket in 30 and 87. Insert the terminals into the relay socket in 30 and 87.
Set the meter to read ohms (V) and measure the resistance of the relay coil. The usual reading for ... Set the meter to read ohms (V) and measure the resistance of the relay coil. The usual reading for ...
Difference Between Solar and Sidereal Day Difference Between Solar and Sidereal Day
Video: Simple Diffusion - Ion transport

For a complete list of videos, visit our video library