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 143 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?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ... A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ...
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.
How to Factor a Difference of Squares How to Factor a Difference of Squares
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
An electron is accelerated from rest through a potential difference. After acceleration the ... An electron is accelerated from rest through a potential difference. After acceleration the ...
Sheridan Motors is a car dealership that would like to investigate if there is a difference in ... Sheridan Motors is a car dealership that would like to investigate if there is a difference in ...
Video: ETC Protein Complexes & Chemiosmosis (Total ATP Production and ATP Synthase)

For a complete list of videos, visit our video library