HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 2/2
Larry M
User Rank
Platinum
Re: Relay vs. Contactor
Larry M   4/25/2012 11:10:43 AM
NO RATINGS
GlennA wrote "There is a difference."

Not really. That's like saying that all lamps over 300 watts are to be called lamps and those less than 300 watts are to be called light bulbs. A difference between control voltage and switching voltage isn't really a discriminator either.

Is the "condenser" in the ignition of your pre-1980s car not a capacitor, just because the auto mechanic calls it by that name?

Larry

TJ McDermott
User Rank
Blogger
Re: Relay vs. Contactor
TJ McDermott   4/25/2012 9:58:21 AM
NO RATINGS
Boy, this story sounds a lot like the Maytag stories we've heard this year.

GlennA
User Rank
Gold
Relay vs. Contactor
GlennA   4/25/2012 9:23:34 AM
NO RATINGS
There is a difference.  Contactors are usually used when driving motors.  They have a higher voltage rating to prevent arc-over when stopping a motor.  Relays are often used in control circuits and have lower voltage ratings.  N.B. There is a voltage rating for the coil that pulls-in the contacts, and a different voltage / current rating for the contacts that drive the load..

<<  <  Page 2/2


Partner Zone
Latest Analysis
In today’s connected world we are seeing the beginning of connected homes, smart grids, self-driving automobiles, drones, and many other amazing devices. Out of all the soon-to-be connected devices, which device poses the greatest dangerous to its users and society?
A multi-talented new type of robot can be launched from underwater and fly into the air. It's lightweight, relatively low cost, and has a structure that's 3D printed from plastics, not metal.
There is a new cooperation between the Industrial Internet Consortium and Plattform Industrie 4.0 to explore the potential alignment of their two architecture efforts: the Reference Architecture Model for Industrie 4.0 (RAMI4.0) and the Industrial Internet Reference Architecture (IIRA).
National Instruments has expanded the capabilities of its NI InsightCM Enterprise platform.
The problem with a four-, five-, or six-year degree is that they don’t teach engineers the soft skills required to have a successful career. Here are seven skills that every engineering graduate needs to be successful.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
May 2 - 6, Embedded System Design Techniques™ - Rapid Prototyping Embedded Systems using Micro Python
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service