Clutch Break - Electrician Talk - Professional Electrical Contractors Forum
Go Back   Electrician Talk - Professional Electrical Contractors Forum > Electrical Forum > General Electrical Discussion

Thread Tools Display Modes
Old 02-20-2015, 05:07 PM   #1
Junior Member
Join Date: Jan 2015
Location: New Hampshire
Posts: 19
Rewards Points: 38
Default Clutch Break

Hi guys,

So im kind of embarrassed about this, but I don't know how a DC clutch break works.

I got a new Job and we use lots of DC motors here. The motor is controlled through a control box with a start/stop (green button), Auto/manual switch, Emergency stop button, and a speed control.

The motor is hooked up to a clutch/ break with 4 wires coming out of it. 2 black wires, 1 label clutch, one break; and 2 red wires, 1 clutch, 1 break.

The motor runs on 90 VDC, when I test the V of the 2 black wires when on auto I have 130 VDC. When I turn the switch to manual aka hand I have 130 VDC between the red wires.

Can somebody explain exactly how the clutch break works. What happens on the inside when I apply voltage. Cant find a youtube video or anything online. Hope this question isn't too lame.

thanks in advance!

I just switched from Commercial construction to motors so Im learning a ton! And yes I am still an apprentice.
AdamNH is offline   Reply With Quote
Join Contractor Talk

Join the #1 Electrician Forum Today - It's Totally Free! - Are you a Professional Electrical Contractor? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's the leading place for electricians to meet online. No homeowners asking DIY questions. Just fellow tradesmen who enjoy talking about their business, their trade, and anything else that comes up. No matter what your specialty is you'll find that is a great community to join. Best of all it's totally free!

Join - Click Here JOIN FOR FREE

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Sponsored Links
Old 02-20-2015, 06:11 PM   #2
Junior Member
Join Date: Jan 2013
Location: Missouri
Posts: 26
Rewards Points: 32

The ones that I have used were a spring applied, power released disk type brake that was installed on the end of the armature shaft.

The spring holds the brake on until power is applied to the motor. The power also goes to the coil in the brake assembly and pulls it "off". When the power is removed (switched off) the spring applies pressure to the brake disk to hold the motor.
Retired - Technical Sales Manager, North America
Marigold Industrial - Ansell
Product Design Eng. A.B. Chance/Hubbell
Bipeflier is offline   Reply With Quote
The Following User Says Thank You to Bipeflier For This Useful Post:
guest (02-20-2015)
Old 02-21-2015, 01:56 PM   #3
John Valdes's Avatar
Join Date: May 2007
Location: South Carolina
Posts: 15,754
Rewards Points: 244

Not a lame question, but lets be certain as to what you have.
You have a 90 volt DC motor connected to this clutch/brake assembly?
Or you have a motor that contains a clutch/brake internal?

In both cases most likely the motor runs all the time and the clutch brake is energized to turn the shaft that extends from the clutch/brake assembly.
I have seen these used a tensioners for coiling applications and i have seen them used as conveyor belt manual control.
Sometimes the clutch/brake assembly is energized by a foot pedal and operator can use. To start or stop the conveyor for example.
What is your application?

In my examples, the clutch/brake is energized by an outside influence like a foot pedal.
Pressing down on the foot pedal energizes the clutch/brake coil and that in turn pulls the clutch plate in and allows the shaft to turn.
Is this what you are asking about?
John Valdes is online now   Reply With Quote
Sponsored Links
Old 02-21-2015, 01:56 PM   #4
Senior Member
Join Date: Dec 2011
Location: Winnipeg, Manitoba
Posts: 552
Rewards Points: 630

Originally Posted by AdamNH View Post
Hi guys,

So im kind of embarrassed about this, but I don't know how a DC clutch break works.
Don't be embarrassed I don't even know what a DC clutch break is. I do all commercial and have no industrial experience.
darren79 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Break Fabulous General Electrical Discussion 55 10-14-2014 06:30 PM
How does one break in? babzog General Electrical Discussion 7 04-10-2013 10:04 AM
Trainee looking to break in.... Jongi Ledbetter New Member Introductions 2 02-05-2013 12:40 AM
Electric Motor Clutch Idea kganjali General Electrical Discussion 7 01-26-2012 09:49 PM
Can we just get a break?? erics37 Off Topic (Non Trade) 4 03-13-2011 10:00 PM

All times are GMT -4. The time now is 03:55 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Our Pro Sites Network | | | | |