HBT 2014 Big Giveaway - 4/10 Re-Draw Winners Posted!

Home Brew Forums > Home Brewing Beer > Electric Brewing > Simple question regarding a switch




Reply
 
LinkBack Thread Tools Display Modes
Old 07-10-2012, 12:05 AM   #1
nealperkins
Feedback Score: 0 reviews
 
nealperkins's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Boone, NC
Posts: 271
Liked 11 Times on 9 Posts
Likes Given: 5

Default Simple question regarding a switch

well, for you guys it is. To say I'm not electrical is an over statement...

I want to 'insert' an off/on switch before an existing outlet. [Just so you know, it is to toggle a March pump.]

I think I understand that I want to actually insert the switch on the hot leg leaving the common in place??? Or, does it matter if I connect (insert the toggle switch to either side?

So, which is the hot leg? Does it normally connect to the 'larger' side of the three-prong? Or, do I need to connect the electronic device and plug in a multimeter to get (what?) reading to be sure I'm inserting my toggle switch on the correct leg?

Thanks for your help!



__________________
nealperkins is offline
 
Reply With Quote Quick reply to this message
Old 07-10-2012, 02:25 AM   #2
Rbeckett
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: Bronson, Fl
Posts: 979
Liked 60 Times on 45 Posts
Likes Given: 29

Default

Normal house wiring is Black for hot, white for neutral and green or green with a stripe for earth ground. You should use the hot side for your switch and use an SSR or relay to insure you have an adequate amount of amps and volts available. Most househols outlets are on a 15 Amp circuit, so keep that in mind when you start adding more stuff to your system. Hope this helps get ya going. Feel free to ask for help if you need more.
Wheelchair Bob



__________________

What do you mean "no Kidneys"???, WTF now I gotta drink less beer...
Join the Automation sub forum in Electric brewing for a discussion of components and control systems. I did!!!!

Rbeckett is offline
 
Reply With Quote Quick reply to this message
Old 07-10-2012, 10:39 AM   #3
nealperkins
Feedback Score: 0 reviews
 
nealperkins's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Boone, NC
Posts: 271
Liked 11 Times on 9 Posts
Likes Given: 5

Default

I should have made clear that the outlet is on a control box and inside both common and hot are white.

So, if I plug in this controller and measure the outlet via multimeter, what readings insure hot...positive or negative voltage?

Also, does it matter if I switch common vs. hot?

__________________
nealperkins is offline
 
Reply With Quote Quick reply to this message
Old 07-10-2012, 11:35 AM   #4
wubears71
Feedback Score: 0 reviews
 
wubears71's Avatar
Recipes 
 
Join Date: Dec 2011
Location: Webster Groves, MO
Posts: 373
Liked 28 Times on 16 Posts
Likes Given: 27

Default

Always switch hot.

__________________
wubears71 is offline
 
Reply With Quote Quick reply to this message
Old 07-10-2012, 11:46 AM   #5
ChuckO
Feedback Score: 0 reviews
 
ChuckO's Avatar
Recipes 
 
Join Date: Oct 2008
Location: Keyrock, WV
Posts: 833
Liked 62 Times on 57 Posts
Likes Given: 8

Default

As above, always switch the hot lead. On a cord, the hot lead is the narrower of the two flat leads, the ground is the round lead. With both leads the same color, use an ohm meter to find the hot lead of an un-plugged cord.

__________________
ChuckO is offline
 
Reply With Quote Quick reply to this message
Old 07-10-2012, 01:55 PM   #6
nealperkins
Feedback Score: 0 reviews
 
nealperkins's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Boone, NC
Posts: 271
Liked 11 Times on 9 Posts
Likes Given: 5

Default

Thanks!

__________________
nealperkins is offline
 
Reply With Quote Quick reply to this message
Old 07-10-2012, 02:26 PM   #7
Budzu
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2009
Location: Chattanooga, TN
Posts: 793
Liked 16 Times on 15 Posts

Default

If trying to find which is the hot leg, the multimeter will read 120 volts between the hot and neutral, AND the hot and ground. neutral and ground will not read voltage.

__________________
Countertop Brutus Budzu-style
Budzu is offline
 
Reply With Quote Quick reply to this message
Old 07-10-2012, 03:23 PM   #8
nealperkins
Feedback Score: 0 reviews
 
nealperkins's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Boone, NC
Posts: 271
Liked 11 Times on 9 Posts
Likes Given: 5

Default

Perfect! Thanks

__________________
nealperkins is offline
 
Reply With Quote Quick reply to this message
Old 07-14-2012, 04:51 AM   #9
mkultra69
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Port Orchard WA
Posts: 98
Default

On a receptacle the brass colored screw is the "hot" and the silver is the neutral. And as was said always switch the hot.



__________________

Live better buy union

mkultra69 is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
hoa switch wiring question wncbrewer Electric Brewing 0 07-07-2012 04:47 PM
How do I do this?..."simple switch controled burners" mikelikesit2000 Electric Brewing 8 07-21-2011 12:25 PM
Heating Element Switch Question JrZyBud Electric Brewing 9 05-19-2011 06:24 PM
power switch question doulovebeef Electric Brewing 6 01-06-2011 01:32 AM
Simple switch question wilceaser Electric Brewing 2 11-18-2010 04:22 PM



Newest Threads