Coldbreak Brewing HERMS Giveaway!

HomeBrewSupply AMCYL Brew Kettle Giveaway!


Home Brew Forums > Home Brewing Beer > Electric Brewing > Question about fuses with PJ's diagrams
Reply
 
Thread Tools
Old 04-10-2013, 06:10 PM   #1
Cioffi
Feedback Score: 1 reviews
Recipes 
 
Join Date: Jan 2011
Location: Grand Rapids, MI
Posts: 141
Liked 3 Times on 3 Posts

Default Question about fuses with PJ's diagrams

Okay, this could be a dumb questios. But, I'm using one of PJ's diagrams. It looks like he suggests using a 1 amp fuse in several places along the writing route. But, to my mind, a 1 amp fuse would blow constantly given that pumps, etc., are going to use over 1 amp. If so, does the "1" in the diagrams mean 10 amps?

TC


Cioffi is offline
 
Reply With Quote
Old 04-10-2013, 07:01 PM   #2
LandoLincoln
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
LandoLincoln's Avatar
Recipes 
 
Join Date: Feb 2011
Location: Joliet, IL
Posts: 2,799
Liked 967 Times on 519 Posts
Likes Given: 25

Default

I've looked over a lot of his diagrams as well, but I don't recall him showing people to use 1 amp fuses with circuits involving pumps.


__________________
www.jolietbrewersguild.org
LandoLincoln is offline
 
Reply With Quote
Old 04-10-2013, 09:41 PM   #3
P-J
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Charlotte, NC
Posts: 3,335
Liked 292 Times on 229 Posts
Likes Given: 496

Default

Cioffi,

Which diagram are you referring to and using?

P-J
P-J is offline
 
Reply With Quote
Old 04-10-2013, 10:29 PM   #4
mattd2
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2009
Location: Papamoa, New Zealand
Posts: 3,639
Liked 281 Times on 224 Posts
Likes Given: 56

Default

going off memeory I think I only recall 2 places where fuses are used in PJ diagrams - E-stop to short to ground to trip the GFCI and for protection of the PID.
mattd2 is offline
 
Reply With Quote
Old 04-10-2013, 10:47 PM   #5
P-J
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Charlotte, NC
Posts: 3,335
Liked 292 Times on 229 Posts
Likes Given: 496

Default

Quote:
Originally Posted by mattd2 View Post
going off memeory I think I only recall 2 places where fuses are used in PJ diagrams - E-stop to short to ground to trip the GFCI and for protection of the PID.
Plus a fuse to protect the pump circuits on a 30A feed panel.

With a 50A feed panel I use circuit breakers but also use fuses to protect the PIDs and the E-stop circuit.
P-J is offline
 
Reply With Quote
Old 04-11-2013, 01:50 AM   #6
jsguitar
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
jsguitar's Avatar
Recipes 
 
Join Date: May 2011
Location: Overland Park, KS
Posts: 1,122
Liked 103 Times on 81 Posts
Likes Given: 656

Default

For my diagram that P-J did he has a 10 amp fast blow fuse on the pump circuits.
jsguitar is offline
 
Reply With Quote
Old 04-11-2013, 02:03 AM   #7
jsguitar
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
jsguitar's Avatar
Recipes 
 
Join Date: May 2011
Location: Overland Park, KS
Posts: 1,122
Liked 103 Times on 81 Posts
Likes Given: 656

Default

To the OP: I'm wondering if you were looking at a diagram like this?

If so, the entire circuit for the pumps and PID's are connected to a 15 amp breaker, with the 1 amp fuse positioned after the pumps but before the PID's.
jsguitar is offline
 
Reply With Quote
Old 04-11-2013, 11:34 AM   #8
Cioffi
Feedback Score: 1 reviews
Recipes 
 
Join Date: Jan 2011
Location: Grand Rapids, MI
Posts: 141
Liked 3 Times on 3 Posts

Default

PJ and others,

I've attached the diagram by PJ that I'll be using. There's a 10 amp fuse that goes to the pumps, and then there are several 1 amp fuses wired in here and there: one for the E-stop, etc. I'm curious as to why 1 amp and not larger amperage.

TC
Click image for larger version

Name:	Wiring Diagram II.jpg
Views:	266
Size:	54.4 KB
ID:	114753  
Cioffi is offline
 
Reply With Quote
Old 04-11-2013, 11:44 AM   #9
tyzippers
Feedback Score: 4 reviews
Recipes 
 
Join Date: Jan 2012
Location: Meadville, PA
Posts: 2,358
Liked 412 Times on 307 Posts
Likes Given: 147

Default

Quote:
Originally Posted by Cioffi
PJ and others,

I've attached the diagram by PJ that I'll be using. There's a 10 amp fuse that goes to the pumps, and then there are several 1 amp fuses wired in here and there: one for the E-stop, etc. I'm curious as to why 1 amp and not larger amperage.

TC
Cioffi, there's nothing to worry about here. PJ's got it absolutely right. If you look at the individual circuits that the 1A fuses are on, you'll find that they're protecting the contractor coils, e-stop circuit, and indicator lights. All of these area draw of less than 1amp. The pumps are protected by the 10A fuse. Use this diagram, follow it closely, and you'll have no problems.
__________________
Check me out on Untappd. Or don't. See if I care.
tyzippers is offline
 
Reply With Quote
Old 04-11-2013, 01:22 PM   #10
Cioffi
Feedback Score: 1 reviews
Recipes 
 
Join Date: Jan 2011
Location: Grand Rapids, MI
Posts: 141
Liked 3 Times on 3 Posts

Default

Quote:
Originally Posted by tyzippers View Post
Cioffi, there's nothing to worry about here. PJ's got it absolutely right. If you look at the individual circuits that the 1A fuses are on, you'll find that they're protecting the contractor coils, e-stop circuit, and indicator lights. All of these area draw of less than 1amp. The pumps are protected by the 10A fuse. Use this diagram, follow it closely, and you'll have no problems.
Excellent! Thanks everybody.


Cioffi is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wiring Diagrams Rickochet Electric Brewing 23 01-14-2015 11:37 PM
240v LED wiring - need fuses/resistors? DustBow Electric Brewing 4 07-14-2012 12:47 AM
Question about fuses for element controller Bugaboo Electric Brewing 17 12-07-2010 06:30 PM
Good source for affordable fuses. rudy0498 Other 7 04-20-2010 03:08 AM
What fuses should I be using between my controllers and SSR? Brewmoor Brew Stands 5 12-23-2009 03:03 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS