C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Dumb Fuel Pump Relay Question

Thread Tools
 
Search this Thread
 
Old Aug 1, 2009 | 09:08 PM
  #1  
78Vette-SA's Avatar
78Vette-SA
Thread Starter
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 7,032
Likes: 2
From: Newburgh NY
Default Dumb Fuel Pump Relay Question

What is the difference between a single pole 30amp and double pole besides 10 amps? I see they come in different flavors but was curious of the advantage of a double pole over a single pole or what additional use it has.

Thanks
Reply
Old Aug 1, 2009 | 09:24 PM
  #2  
TimAT's Avatar
TimAT
Le Mans Master
15 Year Member
Liked
Loved
 
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
Default

Kind of tough without any way to draw a picture,

A single pole is just a simple on- off switch. One wire feeds from the source of power, the other goes to whatever you want to turn on/off.

A double pole can control 2 separate things independently of each other- power too. Like 2 switches that are side by side and only have one handle to operate it.

The relay coil is the handle.
Did that make any sense?
The amp rating is how much current the switch contacts can handle without sticking together,

Got lucky- this thread has a single pole relay diagram:
http://forums.corvetteforum.com/c3-t...-question.html

Last edited by TimAT; Aug 1, 2009 at 09:29 PM.
Reply
Old Aug 1, 2009 | 09:28 PM
  #3  
72LS1Vette's Avatar
72LS1Vette
Safety Car
20 Year Member
 
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Default

Originally Posted by 78Vette-SA
What is the difference between a single pole 30amp and double pole besides 10 amps? I see they come in different flavors but was curious of the advantage of a double pole over a single pole or what additional use it has.

Thanks
I could be wrong but the single pole relay will route the input to a single output whereas the double pole relay will route the input to 2 outputs. If you are just wiring a fuel pump relay the single pole should be all you need. The double pole relay is probably rated at a higher amperage due to the multiple outputs.



Rick B.
Reply
Old Aug 1, 2009 | 09:32 PM
  #4  
TimAT's Avatar
TimAT
Le Mans Master
15 Year Member
Liked
Loved
 
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
Default

Lots of stuff about switches and such:

http://en.wikipedia.org/wiki/Switch

and :

http://en.wikipedia.org/wiki/Relay

Last edited by TimAT; Aug 1, 2009 at 09:36 PM.
Reply

Get notified of new replies

To Dumb Fuel Pump Relay Question





All times are GMT -4. The time now is 08:04 AM.

story-0
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-1
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-2
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-3
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-4
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-5
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-6
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-7
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-8
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE