Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Garage > Lighting

Notices

3 -130w 6" KC 121s on one relay

Reply
 
Thread Tools Search this Thread
Old 04-30-2013, 11:58 AM   #1
Senior Member
stump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shed
 
stump jumper's Avatar
Name: Bill
Joined: Aug 2010, #42106
Location: Rockwall, Tx
Gender: Male
Posts: 1,042
stump jumper's Tacoma Gallery
3 -130w 6" KC 121s on one relay

According to the amp draw (32.5) I would think that this is no problem on a 40a relay. KC website says only 2.
  Reply With Quote
Old 04-30-2013, 11:59 AM   #2
Pasti-Dip Free Since 1983
Pugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shed
 
Pugga's Avatar
Name: Mike
Joined: Jun 2010, #39131
Location: Massachusetts
Gender: Male
Posts: 28,045
Pugga's Tacoma Gallery
A 40A relay should be able to manage that power, just make sure the wires are thick enough.
  Reply With Quote
Old 04-30-2013, 02:26 PM   #3
Senior Member
stump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shed
 
stump jumper's Avatar
Name: Bill
Joined: Aug 2010, #42106
Location: Rockwall, Tx
Gender: Male
Posts: 1,042
stump jumper's Tacoma Gallery
Quote:
Originally Posted by Pugga View Post
A 40A relay should be able to manage that power, just make sure the wires are thick enough.
my thought also. I might have trash the output wires that come with the 2 light kit for something heavier. I know on AC I would be looking at 8ga. but not sure on DC.
  Reply With Quote
Old 04-30-2013, 03:16 PM   #4
Taco Sauce
Yota Toy is a glorious beacon of lightYota Toy is a glorious beacon of lightYota Toy is a glorious beacon of lightYota Toy is a glorious beacon of lightYota Toy is a glorious beacon of light
Joined: Jul 2011, #59913
Gender: Male
Posts: 224
Yota Toy's Tacoma Gallery
I would use three relays for redundancy (unlikely to lose all three lights at once) and longevity (much less strain on the relay contacts).
  Reply With Quote
Old 04-30-2013, 03:18 PM   #5
Red
Large is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shedLarge is one of the sharper tools in the shed
Joined: Sep 2011, #63268
Gender: Male
Posts: 14,099
Large's Tacoma Gallery
I would recommend a #10 AWG stranded for 40 amps
  Reply With Quote
Old 04-30-2013, 03:23 PM   #6
Senior Member
stump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shed
 
stump jumper's Avatar
Name: Bill
Joined: Aug 2010, #42106
Location: Rockwall, Tx
Gender: Male
Posts: 1,042
stump jumper's Tacoma Gallery
I am thinking 2 relays since there are only 2 outs on the one in the double light kit.
  Reply With Quote
Old 04-30-2013, 03:24 PM   #7
Pasti-Dip Free Since 1983
Pugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shed
 
Pugga's Avatar
Name: Mike
Joined: Jun 2010, #39131
Location: Massachusetts
Gender: Male
Posts: 28,045
Pugga's Tacoma Gallery
Quote:
Originally Posted by stump jumper View Post
my thought also. I might have trash the output wires that come with the 2 light kit for something heavier. I know on AC I would be looking at 8ga. but not sure on DC.
As Large mentioned, I'd use 10 ga. for the wire between the power source and the relay. If you run individual wires between the relay and the lights themselves, then you can use whatever wire came with the lights in their kit.

Yota Toy does bring up a good point though. If you're counting on these lights, redundancy could be something to take into consideration. Personally, I just through a couple extra relays in my glove box and if one fails, just swap it out but, if you don't want to have the hassle of fixing your wiring on a dark trail, multiple relays would ensure that at least 1 or 2 of the lights would continue to function.
  Reply With Quote
Old 04-30-2013, 03:26 PM   #8
Pasti-Dip Free Since 1983
Pugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shed
 
Pugga's Avatar
Name: Mike
Joined: Jun 2010, #39131
Location: Massachusetts
Gender: Male
Posts: 28,045
Pugga's Tacoma Gallery
Quote:
Originally Posted by stump jumper View Post
I am thinking 2 relays since there are only 2 outs on the one in the double light kit.
What do you mean '2 outs'? I had assumed you'd all but scrapped the 'kit' wiring since you're wiring 3 lights and had purchased a 40A relay. Make sure your power for the lights isn't going through the switch. Sometimes those 'kits' aren't wired very well.
  Reply With Quote
Old 04-30-2013, 05:18 PM   #9
Senior Member
stump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shed
 
stump jumper's Avatar
Name: Bill
Joined: Aug 2010, #42106
Location: Rockwall, Tx
Gender: Male
Posts: 1,042
stump jumper's Tacoma Gallery
Quote:
Originally Posted by Pugga View Post
What do you mean '2 outs'? I had assumed you'd all but scrapped the 'kit' wiring since you're wiring 3 lights and had purchased a 40A relay. Make sure your power for the lights isn't going through the switch. Sometimes those 'kits' aren't wired very well.
definitely power for lights through relay. I use to do this a lot as a young man but it has been a while. The KC kit has a 40. Sounds like I need to do some research on relays. Right now o am window shopping. In fact I am killing time at dealer while they detail my truck.
  Reply With Quote
Old 04-30-2013, 05:58 PM   #10
Pasti-Dip Free Since 1983
Pugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shedPugga is one of the sharper tools in the shed
 
Pugga's Avatar
Name: Mike
Joined: Jun 2010, #39131
Location: Massachusetts
Gender: Male
Posts: 28,045
Pugga's Tacoma Gallery
Quote:
Originally Posted by stump jumper View Post
definitely power for lights through relay. I use to do this a lot as a young man but it has been a while. The KC kit has a 40. Sounds like I need to do some research on relays. Right now o am window shopping. In fact I am killing time at dealer while they detail my truck.
Oh, ditch the KC relay and pick up a 4 prong automotive relay at your local auto parts store. Just make sure it's a 40A relay as most common ones are only rated for 30. You could quickly splice in a new relay into the KC kit with very little effort.
  Reply With Quote
Old 05-01-2013, 10:10 AM   #11
Senior Member
stump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shedstump jumper is one of the sharper tools in the shed
 
stump jumper's Avatar
Name: Bill
Joined: Aug 2010, #42106
Location: Rockwall, Tx
Gender: Male
Posts: 1,042
stump jumper's Tacoma Gallery
I am trying to figure this out. If the relay has 2 outputs should I power 2 light off 1 and the third off the other? Last time I did this was in the 80s and I had 4 lights on one relay. I am sure I ran 2 off each output.
  Reply With Quote
Old 05-04-2013, 09:28 AM   #12
Senior Member
joes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shedjoes06tacoma is one of the sharper tools in the shed
Name: Joe
Joined: Jan 2010, #28588
Location: Central Coast, CA
Gender: Male
Posts: 3,079
joes06tacoma's Tacoma Gallery
Quote:
Originally Posted by stump jumper View Post
I am trying to figure this out. If the relay has 2 outputs should I power 2 light off 1 and the third off the other? Last time I did this was in the 80s and I had 4 lights on one relay. I am sure I ran 2 off each output.
Yep.

Remember that a single pole relay only has one set of contacts. All the power is going through a single contact, the extra output terminal is just an easy way to attach more wiring.

It's worth remembering that whatever wire you put downstream of a fuse should be able to handle what the fuse is rated at.

I have wired two pieces of 14 gauge to a relay output before, and although the wire was rated to handle the amperage of the light it was feeding, it wasn't rated to handle the amperage rating of the fuse. In all likelihood, it would never have been a problem, since the most likely reason for the fuse to blow would be a short to ground, the fuse would go fast. Just something to think about.
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Adding 4 KC 130w Lights gatormanpc Lighting 19 08-19-2012 02:40 PM
KC Hilites Daylighters 130w behind grillcraft? gacandido2010 Lighting 18 12-03-2011 09:14 PM
KC Highlites (Driving)- black- 130w anthonytacoma Buy / Sell / Trade 2 01-31-2011 10:07 PM
KC Hilites 130w slimlite off road light? Stillfly199 Lighting 27 04-15-2009 05:33 PM
Never got a clear instruction about wiring 130w KC lights jeremy_283 Lighting 24 12-27-2008 12:41 AM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.