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[GMCnet] Relay and connector [message #270907] Sat, 31 January 2015 21:23 Go to next message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
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Senior Member
G'day,

I stumbled on to this today and reckon it's great relay / connector / pigtail combination for various and sundry items you want to
power on the GMC.

Relay:

Tiny URL: http://tinyurl.com/lxymk2k

Full URL:

http://www.oreillyauto.com/site/c/detail/BWD0/R4153/N0956.oap?ck=Search_relay+kits+-+universal_1217304_-1&keyword=relay+kits+-+unive
rsal

Note that this relay is 24VDC / 30 AMP therefore at 12 VDC it will handle 60 AMP that is plenty for most things in a GMC.

Connector / pigtail:

Tiny URL: http://tinyurl.com/k6lp3zp

Full URL:

http://www.oreillyauto.com/site/c/detail/BWD0/PT5584.oap?year=1975&make=Oldsmobile&model=Custom%2BCruiser&vi=1217304&ck=Search_pt558
4_1217304_-1&keyword=pt5584

Note that when used in conjunction with the relay above you have a sealed unit. That's excellent considering how wet things get
under the GMC hood!

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Relay and connector [message #270909 is a reply to message #270907] Sat, 31 January 2015 21:55 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
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Rob,
The voltage is likely for the coil, not the contacts.

Also the current rating of the relay does not change with voltage. It will be 30 amps at either 24 or 12 volts going though the coil. And actually on DC contact voltage you should de-rate the contact current as high voltages can sustain an arc when the contacts open.

I'm not an Engineer so correct me if I'm incorrect.


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: [GMCnet] Relay and connector [message #270916 is a reply to message #270909] Sat, 31 January 2015 23:17 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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Registered: January 2004
Location: Hebron, Indiana
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You are correct and I sure that is a 24 volt col relay.

Also it shows up here as being $42.00 That is a bit steep for my liking.



Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] Relay and connector [message #270917 is a reply to message #270909] Sat, 31 January 2015 23:18 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Location: Sydney, Australia
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Senior Member
Bruce,

I'm electrically challenged so it's highly likely that I AM WRONG, not you!

I've found the BWD website and I'll see if I can find a relay like the one I found that runs on 12 VDC.

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: Bruce Hislop

Rob,

The voltage is likely for the coil, not the contacts.

Also the current rating of the relay does not change with voltage. It will be 30 amps at either 24 or 12 volts going though the
coil. And actually on DC contact voltage you should de-rate the contact current as high voltages can sustain an arc when the
contacts open.

I'm not an Engineer so correct me if I'm incorrect.
--
Bruce Hislop


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Relay and connector [message #270920 is a reply to message #270917] Sun, 01 February 2015 00:20 Go to previous messageGo to next message
Bullitthead is currently offline  Bullitthead   United States
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What Bruce said is correct.

Terry Kelpien ASE Master Technician 73 Glacier 260 Smithfield, Va.
Re: [GMCnet] Relay and connector [message #270922 is a reply to message #270916] Sun, 01 February 2015 00:41 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
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Location: Sydney, Australia
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Ken,

See that proves I'm electrically challenged.

Let's see if I can find a 12VDC model and what it costs.

I really liked the sealed feature because as you know up under the hood of a GMC is kinda wet.

I reckon it would be a good relay for the Ford Azure vacuum pump and I would also use it for the Viair 480C compressor in Double
Trouble's and The Blue Streak's Power Level system.

Viair 480C
- 12-Volt
- Permanent Magnetic Motor
- Duty Cycle: 100% @ 100 PSI (50% @ 200 PSI)
- Max. Working Pressure: 200 PSI
- Max. Air Tank Size: 5.0 Gallon
- Max. Amp Draw: 23 Amps
- Dimensions: 10.87"L x 4.2"W x 6.75"H
- Net Weight: 11.05 lbs.

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: Ken Burton

You are correct and I sure that is a 24 volt col relay.

Also it shows up here as being $42.00 That is a bit steep for my liking.

Ken

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Relay and connector [message #270927 is a reply to message #270907] Sun, 01 February 2015 03:36 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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Registered: January 2004
Location: Hebron, Indiana
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I had a block of those with sockets in my garage for years. I must have thrown out 15 of them during my last clean up this fall. What exactly do you want to do? I can dig around in my junk box and see if I have any left in my basement. Does it need to have a socket? Does it need a mounting tab? Are 30 amp contacts heavy enough? I have a whole bunch of miniature ones taken out of GM cars that are good for 30 amps. They do not have sockets or mounting tabs because they came out of fuse panels in the junk yard.







Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] Relay and connector [message #270937 is a reply to message #270907] Sun, 01 February 2015 08:07 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
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I find DigiKey a great supplier for electronics. Prices are good, and mostly in-stock and shipping to Canada is fast and cheap.

I don't know how they do it since they are in Theft Falls ND, I can order up 8pm central time (9pm my time) and have it to my office by 9am the next morning and only charge $8.00 bucks shipping with all the duty and customs included. Well that was when they used Purolator Courier, lately they changed to Fedex which means next day arrives about the time we are closing for the day.. or maybe end of next day.

Here is a table of automotive cube relays at Digi-Key:
http://tinyurl.com/k23cocd

Here is one rated at 70Amps 12Vdc for $7.03 and shows stock of about 1,000. The relay is fully sealed but its terminals are not.
http://www.digikey.com/product-detail/en/CB1AH-M-12V/255-2079-ND/1242027

I have not had any issues running exposed terminal relays on the ground plate under the hood. Sure they can get wet, but they soon dry out and I don't drive in it the winter with exposure to salt. Plus I can easily get my voltmeter on the terminals for troubleshooting.


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: [GMCnet] Relay and connector [message #270949 is a reply to message #270907] Sun, 01 February 2015 10:20 Go to previous messageGo to next message
k2gkk is currently offline  k2gkk   United States
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Those contact ratings (30 Amp) are absolute! 30 A, whether switchIng 1 Volt or 50!

Mac in OKC


Sent from my iPad

> On Jan 31, 2015, at 21:20, Robert Mueller wrote:
>
> G'day,
>
> I stumbled on to this today and reckon it's great relay / connector / pigtail combination for various and sundry items you want to
> power on the GMC.
>
> Relay:
>
> Tiny URL: http://tinyurl.com/lxymk2k
>
> Full URL:
>
> http://www.oreillyauto.com/site/c/detail/BWD0/R4153/N0956.oap?ck=Search_relay+kits+-+universal_1217304_-1&keyword=relay+kits+-+unive
> rsal
>
> Note that this relay is 24VDC / 30 AMP therefore at 12 VDC it will handle 60 AMP that is plenty for most things in a GMC.
>
> Connector / pigtail:
>
> Tiny URL: http://tinyurl.com/k6lp3zp
>
> Full URL:
>
> http://www.oreillyauto.com/site/c/detail/BWD0/PT5584.oap?year=1975&make=Oldsmobile&model=Custom%2BCruiser&vi=1217304&ck=Search_pt558
> 4_1217304_-1&keyword=pt5584
>
> Note that when used in conjunction with the relay above you have a sealed unit. That's excellent considering how wet things get
> under the GMC hood!
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Re: [GMCnet] Relay and connector [message #270972 is a reply to message #270907] Sun, 01 February 2015 16:19 Go to previous messageGo to next message
midlf is currently offline  midlf   United States
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Registered: July 2007
Location: SE Wisc. (Palmyra)
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Senior Member
reguarding wet conditions and the common Bosch type 30A relay, always mount the terminals down. Otherwise the relay case will suck water and fail the relay. Ask my neighbor how he knows this. <grin> A good anticorrosion electrical compound will prevent corrosion on the terminals and connectors of these relays.

Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: [GMCnet] Relay and connector [message #270981 is a reply to message #270927] Sun, 01 February 2015 18:28 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Ken,

Thanks for your kind offer, however, I want to find a relay that is a sealed unit when the pigtail is plugged in that will handle a
12 VDC / 40 AMP load actuated by a 12 VDC coil.

See line three in my signature below.

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426



-----Original Message-----
From: Ken Burton

I had a block of those with sockets in my garage for years. I must have thrown out 15 of them during my last clean up this fall.
What exactly do you want to do? I can dig around in my junk box and see if I have any left in my basement. Does it need to have a
socket? Does it need a mounting tab?
Are 30 amp contacts heavy enough? I have a whole bunch of miniature ones taken out of GM cars that are good for 30 amps. They do
not have sockets or mounting tabs because they came out of fuse panels in the junk yard.

Ken

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Relay and connector [message #270983 is a reply to message #270981] Sun, 01 February 2015 18:38 Go to previous messageGo to next message
Dave Mumert   United States
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Registered: February 2004
Location: Olds, AB, Canada
Karma: 0
Senior Member
Hi Rob

Check here.
http://www.waytekwire.com/item/75610/ISO-MINI-WEATHERPROOF-RELAY/
http://www.waytekwire.com/item/75601/SKIRTED-MINI-RELAY-20-40A-SPDT/
http://www.waytekwire.com/item/75615/MINI-ISO-RELAY-12V-SPDT-40A-NO/

Dave Mumert

> -----Original Message-----
> Subject: Re: [GMCnet] Relay and connector
>
> Thanks for your kind offer, however, I want to find a relay that is a sealed unit when the pigtail is plugged in that will handle
a
> 12 VDC / 40 AMP load actuated by a 12 VDC coil.
>
> See line three in my signature below.
>
> Regards,
> Rob M.

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Re: [GMCnet] Relay and connector [message #271013 is a reply to message #270907] Mon, 02 February 2015 08:48 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
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I wired my shiny new ViAir in through a relay I found at O'Rielly's in a blister pak. Rated 30 amps, NO, blade connectors, and a mounting tab on top. It was substantially less than ten bux, I believe with discount just under five. So far (3k miles) it has worked flawlessly. I tossed the package, don't have the part number. I suspect you'd find it or its clone on the electrics aisle in AutoZone and Advance as well.

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: [GMCnet] Relay and connector [message #271021 is a reply to message #270907] Mon, 02 February 2015 09:23 Go to previous messageGo to next message
bpimm is currently offline  bpimm   United States
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http://WWW.rallylights.com Has several varieties of the Hella sealed relays and pigtails.

I have been using these for 10 years with no failures yet.https://www.parts-express.com/cat/12v-relays-sockets/399


Brian & RaeDean 1973 26' #383 Washougal WA
Re: [GMCnet] Relay and connector [message #271056 is a reply to message #270907] Mon, 02 February 2015 16:13 Go to previous messageGo to next message
John Heslinga   Canada
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May I suggest wiring the air compressor and vacuum pump in this manner. Using Relays, breakers, and appropriate sized wires. This way power to these devices will not go through the ignition switch. (Yet are controlled by the ignition switch ) The breakers protect the wires and system. The Relays are actually better sealed from the elements than original factory relays. (They will drain condensation) However do not install them with the wires up.

You will notice that I also rewired the HVAC Fan to ensure it gets appropriate electrical supply.

A Vacuum pump Relay and Breaker can be easily added.
Check out the entire album of pictures to see how.
http://www.gmcmhphotos.com/photos/viair-air-compressor-and-hvac-fan-power-supply/p55746-compressor-and-hvac-relays-and-breakers-overview.html


John and Cathie Heslinga 1974 Canyonlands 260 455, Manny tranny and 1 ton, 3:70 LS, Red Seal Journeyman, DTE, BEd. MEd. Edmonton, Alberta
Re: [GMCnet] Relay and connector [message #271063 is a reply to message #270907] Mon, 02 February 2015 17:00 Go to previous messageGo to next message
Broham is currently offline  Broham   United States
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I agree with the 30Amp rating.

GM used weather sealed relays on the firewall of full sized PU and SUV from the late 80's well into the 90s. Every time in the the men's mall. they are free or $1 at the most.

Here are some pictures.

The relays and weather proof connectors:
http://www.gmcmhphotos.com/photos/member-galleries/p57159-sealed-relay-socket-from-gm-pick-up.html

Mounting bracket for the 4 pack of relays
http://www.gmcmhphotos.com/photos/member-galleries/p57160-sealed-relays-from-gm-pickup.html

12 Volt power distribution
http://www.gmcmhphotos.com/photos/electrical/p57158-electrical-relay-and-power-distr-from-gm-pickup.html



Todd Owner of a 1976 Eleganza II 26’ other toys: 93 Vette 84 Goldwing and gone but not forgotten 72 CB750 Chopper 96 Caprice Classic 34 Ford roadster 94 Fleetwood
Re: [GMCnet] Relay and connector [message #271066 is a reply to message #271063] Mon, 02 February 2015 17:43 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Todd,

Nice find!

Unfortunately getting to men's mall's in the USA will cost a bit more than $1 ;-) - are there any numbers on those relays or
pigtails?

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426


-----Original Message-----
From: Todd Perkins

I agree with the 30Amp rating.

GM used weather sealed relays on the firewall of full sized PU and SUV from the late 80's well into the 90s. Every time in the the
men's mall. They are free or $1 at the most.

Here are some pictures.

The relays and weather proof connectors:
http://www.gmcmhphotos.com/photos/member-galleries/p57159-sealed-relay-socket-from-gm-pick-up.html

Mounting bracket for the 4 pack of relays
http://www.gmcmhphotos.com/photos/member-galleries/p57160-sealed-relays-from-gm-pickup.html

12 Volt power distribution
http://www.gmcmhphotos.com/photos/electrical/p57158-electrical-relay-and-power-distr-from-gm-pickup.html

Todd

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Relay and connector [message #271067 is a reply to message #271066] Mon, 02 February 2015 18:12 Go to previous messageGo to next message
Neil is currently offline  Neil   United States
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Senior Member
Rob,

I have used these guys and been satisfied. They have lots of neat stuff

http://www.delcity.net/store/Relays-&-Power-Distribution/


Neil
76 Eleganza now sold
Los Angeles
Re: [GMCnet] Relay and connector [message #271069 is a reply to message #271066] Mon, 02 February 2015 18:32 Go to previous message
Broham is currently offline  Broham   United States
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Location: Detroit, Michigan
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One the top, it says Bosch 12077864 800 and on the side there are the numbers "0 332 208 150" with a "982" in an oval. There are no marking on the connectors.

I have to believe GM/Holden used them on many other vehicles from the late 80s into the 90s. I would start with cars and trucks that have their engine controllers inside the cabin. These forced them to use lots of weather proof relays under the hood.


Todd Owner of a 1976 Eleganza II 26’ other toys: 93 Vette 84 Goldwing and gone but not forgotten 72 CB750 Chopper 96 Caprice Classic 34 Ford roadster 94 Fleetwood
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