DIY 13-relay Fusebox with all terminals, connectors, etc - Miata Turbo Forum - Boost cars, acquire cats.

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Old 07-15-2014, 11:27 PM   #1
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Default DIY 13-relay Fusebox with all terminals, connectors, etc

For sale is a 13 relay, 19 fuse box "kit". The kit includes a brand new, OEM fuse box, 5 8-pin connectors, 120 terminals, 125 seals and 25 cavity plugs.

The fusebox itself is an OEM fuse box, Bussmann 32000 series "Dual Vehicle Electrical Center (DVEC)". They are all custom-made and I believe this one was for a Freightliner semi-truck. I found the fuse boxes cheap on ebay and hunted down all the terminals, connectors, plugs, etc. A lot of retailers had minimum quantities so I ended up buying enough parts for 4 fuse boxes. So now I'm selling 3 and keeping one.

The advantages of using this fusebox vs a generic one is that all the relays and fuses are already connected (see schematic). So you ONLY need to figure out how you want to wire it and crimp 80 terminals. This is in contrast of crimping 40 terminals for a simple 5-relay, 10-fuse box... and that's JUST for hard-wiring it! This one has actual connectors!

What you get:
- Fusebox
- 13 35A/20A 5-pin relays
- 19 different fuses from 5 to 30A (see pictures)
- Wiring diagram that I reverse-enginered (open-source TinyCAD file)
- 5 color-coded and keyed connectors. The connectors only fit one spot on the fusebox
- 5 terminal position assurance things (dunno if they are even needed)
- 60 22-20ga terminals
- 30 18-16ga terminals
- 15 14-12ga terminals
- 15 12-10ga terminals
- 60 22-20ga seals (red)
- 25 18-16ga seals (green)
- 25 14-12ga seals (gray)
- 15 12-10ga seals (blue)
- 25 cavity plugs (I think its 25...)

Weight of the fuse box with all relays and fuses is 2.5lbs. Drawing with dimensions is available here -> http://www.cooperindustries.com/cont...XX-X-sales.pdf

$125 shipped continental US, I have 3 "kits" available. Relays alone are worth almost $30, so this is a steal

Schematic:
[url]http://gaiazov.com/photo/mt.net/Fusebox/FuseBox.png[/img] (also available as TinyCAD file)











Attached Thumbnails
DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5682.jpg   DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5684.jpg   DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5685.jpg   DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5686.jpg   DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5688.jpg  

DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5690.jpg   DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5691.jpg   DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5692.jpg   DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5695.jpg   DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5696.jpg  

DIY 13-relay Fusebox with all terminals, connectors, etc-dsc_5698.jpg  
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Old 07-15-2014, 11:49 PM   #2
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Ohhh ahhh
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Old 07-16-2014, 12:27 AM   #3
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Oh sanp! Dibs and such! This is pretty much exactly what I need for one of my projects. PM incoming!
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Old 07-16-2014, 12:29 AM   #4
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Forgot to mention. To fully assemble the terminals you just need a simple crimper (and a wire stripper is also recommended)

I use this $32 one. You will also need to crimp the power connections, for that, there are different ways.
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Old 07-16-2014, 12:36 AM   #5
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Also, one of your links is all fubar. I assume you were trying to post this uber giant mega image?

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Old 07-16-2014, 12:40 AM   #6
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Do you have a schematic?

Is it expecting dual batteries, which will require to have the connections bridged if using single battery, or is the second set of positive and negative lugs an unfused tap point?

Edit: OMFG ninja posted
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Old 07-16-2014, 01:02 AM   #7
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No its not expecting dual batteries. See the schematic. Its designed so that the top large connector is ground and the other 3 are power. I'm going to wire it so the top connector is always on and the other 3 are going to always on, switched on and the last one, idk.

Look at the schematic. The top connector (pink wire color) is connected to every relay low-power side. The 2nd one (solid red line) powers 4-5 relays (or so), 3rd one (dotted red line) powers another 4-5 relays and the last one powers just a single relay.

There is also one relay that is wired as normally-closed (R11) which is going to be kind of useless.


schematic TinyCAD file and the library that I'm pretty sure you would need
http://gaiazov.com/photo/mt.net/Fuse...ic-tinycad.zip
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Old 07-16-2014, 01:07 AM   #8
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here's a PDF

http://gaiazov.com/photo/mt.net/Fusebox/FuseBox.pdf

soon-ish I'll resize it and make it fit on a single letter page so it can be printed.
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Old 07-16-2014, 04:24 PM   #9
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So how many separate circuits are there?
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Old 07-16-2014, 04:57 PM   #10
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Quote:
Originally Posted by bcrx7 View Post
So how many separate circuits are there?
I'm not sure what you mean exactly... its an oem fuse box, so asking how many separate circuits is like asking how many separate circuits there are in a miata.

But i'll try to answer

There are 10 relays that are wired "traditionally". That is, you ground some pin on the connector, power comes out on some other pin. Of those 10, three are wired together (e.g. grounded by the same pin, those are R1, R2 and R3)

There are 2 relays that have both power in/power out on the connector. That is, you ground a pin a connector, relay is energized, and 2 other pins on the connector are shorted.

Finally there is one relay that is normally closed. That is, when you energize it, it opens. Kind of useless, imo.

The "normal" 10 relays are as follows:
Code:
Connector #1 relays (solid red, bottom on schematic)
R13 (F20, 25A)

Connector #2 relays (dotted red, 2nd from bottom on schematic)
R7 (F11, 15A)
R9 (F12, 15A)
R6 (F9, 15A)
R8 (F10, 15A)
R2 (F2, 20A)


Connector #3 relays (solid red, 3rd from bottom on schematic)
R1 (unfused)
R3 (unfused)
R4 (F5, 20A)
R10 (F14, 15A)

Connector #3 also has 3 fused outputs:
F21 (25A)
F4 (7.5A)
F1 (7.5A)
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Old 07-16-2014, 05:04 PM   #11
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Sent
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Old 07-16-2014, 05:08 PM   #12
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Quote:
Originally Posted by iantboyd View Post
Sent
woot!

one sold, one on hold, one available.
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Old 07-16-2014, 05:11 PM   #13
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Yeah, that's what I meant. How many inputs activates how many outputs. I would be all over this, but not enough circuits for the race car. Mmh need to look into it more!

Quote:
Originally Posted by soviet View Post
I'm not sure what you mean exactly... its an oem fuse box, so asking how many separate circuits is like asking how many separate circuits there are in a miata.

But i'll try to answer

There are 10 relays that are wired "traditionally". That is, you ground some pin on the connector, power comes out on some other pin. Of those 10, three are wired together (e.g. grounded by the same pin, those are R1, R2 and R3)

There are 2 relays that have both power in/power out on the connector. That is, you ground a pin a connector, relay is energized, and 2 other pins on the connector are shorted.

Finally there is one relay that is normally closed. That is, when you energize it, it opens. Kind of useless, imo.

The "normal" 10 relays are as follows:
Code:
Connector #1 relays (solid red, bottom on schematic)
R13 (F20, 25A)

Connector #2 relays (dotted red, 2nd from bottom on schematic)
R7 (F11, 15A)
R9 (F12, 15A)
R6 (F9, 15A)
R8 (F10, 15A)
R2 (F2, 20A)


Connector #3 relays (solid red, 3rd from bottom on schematic)
R1 (unfused)
R3 (unfused)
R4 (F5, 20A)
R10 (F14, 15A)

Connector #3 also has 3 fused outputs:
F21 (25A)
F4 (7.5A)
F1 (7.5A)
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Old 07-16-2014, 08:30 PM   #14
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How much to have this shipped to Canada? I might have someone who is interested!
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Old 07-17-2014, 10:49 AM   #15
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two sold, shipping today.
one on hold until Monday-ish
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Old 07-17-2014, 02:51 PM   #16
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In for a back-up buyer on the last one. I'll PM you.
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Old 07-24-2014, 12:23 AM   #17
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All 3 sold.

However, I'm doing another run. I'll have 2 or 3 this time. It will be at least a week before all the parts arrive. Same deal as before, $125 shipped.

Let me know if you want one!
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Old 07-24-2014, 02:06 PM   #18
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Psssht! And you said they wouldn't sell
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Old 08-01-2014, 05:47 PM   #19
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Received btw. very nice piece. Still not entirely sure what I am gonna do with it but I like it.
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Old 08-01-2014, 05:58 PM   #20
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Yep, got mine too. I need to leave Mr. Soviet some feedback, thanks mang!
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