Blade Fuse Panel technical forum Latest Topics

PDF installation manual?

Wed, 02 Jul 2025 21:33:12 +0000

I see you offer a PDF manual for the CDI. Do you have something similar for the fuse panel upgrade? I couldn't find it on your site.

Turbo Power Link to Terminal 16

Tue, 31 Dec 2024 23:15:43 +0000

I saw the post regarding a power feed for the Turbo fuel pump fuse position (position 16). In my 79 930, there are already two wires feeding into Terminal 17 (A-Side) and it seems to be a pretty tight fit, so I am unsure I can get the Connecting Rail installed. The other complicating factor is that the gap between the two terminals may be slightly wider than the Connecting Rail supplied from Porsche. Would you suggest pulling a power source from Terminal 15 instead? Appreciate your suggestions here. Thanks.

Toby Pennycuff

Debugging headlight relay wiring

Tue, 27 Aug 2024 12:52:33 +0000

Hi Jonny,

I have just installed a front fuse panel in a 1980 930. Everything is working OK except the headlights. I have removed the prior J West relay kit and checked all connections. The relays are clicking, so I am confident of earthing. The lights aren't behaving properly in terms of ignition on/off and light switch position so I suspect a switch logic problem between the original wiring and new panel. I have found the attached schematic on a previous discussion topic and will be able to debug with a bit more info. Can you please confirm the following terminal numbers:

T43 = H

T15 = 1

T13 = 2

T11 = 3

T9 = 4

Can you please advise the fuse board terminal numbers for T10, T12, T14 and T16? Also, where is T33, which supplies +12V when T43 (H) is not used?

Many thanks, Peter.

Bench testing headlight relay circuit.

Wed, 11 Dec 2024 10:36:22 +0000

Here's a short video of how to test the headlight relays on our fuse panel.

1) Connect a ground wire to the round gold plated terminals near the relays.

2) Connect a 12V feed (use a fuse!) to the 'H' terminal.

3) You need a test bulb - one end connected to 0V, the other as a flying lead.

4) A 12V flying lead.

VIDEO-2024-12-11-10-17-36.mp4

Terminal is not connected to fuse (faulty panel?)

Sat, 10 Aug 2024 16:15:57 +0000

Hi Johnny,

I purchased the 74-89 front blade panel from Pelican parts. Upon initial testing I noticed one of my headlights wasn't coming on. After checking the white wire from my headlight switch to the panel, I noticed the terminal is not making contact to the fuse. If I connect the wire directly to the fuse top or bottom, I get a circuit (headlight comes on) but if I connect to the terminal it's dead.

I think I may have a defective board. Please advise.

Thank you,
Duane

Leaking Voltage?

Thu, 27 Jun 2024 15:31:18 +0000

I'm trying to troubleshoot a new fuse panel on a 1973 Porsche 911 and can't seem to get past the first two fuses. The "tops" of both 1 & 2 have 12.7V directly from the battery, as they should. I thought it was weird that without the fuses installed, only the first fuse's LED indicator light turned on. I did some investigating and see that it will only light when there is a load on the "bottom," so maybe this isn't an issue.

However, I also checked for voltage at the various posts. As noted, the top of Fuse 1 registers 12.7V. With no fuse installed, the bottom registers 1.9V. I pulled the bottom wire and again tested for voltage. The wire itself showed none, but the bottom post now registered 11.25V. Reinstalling the wire caused the voltage to drop back down to 1.9V and the LED to light.

I tried the same tests on Fuse 2. The only difference I found was that the voltage remained at 11.25V at the lower post regardless of whether it's wire was attached or not. There was no voltage at the wire.

Obviously, both bottom posts jump to 12.7V when I install the fuses.

So far nothing has blown up or caught fire, but I'm concerned about voltage appearing where I don't expect it. Your assistance would be greatly appreciated.

Rich

1968 911L, running a 1977 911S power train and wiring, utilizing the panel upgrade

Mon, 18 Sep 2023 17:36:03 +0000

Hi All,

i have a 1968 911L, backdated/forward dated to 73 RS. Running gear and power plant from a 1977 911S. All new wire harness from restoration design.

I was able to swap out the existing wires to the new fuse panel. I’m having a couple of issues as the harness was modifies by the previous owner.

Can someone share a clear fuse/wire diagram?

Best

rex

Existing headlamp relays

Tue, 14 Feb 2023 00:09:29 +0000

For a 911fpr retrofit fuse

Buy cutting the old relay wires (remove the relay) the only two wire left are the white and yellow from the headlight switch and you got to put them in the 1 and 3 fuse of the right panel. The olds relays were powered directly by thé battery and use to deliver power to the number 1 and 3 fuse (panel right). With this modification there is not power anymore to the 1 and 3……..does the power come from a source « inside » the fuse bar ?
thanks

sorry picture diagram is in french

J jaune =y yelloy.
B blanc= white

Terminal question

Fri, 10 Feb 2023 16:54:34 +0000

Hi, my old fuse panel had 2 upper terminal for one fuse so 4 wires Could fit in those 2 holes (2 wires per hole). I’ts impossible to put the 4 wire in a single hole terminal of the new retrofit fuse bar.

So my question is : when an internal bridge is present on the upper panel between 2 or more fuse terminal ( like the fuse #4-5-6) can the upper wires can be put on any bridged terminal ?
thanks !

Important info: Fuse Panel Installation on Turbo cars

Mon, 04 Jul 2022 15:58:47 +0000

On some Turbo models, there is an extra link added between Fuses 16 and 17 (fuse number 1 is at the front of the car). Most of our links are internal to the panel (indicated by the white marks) but this link needs to be added. As it is supplies power to the fuel pump it is pretty important!

87 911 Carrera 3.2 headlamp circuit (100w bulbs)

Wed, 27 Apr 2022 13:26:26 +0000

I have your fuse panel ver 1.3 installed up front on my 87 911. The previous owner may have upgraded the headlamp bulbs. The low beam (dipped) circuit (position 1 & 2 to the left of the H and headlamp relays) keep blowing their 7.5 amp fuses. My Porsche mechanic insists on replacing the 7.5 fuses with 15 amp fuses for those two positions. Is the purpose of the "H" lead to correct this situation? If I run a lead from the battery to the H position, will I be able to drop back down the the proper "8amp Max" fuses at position 1 & 2? I've read your documentation on the H position but it doesn't explain if this is a way to mitigate blown fuses on the low beam circuit. Final question...what ga wire should be used from the battery to the H lead? Thank you.

1983 911SC Rear Panel Fuse Block Install

Mon, 04 Apr 2022 17:50:32 +0000

My Front Panel installation went very smoothly and everything works as it should!! I do have a question regarding the Rear Panel Install. On page 9 of your installation instructions, you indicate a possible wire link may be needed on a 3.2 Carrera? I noticed on my 3.0SC there is a copper bridge from 3-2, where the retrofit panel shows the three white lines. I believe I do NOT need to add the wire link on my 3.0, correct?

I am VERY pleased with your product. Thanks for the GREAT quality.

Thank you,

Tom Yarbrough

Longmont, Colorado

rear fuse panel 1988 911 3.2L

Wed, 19 Jan 2022 00:18:04 +0000

In reading the instructions for installing the rear fuse panel [911 Engine Bay Fuse Panel 1969 - 1989], it starts out with - "A wire link may be needed on a 3.2 Carrera. When you remove your original fuse block, check the back. If terminals 1 and 2 are linked, fit a wire link after installation." I've installed the new panel, and I am testing if all is working. So far, the 'rear window heating' (fuse #3) is working, but the 'fan engine compartment' (fuse #2) and 'fan passenger compartment' (fuse #1) are not. From the attached photo, should I be adding the wire link or not? I did not add it because it was not included (but happy to make one).

can the blade fuse retrofit be used for a 1967 912?

Tue, 28 Sep 2021 20:31:47 +0000

Hello! Love the blade retrofit fuses. Can these be used for an earlier car? I have a 1967. Please advise.
regards,

Fuse panel 1.0

Fri, 30 Jul 2021 07:34:39 +0000

Finally getting around to installing my issue 1.0 fuse panel into my 70T.

Question re fuse 4 for headlights. On the original panel 3 and 4 on the smaller (8 fuse) panel are bussed. On the CR unit they aren’t. However input 4 (T9 on PCB) is connected to both the fuse leg AND the output of the relay. How can that be? Inputs 3, 1 and 2 don’t connect to the fuse leg and go only to the respective relay. Inputs 1 and 2 are bussed together same as the original.

So I’m not sure how to fix this? Thoughts?

Rear fuse panel - 1970 911T

Sun, 23 May 2021 10:32:00 +0000

I've just finished installing the rear fuse panel in my 1970 911T (I'll tackle the front soon). One thing I noted is that the order of the line wires had to be flipped (ie I had to move 3->1 and 1->3) in order for the bussed line connections to be correct - ie 1&2 are bussed on the original panel, but 2&3 on your panel. Obviously also had to flip the load wires to match. Not a big deal, but easy to miss if you aren't paying attention. Car started up fine and all seemed well. Yay!

One question - I note there's no grounding of the rear fuse panel, so interested in understanding if this is indeed correct, and if so then how do the LED's work?

Cheers,

Gavin

Sydney, Australia

Electric window fuseway

Sat, 06 Feb 2021 17:42:54 +0000

Hi, just installed replacement fuse board on my uk 74 911. I have electric windows wired in to fuse 16 with a copper link to fuse 15 which is internally linked to fuse 14 and 13 which all become live with ignition on.

I am wondering way their is no internal link to fuse 16 as well? as I have to leave copper link in for windows to work off ignition circuit.

Regards Mark

New product! Upgraded fuse panels for Ferrari 308

Tue, 14 Jul 2020 06:31:10 +0000

We've just added our updated and improved modern blade fuse panels for Ferrari 308 models to our online shop.

We've been making these fuse panels for a while and they have proved very popular with Ferrari specialists. They solve the same issues as cured by our Porsche fuse panels, with failing old-style fuses causing all sorts of issues with the new large-blade rather than mini-blade fuses, which give a bigger contact area, leading to better current flow and enhanced reliability.

Ferrari 308 models also suffer from melted left and right fuse panels, so these are a perfect replacement. The new design also eliminates the failure in the original holder caused by the riveting.

The factory terminal linking (known as bussing) is integral to the new design. The panels have our familiar LED blown fuse indicators and come with the mounting kit of rear gaskets, clear front covers and a pack of fuses. They are entirely plug and play, so an easy DIY fit!

Note: Some cars may need to bridge terminals 2 and 3 on the left panel with a wire or solder link. Check the back of your original white block on removal.

About our upgraded fuse panels

Fri, 24 Apr 2020 13:08:37 +0000

Jonny's Youtube video on our blade fuse panels explains the origin of these products, the improvements brought by our upgraded boards and looks at installation. It's a must-watch for anyone installing this must-have product. Accept no cheap imitations - this is the original and best!