Hooking up a 16awg Switching wire.

[Rugged Path]

I am putting in an Eastern Beaver PC-8 fuse holder with associated wiring harness to my O2 R1150.
Two gone to battery and the final blue wire to a switchable connection. This will allow me to move connections to it from battery (spotlamps, usb, heated clothing and now camera system).
Normally you piggyback of park or rear lamp but, as this 16 gauge is thicker, don't know whether amperage may be too much.

Anywhere else under the seat or the fuse box to hook into?

Sent from my MI 9 using Tapatalk

 

[Two wheels good]

Are you sure 16awg is specified? The relay it's switching is likely to draw less than amp and a 16awg cable has a max rating of 7-10amps approx according to one web page I'm looking at.ing relay.

BTW Where are you installing the unit? On a metal plate attached to air-box lid maybe?

 

[Riceburner]

As said - the switching circuit should be feeding a relay, not the whole shebang of auxiliary circuits.

I tend to use the instrument bulb circuits for supplying a switch current to any auxiliary relays. On the Rockster each instrument illumination bulb (for some reason) has it's own feed circuit from the loom on the main chassis, so you can pick and choose which bulb is least important to you (in the event of the Aux switching causing any issues).

 

[Rugged Path]

https://easternbeaver.com/Main/Wiring_Kits/Fuseboxes/PC-8/Installation/pc8-wiring.jpg

Attached is the Eastern Beaver wiring circuit for the PC-8. It is protected by relays and fuses already.

 

[The Other PaulG]

That's interesting.

As a non-electrician let me ask a numpty question.

On the wiring diagram, I can see how the red switched positive activates the +ve bank of the connectors, whilst the -ve side is wired back to the battery.

That makes sense - I can see how the current wold flow through that set-up once the relay is activated, but what is the additional, non-switched second positive wire for (the 14AWG wire)?

 

[Greg Masters]

And how do you switch outputs 3-8?

 

[Two wheels good]

Panasonic Relays spec sheets I've checked state operating current of 117mA to 168mA for different 12V automotive relays.
So the 16awg wire will handle it easily. Will the oem wiring on the brake light or parking light circuit cope with the extra? I'd think so.
But if concerned you could check the oem wiring spec and see what cable size is used there. Or if your headlight is always on you could tap into that as it will have a higher current capacity.
Maybe 16awg is recommended to minimise resistance/voltage drop in the switching circuit.

 

[fink]

A you can use 1mm normal (14s wires) wire single wire which can take about 9 amps or if you prefer 1mm thin wall which is rated for 16.5 amps as a switching wire.

Take the switching feed from the front sidelight bulb. Remember it is only to power the relay not the fuse box.

 

[mikeyboy]

As I see it from the left top,the 1st 6 are switched live via relay,
Last 2 are permanent fused live
Lower row is earth bus..
In answer to original question the blue wire could be fed from pretty much any ign switched feed ,side light,instrument light etc

 

[fink]

Two of the terminals in the fusebox are wired as permenant lives, which is what the 14awg red wire is for. Ther rest are for the switched circuits.

 

[Ian J Hartley]

but what is the additional, non-switched second positive wire for (the 14AWG wire)?

For additional constant power from the battery.

 

[mikeyboy]

That's interesting.

As a non-electrician let me ask a numpty question.

On the wiring diagram, I can see how the red switched positive activates the +ve bank of the connectors, whilst the -ve side is wired back to the battery.

That makes sense - I can see how the current wold flow through that set-up once the relay is activated, but what is the additional, non-switched second positive wire for (the 14AWG wire)?

You might want a non switched power supply for an aux socket,to charge stuff when stopped such as Bluetooth intercom etc

 

[The Other PaulG]

You might want a non switched power supply for an aux socket,to charge stuff when stopped such as Bluetooth intercom etc

Thanks, got it. I had not spotted the break in the PCB between fuses 1-6 and 7-8.

Makes perfect sense now.

 

[Rugged Path]

The cover for this fuse box shows that two feeds are fed direct from the battery (always live) and the other 6 are switchable (ignition on) via the blue wire connection.

 

[Riceburner]

I really need to get one of these boxes and tidy up the mess of auxiliary connections under the seat on the Rockster....

 

[Beemerman59]

I’ve had the same module fitted to my 1200 since I bought it in 2009. I have a power socket connected to the non-switched side to defeat the canbus limitations. I use the tail light as a switch - I found that an easier cabling route than getting into the headlight unit. Satnav, heated gear etc is powered off the switched side.

 

[adventuredon]

DIY Options...durite fuse box with fuses or something similar
https://www.ebay.co.uk/itm/22394187...602PCht0e-8MaoqF1S6oR4ro2Km8cZEoaAtz7EALw_wcB

 

[mikeyboy]

DIY Options...durite fuse box with fuses or something similar
https://www.ebay.co.uk/itm/22394187...602PCht0e-8MaoqF1S6oR4ro2Km8cZEoaAtz7EALw_wcB

Indeed,one could soon get the same results with a £10 fuse box and a £4 relay.
But where’s the fun in that?

 

[mikeyboy]

As a product,I quite like the Denali power hub,it’s well made, robust and there is space to make a tidy installation internally,
I think the price is a bit strong though.
Then again,you could buy a Pdm unit for less than £100 quid a few years ago,I think they’re double that now,someone’s taking the piss!