Aftermarket relay / fuse box?

Not sure what you're referring to, but I just had a look at ebay's most expensive fuse set-up and came up with this: http://www.ebay.com.au/itm/PROLEC-20-WAY-FUSE-BLOCK-BOX-HOLDER-KIT-MINI-BLADE-CARAVAN-DUAL-BATTERY-12V-NEW-/291730596321?hash=item43ec7fa1e1:g:cUwAAOSwgY9Xe0J9
Is that what you were referring to?

EDIT: Here's another option: http://www.12volt.com.au/redirect.html?a=/General%20Htmls/webcat2003/breakers.html

The Narva units are also popular and good quality

Narva fuse boxes

And another one: http://www.jaycar.com.au/10-way-blade-fuse-block-with-led-indicators/p/SZ2008
I run all the 4WD and camping accessories, including driving and fog lights, 2 x fridges etc through it. Power comes from the split battery setup. 100 amps max with ten x 30 amp max circuits.
Phil

Thanks for the replies. I'm sure this thing had relays as well as fuses - like maybe 5 relays and 10 fuses - really easy to hook up to a single power supply then have all your aftermarket systems running out of it. Kind of like the car's OEM box but neater ;0)

The sort of module you seek is often fitted into production vehicles. You may find a suitable one at an auto wreckers at a cheap price.

I found an ideal unit that mounts on the battery post and contains three heavy duty fuses for the alternator and main loads.

I don' know how much you're prepared to spend, I am using a Blue Seas 150 Safety Hub in my ute canopy @ $170.00 from Whitworths. Quality marine grade product.
Regards

A few years ago if you wanted a decent fuse box you had to build it from parts or buy something that came out of an existing vehicle.

But in the last few years there have been a lot of choices available.

All the marine stores have a selection .... yes the Bluesea ones are nice. same as the Bainbridge item.
Both Jaycar and Altronics have a nice variety and different from each other.
The trade auto electrical suppliers Hella Narva and Ashdown have selections.
Some of the less well known autoelectrical wholesalers like Onesource have some very nice stuff.

One thing to remember is that you can get mounting blocks for square automotive realys that lock together in a strip and you can buy relays that plug into them that have on board blade fuses.

These are great for making headlight upgrade relay sets.

Getting a realy good comoning block remains a bit of a fiddle.
some of the lightweight fuseboxes have both hot and cold common strips.
For the heavier stuff I buy brass bar from George Westons and get busy drilling and tapping.

For a headlight upgrade relay set I will build a common by coming 6mm2 into a non insulated 6mm2 crimp barrel and twist together 4 x 1.5mm2 into the other side and crimp it, cover in adhesive lined heatshrink.
the 1.5mm2 lines go into the fused feeds of the relays.

there are some great choices out there.
cheers