I want to run quite a few additional electrical devices on my Tenere
- heated grips
- Gerbing heated jacket
- auxilliary spotlights
- Garmin Zumo GPS
- DIN socket to run power into a tank bag

All of these need fuses and the easy way to provide fused power is to connect a Centech fuse box to the battery terminals, then run the wires from there to the devices. You can buy the Centech fuse box at �40 from Nippy Norman.


The Centech unit holds five fuses, the inner three handle two connections each, the outer two handle one
connection, so up to eight devices can be powered at once with 5amp, 10amp, 15amp or 20amp fuses.

But in all cases I wanted switchable power--in other words, when the ignition is off, the devices are off. The way to do this is to insert a relay between the positive battery power and the fusebox. The relay is activated by a feed coming from the sidelight near the instrument panel.

The four relay terminals are labelled 30, 85, 86 and 87. These are connected as follows:
- 30: positive battery terminal
- 85: cable from sidelight
- 86: earth (or negative battery terminal)
- 87: Centech unit


There's space for the Centech unit under the seat with the relay tucked away next to the positive battery terminal.
The thin red wire coming from the front is the feed from the sidelight.


All the cable lengths were worked out in advance whilst the combo was assembled in the warmth of the kitchen.
All that's missing from the wiring is the feed from the sidelight into the relay. Terminal spades were insulated
before fitting.


The finished installation. Most of the devices will be simple plug ins to each side of the fusebox, the exception
will be the aux lights which will also have an on/off switch. Simple.

Tim

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