Relay Fuse Box Featuresa racing-inspired integration of relays and fuses
The AFP12-R racing fuse box gives you high-current protection for your switches, relays, and loads. With smart blade fuses that glow when they blow, you’ll save time and effort when identifying tripped circuits. There’s a single 5A control fuse to protect your switches and 11 individual power fuses. What’s more, all circuits that are internally pre-wired with high temperature GXL and/or TXL, which is rated 125°C (257°F).
An MGI pre-wired racing fuse panel has 3 built-in relays and can incorporate up to 8 external relays and loads with minimal wiring involved. But what’s with all the relays? With most race cars, standard OEM accessories are not needed and are stripped from the vehicle. You’re left only with high-current accessories like cooling fans, methanol pumps, HID lights, etc., which need relays for proper operation.
Unlike most other custom fuse boxes that are made of plastic, MGI fuse panels are fabricated from lightweight aluminum. All you need to do is wire your loads and relays to the always reliable screw terminal strips. With 12 fuses and 11 load circuits, that’s a lot of wiring. But don’t worry — our racing fuse box is internally pre-wired and ready to go.
How does it work?conveniently pre-wired with relay control and power circuits
11 battery-direct circuits are primed to protect and link together your fuses, switches, and loads with minimal wiring involved. That’s because MGI’s racing fuse box integrates both CONTROL and POWER circuits, greatly simplifying the task of wiring external relays for all your high-current devices. Simply mount up to 8 external relays near the AFP12-R and connect to the appropriate labeled terminal.
Note — LED control switches cannot be used with ground-activated, built-in relays
Relay Fuse Box Wiring Diagramshow to install your racing relay fuse panel
Install the AFP12-R inside the cabin of the vehicle (under the dashboard). Secure the ground wire to the chassis. Then, connect your battery and main fuse to the AFP12-R. Don’t forget to connect your arming/kill switch to enable/disable all circuits. See the AFP12-R installation manual for more details.
Connect your starter
Connect your starter solenoid using an ignition pushbutton or key switch. Refer to the appropriate wiring diagram. In either case, the ignition switch must control an external relay, which, when activated, powers the solenoid and starts the vehicle.
Connect your loads
Use the tables to wire all external switches, relays, and loads. Since there exists plenty of possible wiring schemes, our tables show two contrasting cases when it comes to the number of relays used: a) Incorporating relays into ALL 11 circuits (including the 3 built-in relays), and b) Using only the minimum 3 built-in relays with the remaining 8 non-relay loads.