Buy Motorsport Power Distribution in Australia
If you are looking to buy motorsport power distribution in Australia, 12Volt Motorsports stocks the Haltech PD16 PDM, TE SurLok high current connectors, sealed relay and fuse boxes and FIA and Cartek battery isolators in Melbourne, shipped Australia-wide. Power distribution is the backbone of the electrical system: get it wrong and the result is voltage drop, heat, unreliable ECU operation, fuel pump and fan problems and faults that are miserable to trace. We design and wire it in house on real builds.
Power Distribution Range
PDM or Relays and Fuses?
The Haltech PD16 replaces a board of relays and fuses with 16 software controlled outputs, each current monitored with programmable limits, logic and diagnostics over CAN. On a fresh race build it is the cleanest possible wiring. For simple circuits and budget builds, a conventional relay and fuse box still does the job properly, and many builds run a hybrid: PDM outputs for the controlled circuits, relays and fuses for the simple ones. Whichever way you go, the grounding strategy matters as much as the feeds: battery, engine, chassis and ECU grounds all need proper high current return paths.
High Current Done Properly
Main feeds carry the whole system, so they get bolted connections, not push fit pins. TE SurLok gives a serviceable quick connect on battery and PDM feeds at 120A and 200A, and the SurLok distribution block splits main power cleanly. Wire branch circuits in 12 and 14 AWG Tefzel, and step up to battery cable beyond 27 amps. Do not size from current draw alone: long runs, pumps, fans, charge wiring and starter feeds need voltage drop checked.
For a quick reference, download our battery cable size guide.
Download the Battery Cable Size Guide
Battery Isolation for Motorsport
Most Australian categories require an isolator that kills the engine and cuts battery power, reachable by the driver and from outside the car. The FIA 6 pole kit handles alternator and kill circuits the traditional way, the Cartek isolator does it solid state with no moving parts. Check your category rulebook for the exact requirement, or call us and we will wire it to spec.
Frequently Asked Questions
Where can I buy motorsport power distribution in Australia?
12Volt Motorsports stocks the Haltech PD16 PDM, TE SurLok high current connectors, relay fuse boxes and FIA and Cartek battery isolators in Melbourne, shipped Australia-wide, and wires these systems in house.
What is power distribution in a race car?
The system that safely supplies battery power to every electrical load: ECU, fuel pumps, thermofans, ignition, lights, sensors, dash and accessories, with correct wire sizing, circuit protection and grounding.
What is the difference between a fuse box and a PDM?
A fuse box uses replaceable fuses and relays for protection and switching. A PDM uses electronic outputs with programmable current limits, logic control and diagnostic feedback over CAN.
Should I use a PDM or relays and fuses?
A PDM replaces relays and fuses with programmable, current monitored outputs and diagnostics, the cleanest solution on a new race build. Relays and fuses remain the right call for simple circuits and budget builds. We stock and wire both.
What are SurLok connectors?
TE SurLok Plus is a bolted quick connect system for high current feeds, rated well beyond sealed connector families like DTP. Used on battery feeds, PDM supplies and anywhere serious current crosses a serviceable joint.
What size wire for main power feeds?
12 AWG M22759/32 Tefzel handles feeds to around 27 amps. Beyond that, step up to battery cable sized for the load and terminate through SurLok or the distribution block. Call us with your load list and we will size it.
Do I need a battery isolator for motorsport?
Most Australian categories require an isolator that kills the engine and cuts battery power, reachable by the driver and from outside. The FIA 6 pole kit covers alternator and kill circuits, the Cartek unit does it solid state. Check your category rulebook.
How does the PD16 connect to the rest of the system?
Over CAN to the Haltech ECU, keypads and dash. Outputs are configured in software with current limits and logic per channel, and power arrives through high current feeds we terminate with SurLok.
Do you ship power distribution products Australia-wide?
Yes. We ship to Sydney, Brisbane, Adelaide, Perth, Canberra, Hobart, Darwin and everywhere in between.
Related Products and Services
Need Advice?
Call us on 0458 102 134 or email 12voltmotorsports@gmail.com with your load list and we will design the power distribution for your build.
