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Ground Zero GZWR 50-20 Wire Reducer Adapter (0 AWG to 4 AWG)
Ground Zero GZWR 50-20 Wire Reducer Adapter (0 AWG to 4 AWG)
Ground Zero GZWR 50-20 Wire Reducer Adapter (0 AWG to 4 AWG)
Ground Zero GZWR 50-20 Wire Reducer Adapter (0 AWG to 4 AWG)

Vendor:Ground Zero

Ground Zero GZWR 50-20 Wire Reducer Adapter (0 AWG to 4 AWG)

$59.00

Ground Zero GZWR 50-20 Wire Cable Reducer Adapter | 0 AWG / 50mm² to 4 AWG / 20mm²

The Ground Zero GZWR 50-20 is a solid car audio power wire reducer designed to connect a 50mm² / 0 AWG power cable to a smaller 20mm² / 4 AWG connection. Constructed from nickel-plated brass with a secure screw terminal and protective rubber sheathing, it provides a practical solution for connecting larger power cable to amplifiers, fuse holders and distribution blocks with smaller terminals.

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Product details

Key Features
  • Reduces 0 AWG / 50mm² power cable to a 4 AWG / 20mm² connection
  • Solid nickel-plated brass construction provides a robust high-current connection
  • Screw-terminal design securely clamps the incoming power cable
  • Rubber sheathing provides insulation and easier handling during installation
  • Supplied as a red and black pair for positive and negative power connections
Best Suited For
  • Connecting oversized power cable to amplifiers with smaller power terminals
  • Adapting 0 AWG wiring to 4 AWG fuse holder or distribution block connections
  • High-current car audio power installations
  • Installers wanting a solid adapter instead of reducing cable size through improvised wiring
  • Battery, amplifier and distribution wiring where 50mm² cable needs to terminate at a 20mm² connection
Why OSCA Backs This Product

The useful part is how cleanly it solves a common installation problem: you can run larger 0 AWG power cable through the vehicle and reduce it directly at equipment that only accepts 4 AWG, without creating an awkward cable transition.

12-MONTH LIMITED WARRANTY APPLIED

Free Shipping on All Orders Within Australia Over $1000

12-MONTH LIMITED WARRANTY APPLIED

Free Shipping on All Orders Within Australia Over $1000

About Ground Zero 🚀

Ground Zero, established in 1995, is a German-engineered car audio brand with strong American performance roots, known for delivering high-output, competition-proven equipment built on real engineering, not hype. With distribution in over 80 countries and a full range of system components developed in Germany, the brand has earned global respect through consistent results in independent testing and demanding installs. From its origins in high-excursion subwoofer design to its evolution into a complete system solution, Ground Zero remains a go-to for enthusiasts and installers who value output, reliability, and proven performance.

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