Rockford Fosgate RFFANL Inline ANL or Maxi Fuse Holder

Inline ANL or Maxi Fuse Holder 1/0 AWG or 4 AWG, Custom Tooled Solid Brass, HPP Platinum Finish.

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Product Overview

The Rockford Fosgate RFFANL is an inline ANL or Maxi fuse holder accepting 1/0 AWG or 4 AWG wire custom-tooled solid brass with HPP (High Performance Plating) platinum finish. Designed for the main power run from the battery to high-power amplifiers or distribution blocks, the RFFANL provides the overcurrent protection required on 1/0 AWG positive cable runs. Accepts both ANL-style and Maxi-style fuses, covering the two common high-current fuse formats used in car audio main power runs.

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Key Specifications

• Part number: RFFANL
• Fuse type: ANL or Maxi (interchangeable) ✓
• Wire gauges accepted: 1/0 AWG or 4 AWG ✓
• Construction: Custom tooled solid brass ✓
• Plating: HPP (High Performance Plating) — platinum finish ✓
• Corrosion resistance: Superior (HPP confirmed) ✓
• Waterproof: Not stated (unlike RFFAGU — confirm from official product page)
• Compatible fuse amperage: Not specified — confirm with Rockford Fosgate
• Fuse included: Not specified — confirm with Rockford Fosgate
• Pack quantity: Not specified — single unit assumed
• Length: Not specified
• Warranty: Not specified — confirm with Rockford Fosgate

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Features & Benefits

• ANL and Maxi Fuse Compatibility — Accepts both ANL (blade-style, high-current) and Maxi fuses — two of the most common high-current fuse formats used on car audio main power runs. This dual compatibility reduces the risk of purchasing the wrong fuse holder format.
• 1/0 AWG or 4 AWG Wire Compatibility — Accepts either 1/0 AWG (main power run gauge) or 4 AWG wire — suitable for protecting both heavy main runs and intermediate-gauge branch cables.
• Custom Tooled Solid Brass — Machined brass for the mechanical strength and conductivity required on high-current main power cable protection.
• HPP Platinum Plating — Corrosion-resistant coating for long-term contact reliability at the fuse terminals.

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Technical Specs

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Compatible With / Goes Well With

Suitable for:

• Main positive 1/0 AWG power run protection (battery to distribution block or amplifier)
• Branch 4 AWG power run protection
• Systems requiring ANL or Maxi fuse format protection

Pairs well with:

• Rockford Fosgate RFW1R-51 (1/0 AWG positive main run)
• Rockford Fosgate RFD1 or RFD4 distribution blocks
• Compatible ANL or Maxi fuses at the appropriate amperage rating

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Frequently Asked Questions

What is the difference between ANL and Maxi fuses?

ANL fuses are large blade-style fuses used in high-current car audio main runs — typically available from 80A to 300A or higher. Maxi fuses are a different blade style covering a similar amperage range. The RFFANL accepts both formats — confirm which format is more readily available for your system's required amperage from your local supplier.

What wire gauge does this fuse holder accept?

1/0 AWG and 4 AWG — confirmed in the product description. For 4 AWG or 8 AWG branch runs, use the RFFAGU (AGU-style) fuse holder instead.

How does the RFFANL differ from the RFFAGU?

The RFFANL accepts 1/0 AWG or 4 AWG wire and uses ANL or Maxi fuses — for main power runs. The RFFAGU accepts 4 AWG or 8 AWG wire and uses AGU fuses — for secondary branch runs. The RFFANL is the larger format holder, appropriate for the higher currents of a main battery-to-amplifier run.

Is this fuse holder waterproof?

"Waterproof" is not stated for the RFFANL — unlike the RFFAGU which is explicitly described as waterproof. Confirm from the official Rockford Fosgate RFFANL product page whether a waterproof rating applies.

Does the RFFANL include a fuse?

Not confirmed in the supplier data. Confirm from the official product page.