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100-Amp MIDI Fuse Kit for Redarc Smart Start Battery Isolator

100-Amp MIDI Fuse Kit for Redarc Smart Start Battery Isolator

Item # 331-FK100
Our Price: $158.00
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Shipping Weight: 0.68 lbs
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100-Amp MIDI Fuse Kit for Redarc Smart Start Battery Isolator Fuse Kit 331-FK100
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Fuse kit contains 2 high-quality, 100-amp MIDI fuses with protective holders. Designed for use with a Redarc 100-amp Smart Start battery isolator. Fuses protect your setup from potentially damaging overcurrent caused by short circuits or overloads. 1-800-940-8924 to order Redarc accessories and parts part number 331-FK100 or order online at Free expert support on all Redarc products. Great prices and Fastest Shipping for 100-Amp MIDI Fuse Kit for Redarc Smart Start Battery Isolator. Accessories and Parts reviews from real customers.
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Redarc Accessories and Parts - 331-FK100

  • Battery Boxes
  • Fuse Kit
  • Redarc

Fuse kit contains 2 high-quality, 100-amp MIDI fuses with protective holders. Designed for use with a Redarc 100-amp Smart Start battery isolator. Fuses protect your setup from potentially damaging overcurrent caused by short circuits or overloads.


  • Fuse kit ensures that your setup is protected from potentially damaging short circuits or overloads
    • Designed for use with Redarc 100-amp Smart Start battery isolators (331-SBI12, 331-SBI12D, 331-SBI12KIT, 331-SBI24, 331-SBI24D)
    • Also great for use with powered winch setups
  • Fuse holders provide maximum contact with fuse to keep dirt and debris out of contact points
  • Kit includes
    • (2) 100-Amp fuses
    • 2 Fuse holders with hardware
    • 4 Cable crimp lugs
  • 2-Year warranty

FK100 100-Amp Fuse Kit for REDARC Smart Start Battery Isolator

Installation Details 331-FK100 Installation instructions

California residents: click here

Video of 100-Amp MIDI Fuse Kit for Redarc Smart Start Battery Isolator

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Redarc 60-Amp MIDI Fuse Kit Review

Today, we're going to be taking a look at Redarc's midi fuse kit. These are available in forty, sixty or one hundred amps. Many of our customers compare these to standard automotive fuses or circuit breakers and the main reason you would want to opt for this fuse over a standard automotive fuse is that the fuse attachment points are screwed down. This ensures that there will be a good connection between our fuse and our circuits for those high amp drawing components.Circuit breakers can typically build heat under long periods of exposure to high amperage draw, which could cause extra resistance and potentially cause that circuit breaker to pop, requiring you to disconnect it to reset it. Whereas these, don't build as much heat and are going to be more suited for those high amp applications these are going to be heavy duty fuses that will give you overload protection for whatever circuits you install them on. What this means, is if you have a short or fault on a circuit on the other side of the fuse, rather than it causing damage to the wiring and circuits on your vehicle, it simply opens the fuse, allows you to make the repairs that you need to fix that wiring and then simply replace it with a new fuse.The kits come with two fuse holders, four fuses and four ring terminals to make connections for your wiring to connect to your fuses on each side.

To mount it, you will need to provide your own screws, they don't come included with the kit. We just use some self tapping screws here, to get this one mounted. Depending on where you mount it, you may want to use a different type of attachment point.Typical applications use this form for high current drawing components, such as numerous lights inside of a camper or RV. We're using ours with our BCDC charging system on our camper here. And, that completes our look at Redarc's midi fuse kit..

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See what our Experts say about this Redarc Accessories and Parts

  • How to Use to Motorhome Alternator to Charge Main Batter and/or Auxiliary Battery
    From the sound of your question, it sounds like you are trying to use your motorhome's alternator to charge your main battery along with an auxiliary battery. It also sounds like you already have a battery isolator, and that is exactly what you need. If you do not have one (or if you discover that yours is defective), a great alternative is the Redarc Smart Start Battery Isolator - 12 Volt - 100 Amp # 331-SBI12 along with the fuse kit # 331-FK100. I went ahead and attached a diagram of...
    view full answer...
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  • Are Fuses Needed When Using Redarc Smart Start Battery Isolator to Charge Secondary Battery
    If you're using the Redarc Smart Start Battery Isolator # 331-SBI12D between the start battery and your auxiliary battery (which is what I recommend for transferring the charge back and forth) then you will want to add a couple 100-amp MIDI fuses in-line before and after the isolator. These fuses can be found in the Redarc Fuse Kit # 331-FK100, which also comes with the fuse holders, hardware, and 4 cable crimp lugs. I have attached an image to assist. The Smart Start Battery Isolator...
    view full answer...
    Image 1 for

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Info for this part was:

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Employee Jacob T
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Employee Dustin K
Video by:
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Employee Brian T
Written by:
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