Arrives before Christmas 
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Fuse kit contains 4 high-quality, 40-amp MIDI fuses with protective holders. Works with Redarc 25-amp BCDC battery charger (331-BCDC1225D). Fuses protect your setup from potentially damaging overcurrent caused by short circuits or overloads.
Features:
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Speaker 1: Today we'll be having a look at the Redarc 40 amp fuse kit for Redarc in-vehicle DC to DC battery chargers, part number 331-FK40.This fuse kit is a great solution when you need to fuse a power wire, such as this six gauge power wire. You may need to use this if you're using a battery charger on a trailer, which is what we're going to be using for, or if you're using it for a wench or if you're using it for a salt spreader on the back of a plow truck or whatever other application you're using it with.In our particular case we're using six gauge wire going into it. The terminals that come with it will crimp onto six gauge wire very nicely. This kit will come with two fuse holders and four fuses so you have two replacement fuses if you ever we're happen to blow one.We also have four ring terminals so you can actually install both fuse holders appropriately.Now the reason you're going to want this over other fuse options on the market is that this comes with everything you need in order to properly get a fuse setup on a wire, such as this six gauge wire. The reason you want to have fuse installed is because if you we're to have a short circuit, you don't have to worry about an electrical fire happening in your trailer, your vehicle, or damaging your piece of equipment that's being powered by this. The fuse will blow, thus eliminating the risk of an electric fire or causing damage to your expensive devices.Now the fuses that come with this kit are rated up to 40 amps.
So if you we're to have a draw over 40 amps, the fuse will then blow and then will protect the system. If you're running less than 40 amps of current on your device, this will be a perfect solution for you.Inside of our fuse holder, you can find our 40 amp fuse. It's easily replaceable with one of the included replacements if you we're to need to replace it. You don't have to worry about running to an auto parts store in order to get a replacement. You already have it so you're safe for the future.Now that we've gone over some features, we'll show you how to get it installed.As you can see here, we have a power wire in the engine compartment of our vehicle.
In order to hook this up to our battery, we need to make sure that we have a fuse to protect the circuit that this wire's going to power.Now we're going to cut off some insulation from all three ends of our wire. Just using a utility knife to this. If you have wire strippers that are big enough to this, that's good. I don't so I'm just using a utility knife.Now that we have a cut, we'll pull off the end and we'll twist the wire together nice and tight. We'll do the same for the other two ends.Now we'll take one of our ring terminals that comes with our kit, and we'll stick it on the long end of our cable.
We'll stick it down all the way and we'll crimp it into place. We're using a hydraulic crimper for this. These are readily available at most hardware stores.We did the same for one of the other ends of our short cable. Now on the other end of our short cable, since we're using six gauge wire, we're going to attach a six gauge ring terminal with a 3/8 of an inch diameter hole, part number SWC57016 on our website.We'll use our same crimping tool to crimp that into place.Redarc does highly recommend that we solder .. I will go ahead and get some solder inside of there.Okay, now that our connection is soldered, we'll have a great electrical connection that's nice and solid.
We'll take some heat shrink and we'll cover up our solder joint and our cable. We'll use a heat gun to shrink it down.We'll repeat the same process as soldering and heat shrinking all of our connections from this point forward.Now we'll take our fuse holder, remove the nuts. Take our provided 40 amp fuse. Place it over the studs and we'll place our terminals over the studs and reinstall the nuts.Now we use an eight millimeter socket to tighten our nuts. Now we'll take our cover and we'll fold it over our connections and it'll snap closed and lock into place.Now we'll remove this nut on our positive battery post. Place a ring terminal over the stud and we'll reinstall the nut.That completes our look at an installation of the Redarc 40 amp fuse kit for Redarc in-vehicle DC to DC battery chargers, part number 331-FK40.
In my opinion, this is a must use with the Redarc battery charger. The battery charger can and will at times pull a steady 25A current, and that can easily heat things up. Prior to using this, I was using some generic inline audio type fuse holders with 4-gauge wires; the fuse holders all melted at the wire connections! The connections between the wires and the fuse holders have to be very good. With this product, that connection is in fact solid. I have been using this product for about a year now without any issue.
This is a very high-quality fuse kit that I will be using to install a Redarc DC to DC charger in a camping trailer. This kit was recommended by Redarc and etrailer and I am very happy that they worked out the size and type of fuse so I didn't have to muddle through the research. The kit includes all the hardware needed to install it including two spare fuses.
Must have perfect for DCdc charger
Quick shipping, Haven’t hooked it up yet.
What a difference this makes. Installing this means I have a fully charged battery when I get to camp
Easy to install. Instruction were spot on. Not a single problem after a year of use. Definitely recommended. Worth the price.
God little kit, easy to install.
Quality items at a fair price.
gotta use these with the REDARC
Good fuses!
very satified with product and cusomer service.
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Fs
8/30/2024
Update: 20240829. Still working flawlessly! No melting issue.