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Epicord Battery Disconnect Switch with Key - 50 Amp

Epicord Battery Disconnect Switch with Key - 50 Amp

Item # 277-000096
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277-000096 - Switches and Solenoids Epicord Accessories and Parts
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  • Reviews (68)
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Epicord Accessories and Parts - 277-000096

  • Battery Boxes
  • Switches and Solenoids
  • Epicord

  • Epicord battery disconnect switch
  • Ideal for use in vehicles, RVs, marine applications, and agricultural equipment
  • Isolates battery to prevent theft or power drain
  • Bolt on terminals for added security
  • Includes 1 red removable key
  • Amperage: 50
  • 12V DC
  • 1-Year limited warranty

96093 Epicord Battery Disconnect Switch with Key - 50 Amp


Replaces 871

Video of Epicord Battery Disconnect Switch with Key - 50 Amp

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

Video Transcript for Epicord Battery Disconnect Switch with Key Review and Installation

Ryan: Hey everybody. Ryan here at Today on our travel trailer, we're going to be taking a look at and showing you how to install the epicord battery disconnect switch with key. This battery disconnect switch is going to be a very quick and easy way to disconnect the battery power from your travel trailer, which in turn is going to help prevent your battery from going dead as well as prolong the life of it. This could be very easy to operate. Just simply pull back your protective dust cover and put in your tethered key, and you can rotate it to turn it on and off.

Now once it is in the on position, you'll know it's on because the key cannot be removed. However, whenever you turn it off, the key comes right out and you can put that cover back on. And I'll give you a quick example of how it's going to work. As you can see now, the key is not in it, that means it's in the off position. And with our electric jack up front, we hit our switch, it's not going to operate at all.

Now I'll go ahead and put our switch in the on position.With the switch on, we now have power to our travel trailer. This also makes it very convenient if you have to make any electrical repairs or even updates. When doing that job simply just turn your power off, get the job done, and turn it right back on. And when taking your trailer out of storage, you're not going to have to worry about bringing a jump box with you or bothering someone to help you out with some jumper cables. Now one of our customers did write in and say he actually had the key brake.

Now the key is made out of a pretty thick plastic and it doesn't take a whole lot of effort to actually turn the switch, so just be conscious of that, especially in that cold and brutal weather.Now the switch is rated for up to 50 amps, so anything at that or below is going to work good for you. Now one of my favorite things about this switch is that it can be mounted flush and give you that nice clean look. Now, although this can work with two batteries, keep in mind that either they're both going to be on or both going to be off. If you're looking to control your batteries individually, I'd recommend a dual battery isolator switch, that way you can either disconnect both, connect both of them, or like I said, turn one on and one off. On the back of our switch, our posts are going to have a diameter of three eighths of an inch, and it's also going to come with the necessary hardware you're going to need to secure your cables to those posts.To begin our installation, we're going to locate our battery and disconnect all of our power cables.

With everything disconnected, now we need to locate a spot to mount our switch. Now you don't have to do it this exact way, but this is the way that I'm going to do it today. I'm going to mount this right here on our header and I'm going to drill a hole and mount it right here. And I like to do this first that way we know where to run our wiring. If you do drill into anything, just make sure that there's nothing of importance behind it that way we don't damage anything. I'm gonna use the hole saw to make that hole.Now to help prevent any rust or corrosion on this bare metal, I'm just going to shoot a layer of spray paint over it. Then what I'm going to do is take our positive cables that went to the positive terminal on our battery and feed them back up through here and get them to come out of the hole that we drilled. Now we can hook our cables up to our switch, but before we do that we want to ensure that the switch is in the off position. So to make sure it is, as long as you can pull the key out we know it is in that off position. So I went ahead and removed the hardware on our post, and we're gonna put these cables on our top post. Put on our split lock washer and our nut. Now we're just going to run these down hand tight for now and we'll tighten them here in a moment.Now we can connect our other cord to the back of our switch here at the bottom and run it over to the positive post on our battery. Now I do want to point out that this switch does not come with this extra cable, but if you need one you can find it here at What we'll do is take off our hardware, run the end of our cable through our hole. And once again, we're just going to loosely install it for now. So now we can kind of position our cables in a way that makes sense to ensure that they're not gonna come close to each other. So I'm going to use this setup right here. And once we verified that we can then snug down our two nuts. And since our new battery cable had quite a bit of exposed metal, I went ahead and just wrapped it up in some electrical tape just to help keep it protected.Then what I did, I pushed everything through and held this in place where I want to mount it, and I made a few marks. What I'm gonna do is pre drill small pilot holes in here that way it'll be easier to run my self tapping tech screws through here to secure our switch to the trailer. If you need some of these tech screws you can pick some up here at And finally we can take our new battery cable that's running out of the back of the switch and connect it to that positive terminal here on our battery. Now we can test it to make sure everything's working properly. So as you can see now, with the key out and in this position, our battery disconnect is in the off position. And just for a quick reference, we're going to test our jack to see if it is working with our switch.Now this is hooked up to all the same things that are inside of our camper. So if this doesn't work, nothing else will work inside. So we can try and go up and down and nothing is happening. Now let's go ahead and turn our switch on. Make sure we get power. Now we'll see if we have power. So it looks like everything is working properly. And that'll do it for our look at and our installation of the epicord battery disconnect switch on our travel trailer.

Customer Satisfaction Score:

Customer Reviews

Epicord Battery Disconnect Switch with Key - 50 Amp - 277-000096

Average Customer Rating:  4.8 out of 5 stars   (68 Customer Reviews)


I just installed this as a replacement for an identical switch on my 2018 2109S Rockwood camper. The original switch failed. This one seems to be high quality so hopefully it will last. Because it was an identical switch, I was able to take the switch out of the backer plate and install it on the backer plate for the old switch. This was easier than taking the mounting screws out of the camper frame and worked perfectly. etrailer was the only place I could find an identical replacement. As always, etrailer shipped quickly and I am pleased with their service.

Ive had this for a year now, and it is still working great. I wish it were designed so the holder for the socket cover did not slip off so easily, but that is a very minor annoyance.
Bruce - 11/08/2022


The 50 amp Epicord Battery Disconnect Switch with Key that I purchased from etrailer arrived in a timely manner and was a very good quality. It worked perfect for my application. I highly recommend this switch and etrailer.


Ordered the part and received it a day earlier than expected.
The part is better than the original because it comes with the protective cap that can be used when the T handle key is not in place.
Ordering from etrailer is the best, better than the big e-commerce place, because they follow the product all the way to your door and even ask if it worked for you.
Very pleased!


Perfect replacement, fast delivery, and at a fair price. Thanks, eTrailer!


Well pleased with product , installed on our travel trailer to disconnect while not in use.

No problems with this disconnect helps maintain battery charge while camper not in use also good safety feature for killing 12 volt power to camper.
Paul G - 07/24/2021


Great replacement for the broken one.


I've purchased two of these switches now over the last 2 years because they fail after 1 season. Definitely need a better solution for a disconnect

I will have our Customer Service team reach out to you. The switch does have a one year warranty.
-- Etrailer Expert Jenny N - 04/12/2022


This was the perfect replacement for our switch.


Excellent quality. Versatile mounting options for a travel trailer. I mounted kind directly to the battery box. No issues.


Good quality and a good price. Purchased these for my travel trailers. A must have to extend the life of the battery. Posted pictures of how I installed it to the battery box.


Purchased to install a battery isolation switch in our travel trailer. Installed it into a square junction box to seal off and weatherproof the wiring connections Works like a champ.

Works great. Completely shuts off power to the fifth wheel and helps keep the battery from suffering from vampire drain.
Mike L - 07/18/2021


Great product…direct fit for my camper.


Very sturdy, well made product. I have this switch on my Rockwood and purchased this for my sister's trailer.


We received the item in a very timely manner. It is the part we needed. We received it today and it is already installed.

by: 07/26/2021

Easy installation


This worked great. You had to be a tad creative and know your electrical supplies to buy the right plastic box and fittings to install it. And don’t forget to maintain proper polarity when you hook things back up. I have no idea why I would say that.


Part shipped to me as soon as it came back in stock. Very helpful video on installation.


Well built. useful removeable key. Minus one star for quality control. This one replaced exact same one not working - could not get power to connect. Took it apart and found a piece of plastic blocking the contact plate.


Needed a battery disconnect for an inverter feed. Product fit and finish looks professional and clean. Solid feel.


Very simple to wire. To avoid unnecessary drilling into the trailer, I simply went to Walmart and purchased an oversized battery box. It easily fit in the same location on the tongue. I cut a hole in the end of the box and mounted it there. No exposed wires or connectors.


Purchased this switch to be the master battery shutoff for my camper. It is mounted outside and to the frame of the camper. After one year of use it is still working well. It was easy to mount and connect the battery cables. Appears to be a sturdy, well built part and I would recommend this product to others.


Hey quick shipping, Exact replacement. Connected easily and works great. Thanks

I have bought other things with the same success and quality.


I ordered this to replace an existing defective disconnect switch on our travel trailer. I am by no means mechanically inclined, but after watching the video, the install was straight forward & easy. The most difficult part was removing the rusted screws from our original one. This switch fit right in where the old one was mounted on the frame and has a sturdier key than the one we have had. It's mentioned in the video, but note that the mounting screws are not provided in the disconnect kit. You must supply your own.


This battery disconnect is perfect of isolating my RV batteries. I mounted it on a plastic 4x4 junction box and then onto one of the battery boxes then wired it up. Works great!.
Easy to install and easy to use. Saves unwanted battery drain when the RV is not in use.


The switch failed after a couple days. It caused major difficulties for my camper and camping experience - a long story. It's a switch! What can go wrong? The company sent a replacement fairly promptly, but the damage had already been done. I hope the replacement works.

Show More Reviews

See what our Experts say about this Epicord Accessories and Parts

  • What Size Hole Saw to Install Epicord Batt Disconnect #277-000096
    To easily fit the center portion of the Epicord Battery Disconnect Switch # 277-000096 through your wall you'd want to drill a 2-3/4 inch hole so that would be the size hole saw to use.
    view full answer...
  • Recommended Battery Disconnect Switch for Deep Cell Battery on Horse Trailer for Accessories
    Yes, the Epicord Battery Disconnect # 277-000096 would be a great switch choice for you to install on the horse trailer to ensure that all the power is on and off to your accessories with one switch to the deep cell battery. I have linked it to this page for your viewing and purchasing convenience.
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  • Depth of the Epicord Battery Disconnect Switch with Key # 277-000096 From the Plate to the Key
    I went out to the warehouse and found that from the white plate to the furthest point on the key measures 2-5/8" for the Epicord Battery Disconnect Switch with Key # 277-000096. I have attached a picture for a visual.
    view full answer...
    Image 1 for
  • Recommended Battery Cutoff Switch for Two 12 Volt Batteries
    I cannot be for sure but it sounds as if you are referring to a battery cutoff switch. If this is the case then I recommend using the Epicord Battery Disconnect Switch with Key part # 277-000096. This switch has easy to use bolt-on terminals, comes with a removable key, and has a 1-year warranty. You will need one switch for each battery. In order to install the switch, I recommend making a circular hole for the terminals to slide into and then attaching it to the outside of your plastic...
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  • Solution for Shutting Off Winch on Jeep Wrangler to Prevent Unauthorized Use
    In order shut off the winch on your Jeep Wrangler to prevent unauthorized use, I recommend taking a look at the Epicord Battery Disconnect Switch # 277-000096. You can install this inline between the winch and battery to prevent it from being used when the switch is off. It includes a red removable key as well. I have attached a short video demonstration on this product that you can also check out.
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  • When Can Key of Epicord Battery Disconnect Switch with Key # 277-000096 be Removed
    The only time the key of the Epicord Battery Disconnect Switch with Key # 277-000096 can be removed is when the key is in the off position. The key has to be installed for it to be in "ON". And by "ON" that refers to the battery being ON.
    view full answer...
  • Can Key of Epicord Battery Disconnect Switch with Key # 277-000096 be Removed when On
    The only time the key of the Epicord Battery Disconnect Switch with Key # 277-000096 can be removed is when the key is in the off position. The key has to be installed for it to be in "ON". It can withstand some weather pretty easily like most wiring that you might find under the hood of an engine, but you wouldn't want to submerge it by any means.
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  • Installation of Epicord Battery Disconnect Switch
    A battery disconnect switch such as the Epicord Battery Disconnect Switch with Key # 277-000096 will simply install inline from the 12V terminal on your 7-way to your pair of 12V batteries; because of this you are going to need one switch per battery. I have added a link to a video review of this switch for you to check out as well.
    view full answer...
  • Does Epicord Battery Disconnect Switch with Key # 277-000096 Need Wiring Diagram
    The poles of the Epicord Battery Disconnect Switch with Key # 277-000096 that you referenced are not polarity sensitive so you can run either pole for either wire. Basically this just acts as a way to either open or close a circuit so as long as you attach both wires to it the polarity would not matter.
    view full answer...
  • Battery Disconnect Switch for a Trailer Wired for 30 Amps
    Epicord Battery Disconnect Switch with Key - 50 Amp Item # 277-000096 is rated up to 50 amps but will work with a 30 amp system. All it is doing is not allowing power to flow when turned to the OFF position.
    view full answer...
  • Installation of 277-000096 Battery Disconnect Switch
    You'd want to install the disconnect on the positive leg, if you grounded the negative leg and the circuit was accidentally grounded, damage could occur. Interrupting the positive leg would prevent this from happening. We recommend installing the switch as shown in the video I've linked for you.
    view full answer...
  • Battery Disconnect Recommendation for 5th Wheel Trailer
    The Epicord Battery Disconnect Switch # 277-000096 is my recommendation. This switch helps to ensure you preserve batteries while in storage or if just need to quickly shut off power any reason while in use. Included are both a review and installation video to provide a good overview.
    view full answer...
  • Is the Epicord Battery Disconnect Switch Compatible with 2 6 Volt Batteries
    Yes the Epicord Battery Disconnect Switch with Key part # 277-000096 is rated for up to 12 volts. It does not matter if that is two 6 volts in series or a single 12 volt. It is rated for up to 50 Amps as well and you will be well below that. I have linked a video on it for you to check out that my buddy Ryan did.
    view full answer...
  • Could Epicord Battery Disconnect Switch Be Used on Trailer with Dual Batteries
    Yes you could use the Epicord Battery Disconnect Switch # 277-000096 on a travel trailer that has a dual battery setup. Your batteries are most likely wired in parallel and use one of the terminals of each battery as a power and ground for the rest of the trailer's wiring. You'd just need to install this on one of those wires and you'd be set. I attached an install video for this for you to check out as well.
    view full answer...
  • How Can I Stop The Battery Drain On My Trailer
    We do have some items that would help stop your battery drain. For example, the Epicord Battery Disconnect Switch with Key - 50 Amp, part # 277-000096, will disconnect your battery to prevent power drain. I have included a product description link, a video review link, and a weblink for our battery disconnect switches below.
    view full answer...
  • Can the Go Power 200 Watt Solar Flex Charging System Charge Lithium-Ion and Gel Batteries Together
    The Go Power Solar Flex Charging System part # 34272628 can charge two different battery banks separately. Therefore, you can charge both the lithium-ion and gel battery banks at different rates. There would be one profile for the lithium-ion battery/bank and another profile for the gel battery/bank which would charge them at different rates so it is adjustable in that sense. In regards to killing power to either bank, the device will do this for you once the battery/bank is fully charged...
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  • Preventing Battery Drain In Storage On A 2018 Momentum RV
    If your trailer is off or in storage and the battery is draining then you should install a battery disconnect switch like the Epicord Battery Disconnect Switch with Key - 50 Amp # 277-000096 to cut all power consumption from your batteries. As for charging the batteries the Go Power Eco Solar Charging System with Digital Solar Controller - 80 Watt Solar Panel # 34272627 will charge approximately 27.42ah a day in peak conditions so if you're having a larger pull than that in a day you'll...
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  • Battery Disconnect Switch for Use on Travel Trailer
    You can use the Marine Battery Switch # 277-000403 for your application but since this item is not rated for outdoor use I recommend using a junction box like # 3375601100 to provide a degree of protection from moisture. The switch housing (not including the knob) is about 1-1/4-inches deep so you'd want to use hardware that is about 2-inches long. If space is available in your battery box you might be able to mount the switch there. In this case a better choice might be the Epicord Battery...
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  • Hardware Needed To Install 277-000096 50 Amp Battery Disconnect Switch
    The 50 amp battery disconnect switch would install inline on the positive battery cable. If there's enough slack in the positive cable to reach the area where you want to mount the switch, you'd simply cut disconnect the positive battery cable and cut it at the point where it reaches the terminals on the back of the switch. You'd need to install a ring terminal on the wire, but the size terminal you need will depend on the gauge of the wire used for the cable (the wire gauge should be printed...
    view full answer...
  • Switch to Control 12V Power Circuit in Tow Vehicle 7-Way Trailer Connector
    It is possible to install a power switch in your truck 7-way's 12V auxiliary power circuit. This will allow you to manually control the power feed to the 7-way. Epicord offers Battery Disconnect Switch # 277-000096 that can be installed in the truck on the trailer power circuit between the 7-way and the circuit breaker. This lockable item has input/output terminals on the back and mounts to a flat surface using the 4-hole mounting plate. Hardware is not included.
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  • Can the Epicord Battery Disconnect Switch # 277-000096 be Installed on Negative Battery Terminal
    Since the Epicord Battery Disconnect Switch with Key # 277-000096 basically just disrupts the connection it can be used for either the positive or the negative side of the battery. Really the only time that it matters is when you install a battery disconnect like the Roadmaster # RM-766 which is designed to charge the battery while it is disconnected.
    view full answer...
  • Recommended Switch and Isolation of Two 12V Batteries
    We don't have anything to be a power selector quite like what you are describing. We have the isolation solenoid # TR118665 that will only allow power to flow in one direction so the second battery cannot drain the first which a simple switch can be added to. The other option is to have two batteries run completely separate and use the Epicord Battery Disconnect Switch with Key - 50 Amp # 277-000096 on each one. This will isolate the on/off power of each battery, but what is connected...
    view full answer...
    Image 1 for
  • Should Trailer Mounted Batteries Be Grounded to Trailer Frame
    The batteries should indeed be grounded to the trailer frame. A battery disconnect switch like # 277-000096 would install inline on the positive circuit of the battery as shown in the video I've linked for you.
    view full answer...
  • How to Turn Off Refrigerator in Trailer
    There should be a breaker dedicated solely for the refrigerator like part # 324-000119 that you can simply flip to the "off" position for when you don't want the refrigerator to draw power. If for some reason you don't have one you can install a disconnect like the Epicord # 277-000096 on the power wire to easily disconnect the power when needed.
    view full answer...

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Employee Joshua S
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