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Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly

Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly

Item # HM55115
Our Price: $23.40
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12V Power Accessories
Shipping Weight: 0.68 lbs
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Hopkins Power Socket - HM55115
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You've got the power, it's just that you were unaware of it. Simply install the 12-volt socket anywhere you need a power source, and enjoy the possibilities. 17' wire and fuse included for installation. 1-800-940-8924 to order Hopkins 12v power accessories part number HM55115 or order online at Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly. 12V Power Accessories reviews from real customers.
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  • Reviews (22)
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  • Videos (3)
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Hopkins 12V Power Accessories - HM55115

  • Power Socket
  • 1 DC Outlet
  • Hopkins

You've got the power, it's just that you were unaware of it. Simply install the 12-volt socket anywhere you need a power source, and enjoy the possibilities. 17' wire and fuse included for installation.


  • Convenient - mounts anywhere 12-volt power is needed
  • Surface-mount design
  • Weather resistant dust cover built-in
  • Includes wiring harness


  • 17' Long power wire and fuse assembly included

55115 Hopkins Flush Mount 12-Volt Power Socket Including Power Wire and Fuse Assembly
Replaces HM55110

Installation Details HM55115 Installation instructions

California residents: click here

Video of Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly

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

Video Transcript for Hopkins 12-Volt Power Socket Installation - 2012 Honda CR-V

Hey everybody, Ryan here at etrailer. Today on our 2012 Honda CR-V, we're gonna be taking a look at, and showing you how to install the Hopkins 12 volt power outlet kit. So right away, here's what the 12 volt power outlet is going to look like. You know, pretty standard. Kind of just has your standard, you know, cigarette type port there, that you can plug different accessories into. Now, let's kind of talk about why you need this.

Generally speaking, you're going to use these if you're using a portable type braking system for flat towing. So for example, our customer here today is using the Ox Patriot 3, and those need a power supply. Well, a lot of times, you know, the CRVs, for example, whenever you put it in tow mode, you don't have power to your factory 12 volt socket, and so you need a dedicated one. And honestly, too, even if your vehicle factory one did have power, I think I would rather have a dedicated one anyway, just so I know that's the only thing it's getting power from, and it's protected and everything else. So this is going to provide us with a spot, that way we can plug our braking system into it, and have it function properly, whenever we're flat towing.

But, you know, with that said, I mean, you can put these things anywhere, really. And if you say, maybe wanted another one for some type of charger that you like to use, or whatever type of accessory, that can plug into there, this is going to power up. So, they can pretty much put these anywhere, and use them for just about anything, But, like I said, one of the most popular reasons is for the braking system. What's kind of nice about this one, it does have some sticky tape on the back there, and you can use screws to secure it, so you know it's not going to go anywhere. There's a cap that actually covers the port there, and that's good, especially if you mod it down somewhere, you don't want change falling in there, or other type of stuff in there that can cause a short or something for the next time you got to use it.

So, pretty well thought out, you know, there's a nice plastic housing around it to keep everything protected. So, it should do a pretty good job. Just kind of a demonstration on how this works here. We'll go ahead, put our braking system in place, and when we need the power, just plug it in. You can see the light illuminated there.

Then we're able to set up our braking system. We'll power that up, set it up. And it's going to provide us with all the power that we need for this to function properly. So at the end of the day, if you plan on using a portable type braking system with your CR-V, this component is definitely a must have. Now as far as the installation goes, pretty easy, believe it or not, there's really just two wires. You know, you've got a ground and a power wire, which you will run straight to the battery, and then just mount up the socket itself. So, really shouldn't give you a whole lot of issues or take up a whole lot of your time. So, no problem getting it done at home in the garage, or maybe even in the driveway. Speaking of which, let's go ahead and put that all together now. And to begin our installation, we're going to be underneath the driver's side dashboard, and we need to mount up our outlet. So what I've done, is simply just mounted it to the kick panel here on the side, towards the back, that way it doesn't interfere with our e-brake or anything like that. And there's actually some two-sided sticky tape on the back of it, and that's how I just secured it to the kick panel, and it's actually in place really well. There is slots right here that allow you to use a self tapping screw if you want to, but I figured it's in there really nice. There's a lot of wires and stuff behind this panel. So why even kind of risk it, drilling into it But with that said, there is going to be two wires that come off of our outlet, a red one, which will go to battery power, and a white one, which will need to get grounded. So the white one, I simply just routed over to here. Alright, And there's a factory bracket there with a nut on it. I pulled that nut off using a 12 mm socket and that white wire already has a ring terminal attached to it. So you simply just slide the ring terminal over the stud, and tighten it up back down, and that'll provide us with that ground that we need. As far as the red wire goes, that's going to come off of our outlet, and then we're gonna have to get this into the engine compartment. So I simply just routed it. Kind of, just along this edge here of our dash. And then I ran it, straight against the firewall. There's a factory grommet there, and I poked a hole in the grommet, push that wire out into the engine compartment. Now on the engine compartment, here's where the wire comes through the grommet, and I just routed it along through here, and this is gonna get hooked up to the fuse holder which will go onto the positive battery terminal. So, fuse holder already has these buck connectors pre-attached to it, so you're simply just gotta strip this wire back, put it down and crimp it down. The other one, you're gonna remove this nut using a 10 millimeter socket. Slide that ring terminal over it, and tie it back down. Now, before you do that, before you put this on, make sure the fuse is not hooked up. I want to get this all tight and connected before we put the fuse in. So once you have it set up, like so, we'll take the prepped fuse and put that into the holder. So now, just to do a quick test, just to make sure we have power, I just grabbed a USB type charger, and when we plugged this in, we should see the blue light on my charger here, light up. And if it does, that indicates us that we have power. And plugged in, you can see that blue light come on, and you know, we have power up here. So, whenever we're ready to hook up our braking system, or, you know, whatever else you're trying to do, more likely the braking system, we know that we're going to have power and it will operate. And now we'll finish up our look at and, and our installation of the Hopkins 12 volt power outlet kit on our 2012 Honda CR-V..

Customer Satisfaction Score:

Customer Reviews

Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly - HM55115

Average Customer Rating:  4.2 out of 5 stars   (22 Customer Reviews)

You've got the power, it's just that you were unaware of it. Simply install the 12-volt socket anywhere you need a power source, and enjoy the possibilities. 17' wire and fuse included for installation.


This outlet is working great. I installed it on the outside of trailer by the rear bumper to power a 12 volt macerator pump. This enables me to empty black and gray water tanks into sink drain at home. Puts 12 volt power outlet where it is needed, with quick safe weather tight connect/disconnect.


Got it in the mail this afternoon. I will get to installing later. The foam on the bottom had to be cut so the wires would fit flat and allow the unit to mount to the truck bed. Will start installation when it quits raining.
For a more speedy review the request could have been made the day before it was delivered!!


easy to install with included wire in k it.


Works great


Used this to add a 12 volt power outlet for my RVi Tow Brake System in the overhead console of my Winnebago View for the remote monitor. I have a 2016 Winnebago View and there was no good place to put the RVi plug in monitor on the dash console. This worked great!


Just what I needed, it is well made and will work great with my supplement braking system I use when pulling my jeep with the RV. As always E trailer sent it quick, and knew what I needed.

Mike S.


Still working great and looks like it just came out of the box.


Put this on dash panel of our Sprinter 3500 frame class A RV for a plug-in on our new wireless towing device sync box to vehicle brake box. Easy to install on dash could set power socket were I could see information on wireless box and plenty of wire and fuse link to be able to hook up direct to RV batteries not the main vehicle battery.


Good as advertised


The power socket arrived quickly and came packaged as advertised, installed easily in our camper. A simple product that will add much convenience to our camping. Just installed so we don't know the long term reliability of this product yet.


the main product was excellent...extra wire was too small a gauge for a 12 volt socket but was solved by Mark at etrailer....thanks..Mark


Have not installed this as it is larger than I thought.
Looks to be good quality!



Decided to use a different connector as this was too big for my intentions.


Great value for price.

Easy installation
and works great.


Fit my needs perfectly. Very satisfied with product and E-trailer.


I’m giving it 5 stars but truthfully I didn’t need it and returned it for refund so your on your own with it ..



Defective and had to be returned.


Works great, looks awesome, and its easy to install.


Just what I needed in my rv






See what our Experts say about this Hopkins 12V Power Accessories

  • Adding 12V Power Socket to Travel Trailer to Power DVD or Inverter for Phone Charging
    The Hopkins 12-Volt Power Socket # HM55115 that you referenced is a perfect solution for what you are wanting to do. This will mount anywhere you want it to in your trailer and it includes a 17 foot long power wire and fuse assembly that you can run to the battery. This is indeed the easiest and most economical way to add a permanent DC port to your trailer and it will work great to provide power to the accessories you mentioned. There is not an issue connecting this to your battery that...
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  • Wire Size and Amperage Rating of the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly
    The wire size of the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly # HM55115 is 14 gauge and the amperage rating of the fuse is 20 amps. So as long as you stay under 20 amps this product should work well for you.
    view full answer...
  • Where to Attach Ground Wire on RV to Install Hopkins 12-Volt Power Socket # HM55115
    The Hopkins 12-Volt Power Socket # HM55115 can be installed with the white ground wire attached either to a clean bare metal surface on the RV frame or directly to the negative terminal on the battery, as you suggested, since the battery negative terminal grounds to the RV frame anyway. The battery terminal ground is the best option since the socket must be securely grounded to operate properly. The kit includes 17-feet of 14-gauge primary wire for the positive terminal connection to...
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  • Troubleshooting Hopkins 12-Volt Power Socket # HM55115 Only Supplying 8V of Power
    I would start off by making sure that the ground of the Hopkins 12-Volt Power Socket # HM55115 is secure and connected to a clean, bare-metal surface. Even some paint could potentially cause issues. Aside from that I would just make sure that none of your wiring is damaged. Let me know if neither of those solutions work and I can help you troubleshoot further.
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  • How To Install 12 Volt Power Outlet In Truck Bed
    The best option I have to install a 12 volt power outlet in a truck bed would be to use the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly part # HM55115 and wire this directly to the battery. This would need to be wired directly to the battery as it will provide the outlet with constant power. I am not aware of any adapter that would pull power for the other circuits which likely aren't rated high enough for what you need anyway.
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  • Dimensions of Hopkins 12-Volt Power Socket # HM55115 and # HM55125
    Hopkins 12-Volt Power Socket # HM55115 and # HM55125 have the same dimensions. The base has a diameter of 2-3/4 inches. The overall height is 2-1/2 inches. On both the wires exit at the bottom (or the side with the light if using that model). So if the wording on the cap was facing right side up, the wired would exit from the base at the bottom.
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  • Comparing Hopkins 12V Socket With Hopkins 12V Socket With Utility Light
    Both of the 12V power sockets From Hopkins Manufacturing are great. They both come with 17 feet of wire and fuse included for installation. The only real difference between the Hopkins 12-Volt Socket with Utility Light with Power Wire and Fuse Assembly # HM55125 and the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly # HM55115 is the utility light with on off switch. This is a really nice feature allowing you to see better utilizing the power that is already run to the...
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  • Troubleshooting A 12v Outlet That's Melting When Charging An Igloo Iceless Cooler
    Resistance causes heat build up so it's within reason that the while the body of male plug is super tight in the outlet the contact on it isn't making a good connection with the contact in the female socket, causing the burn out. Have you tried using anything else with a similar connector to see if it's just the cooler or if it's the outlet itself having the issue? It also wouldn't hurt to use a clamp meter and check the actually amp draw. The manufacturer lists it at 4.65 amps too but...
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  • Availability of 12V Power Outlet with Mounting Options
    We do not offer a mounting bracket for the Roadmaster 12 Volt Outlet Kit # RM-9332 and none is included but we do have a similar hardwired 12V outlet product that does allow for surface mounting in the location of your choosing, part # HM55115. Please refer to the linked video for more on this item.
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  • Needing a Heavy Duty 12v Power Outlet
    The best option would be to use the Roadmaster 12-volt Outlet Kit, # RM-9332. This kit is was designed to be used as a way to connect the 12-volt connection on supplemental braking systems used when flat towing a vehicle behind a motor coach. What I like about this kit is it has a 20 amp fuse wire inline of the outlet. The outlet has a two wire application, one to ground and the other, with the inline fuse, to 12-volt power. Power supply to the trailer can be run through the 12-volt...
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  • Adding A 12V Outlet For A Rockwood A-Frame Trailer Charging A Suaoki Portable Solar Generator
    I think the best solution for you is the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly, # HM55115. It comes with an extra 17 feet of wire to connect to a battery and includes an in line fuse. Included are helpful review and installation video resources for it.
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  • Can This Unit Be Installed With An Auxiliary Switch To Function When Truck Is Off?
    The Performance Tool 12-Volt Heater and Defroster can be left on between power cycles with an auxiliary switch if you desire. It will draw about 13 amps at 12 volts which equals out to about 156 watts, so you will want to take that into consideration for your application. I don't recommend leaving it on for long periods of time as it will eventually drain your vehicle battery and the manufacturer states that the heater shouldn't be ran for more than 20 minutes at a time with 5 minutes...
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  • Adding 12 Volt Power Outlet in a Camper for an Electric Blanket that Plugs Into a Cigarette Lighter
    A very simple solution would be the Battery Adapter - 12-Volt DC Cord to Battery, # RM-9332. Connect the battery terminal ends to the battery and plug in your electric blanket in the 12 volt end. Depending on where you will have a battery, the 3 foot cord may or may not be long enough. For a more permanent solution you can mount the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly, # HM55115. It comes with an extra 17 feet of wire to connect to a battery and includes an in...
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  • Recommended Camera to Use for Inside of Motorcycle Trailer
    The Rampage Wireless Backup Camera # RA7710 that you referenced is a great option for a wireless camera, since it has the magnetic base it can be mounted in a variety of places around your vehicle or trailer. My contact at Rampage said that you can use the camera while it is plugged up to power, but since it is compact you will get feedback through the microphone. The video will work fine, but you will need to turn the volume down because of the feedback. The best way to use this camera...
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  • Recommended 12 Volt Accessory Socket Rated For 30 Amps or More
    For a 12V socket with fuse, I recommend the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly, # HM55115. This socket will allow for a larger fuse if you upgrade the 14 gauge wire to 10 gauge like # 10-1-1. This will take some customizing as these 12V systems are typically made for 20 amp capacity. You will add the red wire to the battery and use the inline fuse assembly and then attach the white wire to ground. I've attached a review video as well as an installation video...
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    Image 1 for
  • Camera for Use Inside Enclosed Trailer
    Since you do not want to run wiring the best thing you can do is install a 12 volt battery in your trailer like you mentioned, and you can connect the Rampage Wireless Backup Camera # RA7710. This would be the easiest method and what you will do is use 10 gauge wire # 10-2-1 to connect to battery power and ground to the Hopkins 12-Volt Power Socket # HM55115, which will connect to the Rampage camera. This camera does have a light, making this the best option for you. I have added links...
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  • Can MaxxFan Deluxe Roof Vent # MA00-07500K be Wired Directly to Battery
    There is no reason why you cannot power your MaxxFan Deluxe Roof Vent # MA00-07500K from your battery using a 12-Volt DC Outlet # HM55115. You will then just need a plug for the socket, rated properly for your power application. You may want to install a 10 amp fuse with a Fuse Holder # SWC9538 as well to help protect the circuit.
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  • Installation of12 VDC Power Socket for Security Camera
    No worries, to power the Furrion Vision S Wireless RV Backup Camera System, # FOS43TASF you can install a 12 VDC socket. There are options, I like the Charging Station for RVs with 2 USB Ports and a 12V Socket, # DG61023VP or Multi Device RV Charging Station, # 37215095. There is the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly, # HM55115 or the Hopkins 12-Volt Socket with Utility Light with Power Wire and Fuse Assembly, # HM55125. Run a wire from the battery or from...
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  • Recommendation to Add 12V Power Socket on 2018 Honda CR-V
    To add a 12V power socket for you to draw 1-2 amps you will need to add a separate wire because you can't tap into your trailer connector # 118741. You can use the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly # HM55115 or Roadmaster # RM-9332. Your other option since you will need to run wire anyway is to use an adapter like # ETBC7L which will give you a 7-way connection but only the 4-way and 12V power functions you can tap into. It will come with wiring and circuit...
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  • How to Add 12V Socket Wells Cargo Enclosed Trailer
    It's extremely likely that the taillight circuits on the trailer won't have enough power to run your ice chest and the taillights simultaneously, so you wouldn't want to power the cooler from your taillight circuits. However, if your enclosed cargo trailer uses a 7-way trailer connector, there should be an active 12-v feed directly from the tow vehicle battery that could be used for this purpose. I'd recommend using the Hopkins # HM55115. The red wire from the outlet would connect to...
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  • Current Capacity of Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly HM55115
    The Hopkins 12-Volt Power Socket # HM55115 uses a wire gauge that can safely support up to 20-amps and that is the value of fuse supplied with this kit. I can't recommend using a 30-amp fuse in this item. What I can suggest is making your own 30-amp capable outlet by using a 30-amp auto reset circuit breaker # PK54530, 12V power outlet part # DG6112VP and 10-gauge duplex wire # 10-2-1. You'll also need some ring terminal connectors like # 44-5310A, push-on connectors like # DW05709-1...
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Info for this part was:

Employee Michael H
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Michael H
Employee Jameson C
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Jameson C
Employee Adam R
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Employee Joshua S
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