1. Trailer Breakaway Kit
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Hopkins Trailer Breakaway Kit with Built-In Battery Charger - Side Load

Hopkins Trailer Breakaway Kit with Built-In Battery Charger - Side Load

Item # HM20001
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Trailer Breakaway Kit
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Hopkins Side Load Trailer Breakaway Kit - HM20001
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Breakaway system is designed to bring a trailer safely to a stop by activating its electric brakes should it become disconnected while being towed. Built-in charger refuels the included rechargeable battery. Mounts to trailer frame or to jack post. Lowest Prices for the best trailer breakaway kit from Hopkins. Hopkins Trailer Breakaway Kit with Built-In Battery Charger - Side Load part number HM20001 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (49)
  • Q & A (43)
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Hopkins Trailer Breakaway Kit - HM20001

  • Kit with Charger
  • Hopkins
  • Side Load

Breakaway system is designed to bring a trailer safely to a stop by activating its electric brakes should it become disconnected while being towed. Built-in charger refuels the included rechargeable battery. Mounts to trailer frame or to jack post.


Features:

  • Breakaway system activates your trailer's electric brakes if the trailer disconnects from the tow vehicle
  • Built-in charger automatically refuels battery while trailer is connected to tow vehicle
  • Side-loading case is easy to access from the side
    • Polymer construction protects battery from moisture and debris
  • Included hardware offers simple installation
    • Mount system to trailer frame with self-tapping screws or attach to jack post with U-bolts
  • Lockable lid deters theft (padlock sold separately)
  • Breakaway switch installs on your trailer's frame - drilling is required
  • Department of Transportation (DOT) compliant
  • 12-Volt rechargeable battery is included


Specs:

  • Application: single- and tandem-axle trailers with electric brakes
  • Case dimensions: 6-1/4" long x 3-1/4" wide x 5" tall
  • Battery capacity: 5 amp-hours
  • Mounting hole spacing:
    • 6" From center of hole to center of hole horizontally
    • 3" From center of hole to center of hole vertically
  • 90-Day warranty


Note: A breakaway system is required by law in most states for trailers that are equipped with electric brakes and have a GTW of at least 3,000 lbs.



20001 Hopkins Trailer Break-Away Kit with Charger - Side Load - 5 amp/hrs




California residents: click here



Customer Reviews

Hopkins Trailer Breakaway Kit with Built-In Battery Charger - Side Load - HM20001

Average Customer Rating:  4.7 out of 5 stars   (49 Customer Reviews)

Breakaway system is designed to bring a trailer safely to a stop by activating its electric brakes should it become disconnected while being towed. Built-in charger refuels the included rechargeable battery. Mounts to trailer frame or to jack post.

- HM20001
by:

Everything I order work look just as it was so prost to. 251892



- HM20001
by:

Order was complete and delivered in a timely manner. Only problem (minor) was the 7way pigtail was not wired to color code. Had to use test light to get 3 of the wires in correct location. Could be a problem if someone wasn't comfortable with ringing out wires. 375362



- HM20001
by:

Ordered this on Tuesday - arrived on Thursday... awesome delivery time! Bought this to put on my 1996 Coleman/Fleetwood Shenandoah popup camper since for some reason ours didn't come with a breakaway kit. Wanted to mount the battery and charger box on the tongue of the trailer, but the supplied U-bolts that came with the kit will NOT go all the way around the rectangular frame rails of the trailer tongue. Ended up going to the local big-box hardware store and buying some threaded rod and made my own mounting brackets. Instructions included are very easy to follow. Only thing I saw that was missing in the kit that you'll need for installation was a package of tap-splice connectors for connecting the breakaway switch and the battery and charger to the existing trailer wiring. 55391



- HM20001
by:

As always , this is exactly as expected. Shipping took just a little longer than normal. But with what’s going on in this world , I can accept that . I’ll be back for future needs 820452



- HM20001
by:

Great product for replacing my broken unit. Just bolted right up and I was on my way 620481



- HM20001
by:

it arrived in one piece it looks ok i'll know more when it warms up and i instal it . 603597



- HM20001
by:

Great system! 590027



- HM20001
by:

I have not installed this yet but have looked over everything I received with this kit. I couldn't be happier with the it. There are only a few pieces needed that aren't included and they are choice of electrical connectors and a seat tapping screw to attach the switch itself. Everything else is in the box. The instructions are clear and easy to understand. I will be attaching this to the trailer Jack on a 1962 Airstream Ambassador. 571729



- HM20001
by:

Great products as always, arrived much quicker than expected 564952



- HM20001
by:

just rec'd and installed. No updates at this time on performance. 562174



- HM20001
by:

Great service and delivered 3 days early! Have ordered parts from etrailer several times and ALWAYS had good results The parts I ordered this time was cheaper than ANY other web site and fast delivery I live in rural Montana so can't get some parts local I recommend etrailer every time 552799



- HM20001
by:

Worked as it should. 548201


Comments
Nice unit,battery wasnt any good, never would hold a charge.
Mark - 07/31/2019

58461

- HM20001
by:

Everything arrived within 3 shipping days, installation simple and clean. Even though it was by email, customer service interaction was extremely impressive, everything from order receipt acknoledgement through confirmation of delivery. 542379



- HM20001
by:

Everything arrived in a timely manner, their customer service is great. I had to change some things after I ordered to a different part and they were most helpful in helping me get things changed. 515198



- HM20001
by:

was an easy install on a car trailer . 494883



- HM20001
by:

After a year of usage, the product is holding up and working well. 464699



- HM20001
by:

good product,great price.thank you 435761



- HM20001
by:

Rebuilding a utility trailer, this break-away box will fit perfectly for the installation. 362591



- HM20001
by:

The products were acceptable quality and the customer service was UNEQUALED, EXEMPLARY, GREAT, etc. The trailer overhaul job went well and we hauled a capacity load almost 1500 miles in some difficult road conditions, stopping only for fuel and to sleep. We'll use your products again. 355648



- HM20001
by:

great product still working after a year much ranch use 338893



- HM20001
by:

Worked great 321207



- HM20001
by:

Works well, easy to install 314918



- HM20001
by:

Top shelf products, excellent selection, awesome prices. Converting a tandem trailer to electric brakes, these guys had it all from bolt on coupler to the new drums! Love these guys! 292736



- HM20001
by:

Great service, quality product with good instructions 276721



- HM20001
by:

Easy to install, good product.. 257001


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Show More Reviews

Ask the Experts about this Hopkins Trailer Breakaway Kit

  • How to Reset the Hopkins Trailer Break-Away Kit with Charger # HM20001
    You are correct. The system does not have to be reset electrically to allow for normal trailer operation. Instead, like you said, the pin, or what separates the contacts, needs to be put back into place. What happens is, if the trailer detaches from the tow vehicle, the mechanism separating the pins is pulled out. This allows the contacts to touch which in turn engages the break away system to stop the trailer.
    view full answer...
  • Trailer Breakaway System Recommendation for a Tri-Axle Trailer
    If all 3 of the trailer axles have brakes you will need one with enough amperage to be able to apply the trailer brakes on full for at least 15 minutes. The Tekonsha system, # 50-85-313 will work with 1 to 3 axles. I have included a link to a video review for you. Another option is # 2028. I have also included a link to an FAQ article on installing a breakaway kit.
    view full answer...
  • Can Trailer Be Towed if Battery in Breakaway Kit is Dead
    Your trailer's brakes will not lock up from the battery in a breakaway kit, like the Hopkins Brake Master # HM20001 being dead. If the breakaway battery is dead there won't be any power supplied from the system and it wouldn't have any impact on your brakes. Your breakaway battery should be tested before towing. If it's dead then it will not be able to do it's job of engaging your trailer's brakes in the event your trailer is separated from your tow vehicle.
    view full answer...
  • Will a Breakaway Kit Damage the Brake Controller if Tested with the Trailer Connected
    I would disconnect the connector before testing so that you do not back feed power to the Prodigy controller. This is the best way to ensure there is no damage to the controller and to be sure the breakaway system is functioning properly. The breakaway is designed to work when the trailer has detached from the vehicle so the electrical connection would be severed. Most Brake controllers are protected from back feed so if you did test the breakaway with the trailer connected you should...
    view full answer...
  • After Installing New Breakaway Kit on Trailer the Brakes Lock Up when Connected to Different Truck
    It sound like you are describing the Engager breakaway system, # 20099, or something similar. The lights indicate the charge level of the breakaway battery. The issue when you plugged in the trailer to the friend's truck could mean that the connector on his truck is not wired the same as it is on your truck and trailer. I imagine that if the brakes were locked up when the trailer was connected to your truck you would have heard the tires scraping the ground or someone would have flagged...
    view full answer...
  • Difference Between Hopkins Breakaway Battery Kits HM20001 and 20099
    The big difference between the Hopkins Engager breakaway kits is that the # HM20001 does not have a charge status display on the lid like the part # 20099 does. The # 20099 allows you to press a button and know what the charge of the battery is like.
    view full answer...
  • How To Move A Trailer With A Dead Breakaway Battery
    On most breakaway kits such as the Hopkins Brake Master part # HM20001, you will not need to cut or splice any of the wires to move the trailer with a dead battery. If your power supply is not active, then the only effect is that the breakaway system will not send power to your trailer's brakes in a breakaway situation thus allowing for free movement of the trailer. Even if the battery is dead, the brake controller will still allow you to activate your trailer's brakes To prevent further...
    view full answer...
  • Wiring Diagram for Junction Box and/or Breakaway Kit on a Gooseneck Trailer
    If you are talking about a junction box I have included a picture that should help you along with a link to our help article on trailer wiring with additional diagrams. For a breakaway system such as # HM20001 I have added another picture and some links on breakaway systems that should help.
    view full answer...
  • Can the Trailer Breakaway Battery be Used to Power a 12 Volt Interior Light
    You will want to use a standard 12 volt deep cycle trailer battery to operate the interior light. You will NOT want to use a trailer breakaway battery. The breakaway battery is not designed to power other trailer accessories or lighting, it is just designed to operate the breakaway system. The DOT regulations state that a trailer breakaway system needs a dedicated battery. To keep the trailer battery charged you will need to run a 10 gauge power wire like the, part # 10-1-1, from the...
    view full answer...
  • Theft Prevention Recommendations for a 5th Wheel Trailer
    You could remove your breakaway switch pin while your trailer is in storage, however, a determined thief will get what they want in the end. If he went through the trouble to break in and attempt steal your trailer, it would not be a problem for him to simply cut the wires from the breakaway switch. Cutting the wires from the breakaway switch would be fast and easy. Another factor to consider is that the battery will only last for a short time and it will drain completely. Leaving the...
    view full answer...
  • How Much Force does it Take to Pull the Pin on a Break-Away Kit Switch
    It is a simple switch, so brand compatibility should be a non-issue. When the pin is pulled, two pins are allowed to contact and complete the circuit to engage the brakes. Any switch should work fine. I pulled the Hopkins Switch, part # HM20010, to test it out. It does take a good tug to pull it out and close the switch. You should not need to use two hands, but it should not easily slide out. You do not want the pin coming out when you hit a hard bump. I would not repeatedly pull...
    view full answer...
  • Can Trailer Brakes Lock Up if a Breakaway System has a Dead Battery
    No, if the breakaway battery on the trailer is dead and the pin is pulled out of the switch then no power would be sent to the trailer brakes and they would not lock up. If they do lock up then the brakes must be getting power from another source or the battery isn't dead. I recommend checking the wiring for shorts and corrosion and fix any pinched or damaged wires as needed. If you suspect the breakaway system is bad I recommend replacing it. One of the most popular systems we carry...
    view full answer...
  • How to Connect Breakaway Kit to Trailer Wiring Harness
    Thank you for all of the information! One of the common misconceptions with trailer wiring is that you just match up the colors so you are definitely not alone in that regards and I'm glad that you were able to correct the issue. Connecting your trailer brakes to a breakaway kit like part # HM20001 can be a little confusing as well if you aren't familiar with it but we are here to help. I am attaching a few pictures to show how your trailer breakaway wiring needs to be connected...
    view full answer...
  • Maintenance Charge for a Trailer Mounted Battery through a 7-Way Trailer Connector and a GMC Acadia
    To supply a maintenance charge to an auxiliary battery you would connect the 12 volt circuit from a 7-Way trailer connector to the positive terminal of the battery. If the battery is mount on the trailer you would ground it to the trailer frame and it also would not hurt to ground it to the main trailer connector ground. This method will provide a maintenance charge like you have said but it will not charge up a battery. For a battery charger I recommend the CTEK 7002 charger # CTEK56353.
    view full answer...
  • What is the Function for the 3 Wires Coming out of the Charger
    The 3 wire component is the charger and receives 12V power from the vehicle connector and charges the breakaway battery. Now the blue wire coming off the charger will go out to the breakaway switch. I included a video on a similar charger # 20011 for you to look at. It will have the same functions as your charger.
    view full answer...
  • Troubleshooting 7-Way Replacing 6-Way Install Where Brake Output Stopped Working
    The is most likely related to the fact that there are two ways a 6-way will typically get wired and the only difference is that the 12 volt accessory circuit and the brake output circuit are switched. I attached a picture that shows a diagram for a 6-way for you to check out. Most likely something got mixed up when making the conversion due to the difference there so you'd need to check the wiring.
    view full answer...
  • Can a Breakaway System and Brake Controller be Installed at Same Time on 2002 Dodge Grand Caravan
    You can have both a brake controller and a breakaway system since they serve 2 different functions. A brake controller, which may be required by law in your area (check local and state laws) will apply the trailer brakes when you apply the tow vehicle brakes. A breakaway system only applies the brakes should the trailer become uncoupled from the tow vehicle. In many states a breakaway system is also required by law. The breakaway system needs to be able to apply the trailer brakes on...
    view full answer...
  • Should the Cable on Hopkins Break-Away Kit # HM20001 Engage Trailer Brakes If Safety Chains Break
    The breakaway cable on the Hopkins Break-Away Kit, part # HM20001, should engage the trailer brakes if the trailer becomes disconnected from the tow vehicle and the safety chains fail. So you will want the breakaway kit to be the last line of defense against a runaway trailer. As far as length of the breakaway cable, that will be determined by where the breakaway kit will be installed on the trailer. I am including a link to a FAQ page on breakaway kit installation and a link to a...
    view full answer...
  • Can The Battery In The Hopkins Trailer Break-Away Kit with Charger # HM20001 Be Mounted On Its Side
    I spoke with my contact at Hopkins and he said on the Hopkins Trailer Break-Away Kit with Charger, part # HM20001, it is a gel cell battery so it can be mounted on its side. I am including a link to a FAQ page on trailer breakaway systems and a video link to a installation of a breakaway kit.
    view full answer...
  • Trailer Brake Magnets not Not Working on Snowmobile Trailer Towed by a Chevy 2500 HD Silverado
    I think you are going in the right direction. I would start with the ground connections since that is the easiest fix for this type of situation. If the grounds are not making good connections, you are going to have issues. Applying power directly from a 12 volt battery is very different than applying power from a brake controller mounted on the truck and going through two trailer connectors. Make sure the brake magnet wires are attached to a clean, rust and corrosion free part of the trailer...
    view full answer...
  • Troubleshooting Lighting on Snowmobile Trailer that Doesn't Work
    You have the issue isolated to being on the trailer somewhere. What you will need to do is first check that the trailer connector is clean and free of any corrosion as that's the easiest thing to check. Next you will want to check the conditions of the ground wire from that connector to the frame of the trailer. Since all of the lights aren't working it makes me think the main ground that feeds all the lights isn't sufficient. Aside from that it could be a wiring issue to the assemblies...
    view full answer...
  • What Connectors to Install on Vehicle and Trailer that Use 4-Way for Adding Battery Charge Circuit
    You are going to have to upgrade your 4-way setup to a connector style that has an additional pin for the 12 volt circuit for the breakaway kit. On your vehicle you would want to go with the # 37185 to convert it to a 7-way. This will plug right into the 4-way and will allow you to run a 10 gauge wire like part # 10-1-1 through a circuit breaker # 9510 to the positive post of the battery. Then on your trailer you would need to remove the 4-way and install a # H20046. The brown wire...
    view full answer...
  • Troubleshooting Trailer Brakes That Stop Working When It Rains
    I'll start this off by saying that I don't think the issue has anything to do with the breakaway switch or junction box, It sounds to me like the rain is causing a short on your wiring and this is what is causing your brakes to go out; since you just had new leaf springs put on the 5th wheel trailer it's possible that something was damaged during the repair process. I would first examine the ground wire connection on your trailer-just because that's an extremely common cause of shorts...
    view full answer...
  • Battery Charger for Trailer-Mounted Auxiliary Battery
    A trailer breakaway battery charger kit like # 20011 will be needed only on a trailer that does have electric drum brakes and a breakaway system like the Hopkins # HM20001. For maintaining a trailer-mounted battery that supplies power to lights, vents, etc you can use the 12V power circuit in the 7-way connector. This 12V feed is carried on the pin at the 1-o-clock position as you view the 7-way socket. Please refer to the linked photo and article. This 12V feed has enough power to...
    view full answer...
  • Breakaway Kit for Use With Electric Brakes
    For a breakaway kit with the use of Dexter 10" x 2-1/4" electric brakes such as # 23-26-27 (manual adjusting) or # 23-468-469 (self-adjusting) I recommend the Hopkins Trailer Breakaway Kit # HM20001. The reason I like this breakaway kit is because it has a built-in battery charger for convenience and because it is simple to mount the battery box, which you can do with either self-tapping screws or U-bolts, both of which come with the kit. I have added links to video installs of...
    view full answer...
  • How To Add Electric Brakes to a 1995 Coleman Stony Creek Trailer
    In order to add electric drum brakes to your trailer you will need braking assemblies, hubs/drums, trailer wiring, and a breakaway kit. I was able to cross reference all of the parts in the photo you have attached and attached these for you below. Dexter Electric Trailer Brake Kit - part # 23-47-48 Dexter Trailer Hub and Drum Assembly - part # 8-257-5UC3-EZ (2) ***Replace Included Grease Seal with Redline Grease Seal part # 13194 Trailer Wiring 7-Way Upgrade Kit - part # e99011 Hopkins...
    view full answer...
  • Tow Dolly Recommendation for Towing 2018 Toyota RAV4
    The Roadmaster Tow Dolly part # RM-2000-1 would be a great dolly to use to tow your 2018 Toyota RAV4. Your wheel size would not be an issue either. This comes with wheel nets that will fit well and brakes so you'd be set. The Roadmaster Tow Dolly # RM-2000-1 does not come equipped with a breakaway system but you can certainly add one. I recommend the Hopkins # HM20001, because of how easily it installs. They aren't a requirement but it would be a great idea.
    view full answer...
  • Parts Needed for Installation of Electric Brakes on a Coleman Pop-Up Camper With 8 Inch Wheels
    The 8 inch diameter wheel on your Coleman Fleetwood pop-up camper is not large enough to accept an electric brake hub and drum assembly. Seven inch brake assemblies like # 23-48 that you selected work with the Trailer Hub & Drum Assembly, item # 8-257-5UC3, which will fit in wheels starting at 10 inches in diameter. You would need to upgrade your wheels and tires to either a 5.30-12 load range c wheel and tire combination, or a 205/65-10 load range c wheel and tire to meet the capacity...
    view full answer...

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Info for this part was:

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Video Edited:
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Expert Research:
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Michael H
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Jeff D
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Jameson C
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John H
Installed by:
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Updated by:
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