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  1. RV Plug Adapters
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Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 50 Amp

Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 50 Amp

Item # CAM55313
Retail:$270.79
Our Price: $232.89
You Save: $37.90
RV Plug Adapters
Shipping Weight: 7 lbs
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This circuit analyzer plugs into a 50-amp receptacle at an RV park to test for improper wiring. Diagnostic lights indicate faults so that you can avoid damage to your RV. 50-Amp ends have handles for easy removal. Also acts as a surge protector. Great Prices for the best rv plug adapters from Camco. Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 50 Amp part number CAM55313 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (316)
  • Q & A (0)
  • Videos (1)
  • Photos

Camco RV Plug Adapters - CAM55313

  • 50 Amp to 50 Amp
  • Adapter Cord
  • 50 Amp Female Plug
  • 50 Amp Male Plug
  • RV Receptacle to Extension Cord
  • 27-1/2 Inch Long
  • Camco

This circuit analyzer plugs into a 50-amp receptacle at an RV park to test for improper wiring. Diagnostic lights indicate faults so that you can avoid damage to your RV. 50-Amp ends have handles for easy removal. Also acts as a surge protector.


Features:

  • 125-Volt circuit analyzer helps protect your RV from improperly wired electrical boxes and power surges
  • Diagnostic lights indicate faults before you connect your 50-amp electrical cord
  • Built-in handles on both ends make unplugging easy
    • 50-Amp male end plugs into 50-amp receptacle
    • 50-Amp female end connects to your RV's 50-amp electrical cord
  • Weather-resistant PVC and polycarbonate protects electrical components
  • Yellow body and ends are easy to see in low light


Specs:

  • Length: 27-1/2"
  • Wire gauge: (3) 6 gauge and (1) 10 gauge
  • 1-Year warranty


55313 Camco Motor Home Voltage Analyzer with Handles - 125 Volts - 50 Amp - 27-1/2" Long





Video of Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 50 Amp

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




Video Transcript for Camco RV Wiring - Power Adapter - CAM55313 Review

Today we're going to take a look at the Camco 50 amp RV power defender circuit analyzer. This circuit analyzer will plug into your 50 amp receptacle at an RV park to test for improper wiring. This is a 125 volt circuit analyzer which will help protect your RV from improperly wired electrical boxes and power surges. Right up at the top here there's four diagnostic lights which will indicate faults before you even connect your 50 amp electrical cord so that you can avoid damage to your RV. Right down here on the bottom is a chart that'll show you, when lights are showing, what the problem might be. If you notice on each end here, they have built in power grip handles. Makes unplugging very easy.

Right up here, this is what'll plug in. This is the 50 amp male end. This will plug into your 50 amp receptacle. Right down here is the 50 amp female end. This is what'll connect to you RV's 50 amp electrical cord. If you notice both ends, the plugs are yellow.

It makes it easy to see in any low light conditions. The box here is a weather resistant PVC and polycarbonate which will protect any electrical components. Overall length on this item, from end to end, is 27 and a half inches and the wire gage used in this is three six-gage and one ten-gage wire. That should do it for the review on the Camco 50 amp RV power defender circuit analyzer.

Customer Satisfaction Score:


Customer Reviews

Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 50 Amp - CAM55313

Average Customer Rating:  4.9 out of 5 stars   (316 Customer Reviews)

This circuit analyzer plugs into a 50-amp receptacle at an RV park to test for improper wiring. Diagnostic lights indicate faults so that you can avoid damage to your RV. 50-Amp ends have handles for easy removal. Also acts as a surge protector.

by:

This product proved it’s worth this spring. At a large RV Resort we were experiencing problems with our inside electrical outlets and water heater (on electricity setting) - I checked the Camcorder Power Defender and it showed that they electrical box had issues. Maintainance came and fixed box - we were good to go. The unit protected and informed. Definitely provides a sense of security.



by:

Product arrived on time and used it the next day. So far performing just fine. Etrailer staff very helpful.



by:

Bigger than expected, but it worked when I tested it on my 50 amp receptacle.



by:

This is a must have to ensure no damage to your RV’s electrical system. Campgrounds can be unpredictable and this dogbone attachment is a layer of safety that should be a top priority for all campers. It works perfect as designed and I highly recommend this circuit analyzer.



by:

I had done a previous order with e-trailer which was excellent service and mailing and receiving the 5th wheel tailgate was right on time . I dealt with pat c. this time and she was very helpful. I purchased a CAMCO surge protector..55313..for the 5th wheel .I haven't used it yet but will be very soon. again, the service rep did a wonderful job helping me to decide..the item arrived as stated..i will purchase items in the future from e-trailer...great service and quality items



by:

Got product in a timely manner, only didn't know which carrier it on. Very satisfied

Mike H.

4/25/2018

Everything is working to expectations



by:

The product was shipped in a timely manner and in a sturdy box for a good price. It is hard to tell if a surge protector is working , but after a year we have had no electrical issues with our trailer since using. So i would have to say I am pleased with the product and etrailer.



by:

Just bought a new RV that uses 50 amp power. Too early to tell operational issues, but the build quality is rugid. Before this we bought a 30 amp surge protector from Etrailer by Camco and used it for 3 years with no problems. Even went through a few thunderstorms and power outages with no damage. We feel confident that this 50 amp surge protector will perform similarly.



by:

The step rugs, tire pressure gauge & surge protector were received promptly & are exactly as pictured and described. I am very satisfied & will not hesitate to to use etrailer again!



by:

Feel much better with this being utilized. The day this was delivered and I was plugging it in I noticed one of the electrical legs was fried and didn’t know it. Sure don’t want any issues with our new fifth wheel



by:

The easy set up to protect my unit from unknown electrical issues before and after hookup, I secure with cable locks to deter theft.



by:

Tested this and everything is good to go. Thank you etrailer for the fast service.

Dennis C.

6/21/2020

Great



by:

Just received. Huge compared to tiny 30 amp unit. Trailer is 30 amp but a few places we are visiting this year are 50 amp pedestals. Cheap insurance to prevent frying trailer electrical systems.



by:

A must have on your RV. This one is heavy duty and great quality. Great, fast delivery from e trailer.



by:

thanks . you guys are great

Robert S.

11/23/2022

use this all the time. works great.



by:

I’ve now placed my 3rd order with etrailer; each order has been promptly filled and has arrived sooner than my expectations! etrailer has now become my “go to” company for my RV needs.
Additionally, their prices are some of the most competitive around.



by:

Great product. Peace of mind knowing RV is protected against power surges.



by:

It is larger than expected, but not a problem stowing for travel. With the investment in this product, I plan on securing it once it is plugged in . I do feel more at ease knowing we are protected from power surges. All it takes is one storm and a lightening hit near by to really hurt the electronics in the camper. That gets expensive.



by:

Just like described, now I can plug in my 50 amp trailer and check circuit's, and make sure power is sufficient.



by:

This is a great company to do business with. The product is just what I needed and very good quality. I purchased it and then found it cheaper at another store. Etrailer matched the price and then some ....I will buy all my stuff from these guys. Thank you so much.



by:

Great price and service. Simple, relatively inexpensive protection for your electrical system



by:

Just installed. Looks good. Thankfully haven't experienced an electrical event that would test the efficacy.



by:

Very prompt delivery. Product was in the original display package. I have not had a chance to try it out yet, but I have had excellent cooperation from etrailer on my past purchases.



by:

I upgraded my trailer, so I stuck with my Camco dog bone. It’s been great!



by:

Unbelievable shipping, received my order well before I needed it. Can’t wait to put it to use! Etrailer.com definitely has the service and the products.


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See what our Experts say about this Camco RV Plug Adapters

  • Difference Between Camco RV Power Defender and Circuit Analyzers
    The 30 Camco RV Power Defender Voltage Protector # CAM55301 is like a circuit breaker and automatically resets if there's a surge whereas the 50 amp Circuit Analyzer part # CAM55313 is like a fuse and it only can handle one surge. For a 50 amp breaker style you'd need the part # CAM55306.
    view full answer...
  • Can the Camco RV Power Defender Be Used on a 220v Plug with 50amps
    I checked with my tech contact over at Camco and they assured me that there wouldn't be an issue when using the Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 50 Amp # CAM55313 on a 220v breaker as long as it is designed for 50amp service. This unit will operate normally in this scenario.
    view full answer...
  • Surge Protector When Using Adapter to Connect 50 Amp Camper to 30 Amp Service
    In order to plug a 50 amp camper into a 30 amp hookup at a campsite you will indeed need an adapter, for which the Mighty Cord # A10-3050FHVP will work perfectly. With this particular setup you would still want to use a 50 amp surge protector like # CAM55313 for one time surge protection or # CAM55306 that will automatically reset and can be used again and again. Since your camper is rated for 50 amps you just have to protect against surges over this, so you wouldn't need to lower the...
    view full answer...
  • How Will the Camco RV Power Defender Hold Up Under Lots of Rain
    The Camco RV Power Defender Circuit Analyzer Dogbone # CAM55313 is weather resistant, however it is not waterproof (meaning that it can be submerged and still function). When I reached out to my contact at Camco he said that no matter what product is used, he always recommends covering the connections with a plastic bag and trying the opening off just as a precautionary measure. Be sure to cut a small hole in the bag to allow a little bit of airflow to the unit.
    view full answer...
  • Recommended Power Defender Circuit Analyzer and Voltage Monitor Options
    The Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 50 Amp # CAM55313 is the correct circuit and power surge protector for a 50 amp system. This is a one time protector that could save an appliance or your entire system. The Camco RV Power Defender Voltage Monitor - 50 Amp # CAM55306 has multilevel surge protection and visually alerts user to faults. It has a reconnect delay to protect your bigger systems like AC units. It will automatically disconnect when dangerous voltage...
    view full answer...
  • Joules Rating of Camco RV Power Defender Circuit Analyzer Dogbone # CAM55313
    I spoke with my contact at Camco and the Joules rating for the Camco RV Power Defender Circuit Analyzer Dogbone # CAM55313 that you referenced is 4,200.
    view full answer...
  • Comparing the Camco RV Power Defender Circuit Analyzer and Voltage Protector
    The Camco RV Power Defender Circuit Analyzer part # CAM55313 and Camco RV Power Defender Voltage Protector part # CAM55306 are similar in that they both work to protect the trailer from power surges and have diagnostic lights to help with troubleshooting. However, the Voltage Protector goes a bit beyond this as the voltage detection system is much more sophisticated sensing both high and low voltages in addition to surges. The Circuit Analyzer can only detects power surges, not high and...
    view full answer...
  • Does Camco RV Power Defender Circuit Analyzer CAM55313 Protect Against Low Voltage
    The Camco RV Power Defender Circuit Analyzer # CAM55313 does not protect against low voltage. But there is a similar product that does both low voltage and surge protection. It is the Camco RV Power Defender Voltage Monitor # CAM55306. It disconnects power in a dangerous voltage situation and will reconnect when voltage gets to the 102 to 132 volt safe range.
    view full answer...
  • Comparison of Camco Circuit Analyzers and Voltage Protectors
    Camco Power Defender voltage protectors, parts # CAM55301 and # CAM55306, have a bit more protection than the circuit analyzers, parts # CAM55310, # CAM55312, and # CAM55313. Both the analyzers and protectors have diagnostic lights for faults but beyond that the analyzers are just surge protectors. The voltage protectors go a little further by detecting the voltage and shutting off if the voltage level falls below 102V or goes over 132V. The voltage protectors also reset themselves...
    view full answer...
  • Do 30-Amp and 50-Amp Surge Protectors Use Different Connectors
    50-amp service and 30-amp service use different connectors. The 50-amp surge protector # CAM55313 uses 4-prong connectors while the 30-amp surge protector # CAM55301 uses 3-prong connectors. So you will need to have one for each type of campground power outlets.
    view full answer...
  • Recommended RV Power Cord For Converting 50 Amp to 30 Amp for RV Power
    An 8 gauge cable would help the handles from getting so hot, but unfortunately we don't carry anything like that. The 10 gauge wire is sufficient to work properly without overheating. The Mighty Cord RV Power Cord Adapter - 50 Amp Twist Lock Female to 30 Amp Male - 25' # A10-3050EHD is most likely your best option for conversion. You may want to consider using a surge protector like # CAM55313 to protect your wiring when using a straight 50 amp male or the Camco RV Power Defender Voltage...
    view full answer...
  • Can 30 Amp Circuit Protection be Used on 50 Amp Circuit of RV
    If you use a 30 amp surge protector on a 50 amp circuit you'd be limiting the circuit to 30 amps and there isn't a way to increase the amperage. You'd want something like the part # CAM55313. For a 50 amp extension cable that is 50 feet long the part # A10-5050E would work great. For 25 feet part # A10-5025EH, or for 10 feet # A10-5010EH.
    view full answer...
  • Differences Between Camco Circuit Analyzers and Power Defenders
    You are correct. The 30 Camco RV Power Defender Voltage Protector # CAM55301 is like a circuit breaker and automatically resets if there's a surge whereas the 50 amp Circuit Analyzer part # CAM55313 is like a fuse and it only can handle one surge. For a 50 amp breaker style you'd need the part # CAM55306.
    view full answer...
  • Recommended RV Power Monitor/Defender for 50-Amp Service
    No, instead you will want to use the 50-amp version of the Camco Power Defender, which is their part # CAM55313. This provides the same circuit analyzer and voltage monitoring functions along with surge suppression but in the 50-amp capacity you need. A similar but better option is their RV Power Defender Voltage Monitor # CAM55306 which provides those functions but adds the ability to automatically disconnect when dangerous incoming voltage levels are detected. It will automatically...
    view full answer...
  • Differences Between the Two Camco RV Power Defender Units
    The difference between the Camco RV Power Defender 30 amp, part # CAM55312 and the Camco RV Power Defender 50 amp, part # CAM55313 is the amperage that they work on. The 50 amp variant is built for higher power drawing RVs, while the 30 amp is designed for lower power RV's. You'll want to match your particular plugs and required amperage to your RV when choosing which product to buy.
    view full answer...
  • 50-Amp Rated RV Power Protection Device to Guard Against Bad Wiring and Voltage Irregularities
    Yes, Camco offers two items similar to the 30-amp RV Power Defender Voltage Analyzer # CAM55310 that are suitable for your RV's 50-amp electrical service. Part # CAM55313 is a 50-amp Power Defender Circuit Analyzer that provides both diagnostic and surge protection functions. Camco also offer the 50-amp RV Power Defender Voltage Monitor # CAM55306 which adds the additional capability of automatically disconnection when dangerous voltage levels are detected, anything below 102V or above...
    view full answer...
  • What is the Difference Between a Power Analyzer and a Surge Protector 50 Amp Adapter
    An analyzer such as # CAM55313 has diagnostic lights to indicate faults so that you can avoid damage to your RV. This model also offers surge protection. A model that offers only surge protection would not have any diagnostics. But some have both. There is also the Power Defender # CAM55306 that takes surge protection a step further by having the ability to detect too much AND too little power and disconnect and reconnected as needed.
    view full answer...
  • When Going from 30 Amp Power Source to 50 Amp RV What Power Amperage Circuit Protection is Needed
    You want circuit protection to protect your RV's wiring which is rated for 50 amp....so you'd want to go with 50 amp circuit protection. For that we have the part # CAM55306 which automatically resets or the part # CAM55313 which is more like a fuse and is internally damaged and needs to be replaced in the event of a surge. To adapt this to a 30 amp power source you'd want the part # A10-3050FHVP and you'd be set.
    view full answer...
  • Does Yamaha Generator Need Grounding Rod when Used with 50 Amp Travel Trailer
    You do not need to drive a grounding rod into the ground at your campsites when using your Yamaha generator (or any standard generator) to power your 50 amp RV. Surge protector is probably still a good idea although your Yamaha generator is pretty advanced and most likely would not need one under most circumstances. For a 50 amp circuit defender we have the part # CAM55313 which will work great.
    view full answer...
  • 30 Amp Circuit Analyzer Recommendation for RV Camp Site Testing
    I spoke to my contact at Camco and while I have a solution for you, the part # CAM55313 that you referenced would not work for you since it is designed for 50 amp service. Instead you would need the part # CAM55312 as it is designed for 30 amps.
    view full answer...
  • Does Camco RV Power Defender Circuit Analyzer 30 Amp Item # CAM55312 Reset Manually
    The internal circuit board of the Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 30 Amp Item # CAM55312 will shut down the flow of power if it senses a spike or other dangerous condition, and won't allow the power to flow again until the problem is corrected or the voltage drops down to a safe level. There is no way to manually reset it.
    view full answer...
  • Recommended Adapter and Surge Protector for 50 Amp System to 30 Amp Shore Power
    With your 50 amp camper system, I recommend using the Power Grip RV Power Maximizer - 50 Amp Female to 15 Amp Male and 30 Amp Male # CAM55025 to allow you to plug into 30 amp power supplies. Then you will use a surge protector like # CAM55306 for multiple surge protection or # CAM55313 for single time surge protection. Many people use the Camco Power Grip Cable with Lock # CAM44290 to protect their investment. Unless you convert your entire system to 30 amp, I don't recommend using a...
    view full answer...
  • Can Camco RV Power Defender Circuit Analyzer Dogbone Be Used with Connector Adapters
    Yes, the Camco RV Power Defender Circuit Analyzer Dogbone # CAM55313 that you referenced can work with various socket adapters like what you mentioned.
    view full answer...
  • Availability of 50-Amp RV Dogbone
    We offer Camco RV Power Defender Circuit Analyzer Dogbone # CAM55313 which is for 125-volt/50-amp applications. It measures 27-1/2-inches. The unit's diagnostic lights indicate faults before you connect your 50-amp electrical cord to help protect your RV from improperly wired electrical boxes and power surges. Built-in handles on both ends make unplugging easy.
    view full answer...


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Do you have a question about this RV Plug Adapter?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeff D
Installed by:
Jeff D
Employee Jacob W
Written by:
Jacob W
Employee Hannah L
Updated by:
Hannah L

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