1. 12V Power Accessories
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  3. Power Inverter
  4. 3 AC Outlets
  5. 2 USB Outlets
  6. 1000 Watt
Power Inverter 1000 Watts with Three AC Receptacles

Power Inverter 1000 Watts with Three AC Receptacles

Item # WC3720
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12V Power Accessories
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Compact 1000 watt AC power inverter lets you use your vehicle's electricity to run your household appliances. It has 3 standard AC outlets, 2 USB power ports, and power and fault LED's. The internal fan prevents the unit from overheating. Call 800-298-1624 to order Wagan 12v power accessories part number WC3720 or order online at etrailer.com. Free expert support on all Wagan products. Guaranteed Lowest Price and Fastest Shipping for Power Inverter 1000 Watts with Three AC Receptacles. 12V Power Accessories reviews from real customers.
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  • Reviews (7)
  • Q & A (73)
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  • Why etrailer?

Wagan 12V Power Accessories - WC3720

  • Power Inverter
  • 3 AC Outlets
  • 2 USB Outlets
  • Wagan
  • 1000 Watt

Compact 1000 watt AC power inverter lets you use your vehicle's electricity to run your household appliances. It has 3 standard AC outlets, 2 USB power ports, and power and fault LED's. The internal fan prevents the unit from overheating.


  • Converts 12 volt DC power from vehicle to 115 volt AC power for appliances
  • 1000 Watts Continuous TrueRated Power
  • 2500 Watt Surge Power
  • Power options:
    • (3) United States standard 3-prong outlets
    • (2) 5V, 3A Shared USB power ports
  • Built-in safety features include:
    • Auto reset short circuit protection
    • Overload protection
    • Low battery alarm and shutdown
    • Cooling fan
  • 3' DC cable included

Sample Applications:

  • Laptop Computer
  • Video Game Console
  • Large Screen TV
  • Printer/Computer/Fax
  • Single Range Electric Stove
  • Microwave
  • Small Refrigerator
  • Power Strip
  • Coffee Maker
  • Hair Dryer

Note: If the number of watts required for your electronic device is not listed on the item itself, the number of watts can be determined by multipling the number of amps by the number of volts (amps x volts = watts).

Continuous Power1000 Watts
Peak Surge Power2500 Watts
AC Output Voltage115V
Input Voltage Range10-15V
AC Output WaveformModified Sine Wave
Maximum Efficiency90%
Battery Drain w/ No AC LoadLess than 0.95 amps DC
Low Battery Alarm10.5V +/- 0.5V DC
Low Battery Shutdown9.5V +/- 0.5V DC
Input Range11V to 15V
Internal FusesATO 35A (x3)
Weight3 lbs
Dimensions10.3" x 5.4" x 2.5"

Wagan Tech 37201 1000 Watt AC Inverter - 2,500 Watt Surge Power - 115 Volt AC Output

Replaces 2294

Installation Details WC3720 Installation instructions

Customer Reviews

Power Inverter 1000 Watts with Three AC Receptacles - WC3720

Average Customer Rating:  4.9 out of 5 stars   (7 Customer Reviews)

Compact 1000 watt AC power inverter lets you use your vehicle's electricity to run your household appliances. It has 3 standard AC outlets, 2 USB power ports, and power and fault LED's. The internal fan prevents the unit from overheating.

- WC3720

This inverter is working fine. Have not put a large load on it, but all else seems to be good.

- WC3720

Awesome Product!!

- WC3720

I think this will be good as soon as I figure out where to put it in my trailer. its serious

- WC3720

Haven't used the product yet , however, the USPS did nice job of practically destroying the package and took it forever to get here. I would prefer ups or fed ex because it seems like they care.

- WC3720

Sharon was very helpful!

- WC3720

- WC3720


Ask the Experts about this Wagan 12V Power Accessories

  • Recommended Vent Setup to Cool Enclosed Trailer Mobile Workshop
    Even the smallest RV air conditioning units we offer will require 115-volt AC electrical service of at least 11-amps to operate properly. The Atwood Air Command Rooftop RV Air Conditioner will draw almost 4000-watts at startup and even once running it will still need close to 1300-watts to operate. Delivering this amount of power via high capacity 12V batteries and an inverter such as the 5000-watt Go Power # 34280179 will be a fairly costly and bulky proposition. Instead what I recommend...
    view full answer...
  • Will the Power Inverter 1000 Watts with Three AC Receptacles Be Enough for a Coffee Maker
    The Power Inverter 1000 Watts with Three AC Receptacles part # WC3720 provides 1,000 watts of continuous power and 2,500 watts of surge power. These are the two figures you need to look at for appliance compatibility. This will be ideal for smaller coffee makers which produce around 2 cups of coffee. For 8-10 cups you'd need somewhere between 1,000 - 1,500 watts continuous so the Go Power Industrial Pure Sine Wave Inverter part # 34279950 would be a better option. That said you'd want to...
    view full answer...
  • How To Power 1000 Watt Inverter in Truck Bed for Mini Fridge
    The Power Inverter 1000 Watts with Three AC Receptacles part # WC3720 comes with 6 gauge wire leads which are designed to be attached directly to a battery. If you wish to extend these leads you can do so but you'd need to use a larger gauge, the Bulldog Winch Wiring Kit part # BDW20043 would be the perfect option for this as the length would get you to the truck bed from the engine bay no problem and it comes with disconnects for when the inverter needs to be removed. The 4-pole trailer...
    view full answer...
  • Inverter For Powering Fridge While Driving to Campsite
    What you can do is use an inverter like you said, though this won't plug in, you will need to wire it from the 12 volt circuit on your trailer's 7-way. What you can do is use the Power Inverter 1000 Watts with Three AC Receptacles # WC3720. This has a power wire which you'll connect to your 12 volt circuit and a ground wire so you will need to make sure you are able to mount the inverter somewhere you can get a good ground. Otherwise, you would need to connect an inverter directly to...
    view full answer...
  • Best Way To Power an Enclosed Travel Trailer
    I do have a few options for you to power a cordless drill, lights, and coffee pot inside you enclosed travel trailer but using a solar panel would not be the best or most cost effective setup. Basically, you are going to end up having to cover the entire roof of your trailer to power the above items. Instead, I recommend purchasing a 12 volt auxiliary battery like the one you would find in a car and then using a power inverter like part # WC3720 as well as a battery charger like part...
    view full answer...
  • Could Solar Panels Power RV AC Unit
    Air conditioners draw way too much amperage for use off of a solar panel. You'd need monstrous solar panels for that which wouldn't be possible in a trailer setup. For mobile power of an AC unit your best option is a generator like the part # 289-SUA9000E as a battery is going to be drained quickly from the higher draw of AC units.
    view full answer...
  • How to Use an AC Powered Air Conditioning Unit on a DC Powered Travel Trailer
    I do have a way for you to install an AC powered air conditioning unit on your travel trailer that operates on DC power but the 12 volt power circuit on the 7-way trailer connector will not be sufficient to power an inverter running a 10,000 btu air conditioning unit. A 10,000 btu air conditioner in going to require around 2,000 watts for startup and 700 watts of continuous power to run. These figures are averages and you will want to check your unit for exact specifications. If you...
    view full answer...
  • Wiring Wagan WC3720 Inverter to Two 12v Battery in Series
    If you actually mean that they're wired in parallel, where they're providing more capacity but still putting out 12v of total power, the Wagan 1000w Power Inverter # WC3720 will work for your application. If these batteries are wired in series, which would give you a 24v output you would need to go with a 24v power inverter similar to the GoPower Industrial Pure Sine 1000w # 34279949 . This inverter provides a GFCI outlet for added safety, in addition to the added voltage capacity. I'm...
    view full answer...
    Image 1 for Image 2 for
  • Power Inverter to Run Fan or Heater in Stock Trailer
    You may be able to use an inverter, depending on the type of battery on your stock trailer. If it is a charged 12V vehicle battery, then yes, you would be able to use an inverter such as the Power Inverter # WC3720. Apart from that, you would be able to use a generator such as the Goal Zero Yeti 150 Solar Generator # 287-42060 which is safe for indoor use and has an AC inverter so you can plug in a fan or heater for your children.
    view full answer...
  • What Deep Cycle Battery is Needed to Run 450 Watt Appliances for 7 Hours with Inverter # WC3720
    You will need a deep cycle battery with a capacity of at least 315 amp hours to run 450 watts of power for 7 hours. If you check on page 7 of the linked instructions for the Power Inverter 1000 Watts with Three AC Receptacles # WC3720 it states to divide the amount of watts you are using by 10 (450/10 = 45) and then multiply that by the amount of hours you need them to last (7) which then gives you the amount of amp hours your battery needs to be (45 x 7 = 315). As noted in the...
    view full answer...
  • How to Install the Wagan 1000 Watt Power Inverter # 02294
    The Power Inverter, # WC3720, comes with two 6-gauge wires with ring terminals and alligator clamps. They are only a few feet long. This inverter can be hard wired and the proper gauge will depend on how long you plan to run the wires. For example, if you will be running the wires 8 ft round trip, then you will want to use 6 gauge wire. If you will need 9 - 10 ft of wire, then you will need to use 4 gauge wire. If the cables will be running 11 -21 ft round trip, then you will want to...
    view full answer...
  • Can Inverter Run Off Trailer Battery to Cool Fridge When Driving
    You can absolutely connect the Power Inverter 1000 Watts with Three AC Receptacles # WC3720 as a way to run your Furrion Refrigerator for RVs # FCR17ADA-BL while you are traveling. To do so you would use a battery box like you mentioned, the NOCO Snap-Top Battery Box with Strap for Group 24 to Group 31 Batteries - Vented # 329-HM318BKS, but you would also need a charger for that battery. The charger will take power from your tow vehicle's battery and charge the auxiliary battery which is...
    view full answer...
  • How to Charge My Tools Overnight in my Enclosed Trailer
    Your best bet here is going to be an on board battery the you hook an inverter up to. You can use the Power Inverter 1000 Watts with Three AC Receptacles part # WC3720 . This offers three AC receptacles that would allow you to plug your strip into. It will connect directly to your battery so you would not have to worry about hooking it up each day. Since you will have the trailer plugged in during the day use the CTEK MULTI US 7002 12-Volt Universal Battery Charger part # CTEK56353...
    view full answer...
  • Inverter Recommendation for Powering Outdoor Refrigerator
    What you are asking about is very possible, but you'll want to consider how much amperage the fridge draws to see if your charging system/battery will handle the load. Going with heavier gauge wire is definitely recommended. Especially since you mentioned it's a distance of 20 feet. How heavy does depend on the amperage draw of the fridge as well. The Wagan inverter part # WC3720 would be a great choice for this as it can put out up to 1,000 watts of continuous power. One of it's intended...
    view full answer...
  • Connecting 2 6-Volt Batteries in Series to Power Inverter 1000 Watts # WC3720
    You'd have to have the 6 volts wired in series to double their voltage so that Power Inverter 1000 Watts with Three AC Receptacles # WC3720 can be connected to it. I attached a diagram that shows how to do this.
    view full answer...
    Image 1 for
  • Best Way to Power AC Fridge in Trailer When Traveling
    The best way to do what you are looking for is to use a smaller inverter like the part # WC3720 ran from a battery installed in your trailer to power the fridge. You'd want to use 10 gauge wire like part # 10-1-1 ran from the 12 volt accessory circuit of the 7-way to the trailer's positive post and you'd be set.
    view full answer...
  • Recommended Power Inverter for 800 Watt Microwave
    For an 800 watt microwave you would need an inverter with power surpassing that surge max wattage. I recommend the Power Inverter 1000 Watts with Three AC Receptacles # WC3720 for that application which has a surge power of 2500 watts. You can run other items at the same time with this inverter depending on the wattage of those other items. If you want to be able to run multiple things with high wattage like a small refrigerator or coffee maker at the same time as the microwave, I...
    view full answer...
  • Which is Bettery for Charging Batteries Modified Wave or Pure Wave Inverters
    For charging a battery it is generally recommended to use a pure sine wave charger instead of a modified wave charger/inverter for the best charge although there's plenty of people online who will say it's no big deal either way. The part # WC3720 is a modified wave and for a somewhat similar version that is pure wave we have the part # WC2600.
    view full answer...
  • How to Use an AC Powered Mini Fridge in a DC Powered RV
    In order to convert the AC power your mini fridge uses to the DC power your RV runs on, I recommend the Three AC Receptacle Power Inverter part # WC3720. The power inverter is capable of handling up to 1000 watts of continuous power which should be more than enough for your mini fridge. It comes with 2 3 foot long DC cables with ring terminals already attached. The inverter has an auto reset feature built into the device in addition to cooling fans, and a low battery alarm. I have attached...
    view full answer...
  • How Does Power Inverter Attach to Trailer that Uses Solar Panels with Converter
    So all of your charging and power circuits run to your trailer battery so all you need to do to install an inverter on it like the Wagan part # WC7320 is run the power and ground wire of it to the battery and you're set. Since you already have a converter on the solar panel charge line for the battery that won't be an issue again either. This would be a large enough wattage inverter for the setup you have as well.
    view full answer...
  • Inverter Recommendation for Trailer Interior for Powering Lighting
    Do your interior lights power with 12 volts or are they AC power? Are you looking for an inverter to convert to 120 volts? We have inverters like the part # WC3720 which converts 12 volts to 120 which then gives you outlets for the lights to plug into if they are the standard interior style of lights.
    view full answer...
  • How to Determine Correct DC to AC Inverter Power Rating for 800-Watt Load
    It is never an ideal situation to use a device continually at its absolute maximum capacity. Since you are powering an 800-watt motor with an 800-watt inverter it is definitely being strained and that is the cause for the inverter's alarm. Ideally your inverter will have much more capacity than the connected device requires. It is definitely not a good idea to use an 800-watt inverter with an 800-watt device. All devices will draw more peak power than their continuous rating suggests. The...
    view full answer...
  • How to Connect Series-Wired Batteries to Power Inverter
    When two batteries are wired in series, such as with your two 6V batteries wired together to give you 12V operation, the negative terminal on one battery and the positive terminal on the other will be what you connect to your inverter. The linked diagram shows a series wiring arrangement (but just for two 12V batteries wired to deliver 24V).
    view full answer...
    Image 1 for
  • How Long Could a 130 amp/hour Battery Power a 1,200 Watt Coffee Maker
    So 1,200 watts at 120 volts would pull 10 amps. A 130 amp hour battery would be able to supply 13 hours of power with a 10 amp draw on it.
    view full answer...
  • Are Power Inverter With Continuous Power Modified Sine or Pure Sine Wave?
    Continuous power does not mean modified or pure sine wave. If you have a specific model you are looking at, I can help further. For instance, the Power Inverter 1000 Watts with Three AC Receptacles # WC3720 says continuous power and is a Modified Sine Wave AC Output waveform. Some of the sample applications are even confusing as they are often used as Pure Sine wave applications, but based on the size are adequate. Then the Pure Sine Wave inverter, the Wagan Elite 200 Watt PRO Pure...
    view full answer...
  • Can 12 Volt Batteries of Trailer Power AC Power Outlets
    AC power like what is found in a house is different from DC like the 12 volt battery setup you mentioned. Since you want to convert from DC to AC all you need is the inverter part # WC3720 that you mentioned. It would wire to the battery and then give you three outlets for the appliances you mentioned. I attached a review video for more info on this for you to check out as well.
    view full answer...
  • Should a Relay be Used With Wagan Power Inverter
    Though I can see why you might think you need a relay, I do not recommend using one with the Wagan Power Inverter with Three AC Receptacles # WC3720. This inverter has a simple On/Off switch; I assume you want to use a relay to conserve power from your battery but the same thing can be accomplished simply by turning the relay off. Just be sure to use the correctly rated fuse and wire gauge for the length of wire you need (which is included in the installation manual I've linked) to...
    view full answer...
  • What is Battery Amp Hour Rating Needed to Power 1,500 Watts for an Hour
    In order to determine the length of time that an automotive battery will last when using an inverter pulling 1,500 watts of power, you will need to know the amp hours of the battery that you plan to use. For that much wattage though I can't imagine very long if it's a standard battery. Since 12 watts = 12 volts that means that you'd need a 125 amp hour rated battery to power the blender for one hour. 1,500/12 = 125
    view full answer...
  • 1,000 Watt Inverter Recommendation for Vehicle
    We have a 1,000 watt inverter part number # WC3720 which could potentially work well for you, but it's not really designed for mounting in a vehicle dash. You may have to come up with an extension cord plus an outlet to accomplish that. I attached an install video that shows this installed in a vehicle though for you to check out.
    view full answer...

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Info for this part was:

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