Kube 4000 (110v AC Plug-In) Energizer

It's proven, over the past 5 years, to offer reliability and excellent value.

The Kube 4000 plug-in unit is economic and wide-impedance. That means it produces unusually high pulse outputs in fences over dry soils. It performs better than standard low-impedance units during dry/snowy seasons and on fences for deer, poultry and goats.

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115110 Kube 4000 (110v AC Plug-In) Energizer In Stock 4.20 $148.00

Kube Operating Inst [452 KB]
Installation & Warranty [178 KB]
Energizer FAQs [268 KB]
Impedance-Wide vs Low [314 KB]

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Common Uses

A 110v electric fence energizer used for medium length fences. It will keep in cattle, sheep, goats, horses, poultry and guard dogs. Effective at protecting against coyotes, stray dogs, bear and fox. It also works to keep deer, raccoons and rabbits out of garden/orchard areas.



  • 3 stored joules
  • 2.3 released joules
  • 1.9 output joules in moist soils
  • 1.24 output joules in dry soils


  • Requires 6 ft. of ground rod in the ground
  • 4.5 watts drawn per hour
  • 48 pulses per minute
  • 6' cord
  • 2 prong plug
  • Simple. No fancy "bells and whistles."
  • Modular. Very easy to repair.

Should Power...

  • 3 miles of 3 strand cattle fence
  • 1 mile of 5-7 strand sheep fence.
  • 15 164' sheep/goat nets and 7 164' PoultryNets.
  • All distances are dependent on amount of grass/weed load on the fence.


Wide-impedance units perform better over a wider range of fence conditions and conductors than standard low-impedance units. Areas where wide-impedance units excel are: high resistance conductors (stainless steel polywire/hot tape/electrified netting); minimal ground rods; livestock or wildlife with dry skin or hair (poultry, deer, goats); and very dry soils. Safe to use with all polywire, polyrope, tape and electrified netting.


The Kube 4000 can be mounted either inside or outside of a building, but not where there is risk of fire. The energizer must be mounted vertically. Protect the energizer from direct rainfall.

  1. Connect insulated cable (stripped back 1 - 2" on ends) to the fence terminal on energizer, run the cable to the fence line and connect.
  2. Then run a second length of cable from the ground terminal (with ends stripped again) on the energizer to the ground rod.
  3. Secure to ground rod with a clamp.
  4. Plug into outlet and test fence. Unit indicator light should flash and a tic-tac sound will be heard. If the indicator light doesn't flash, then the unit should be serviced.


Make sure the energizer is unplugged before working on the fence or the energizer.


To determine if the fault is with the fence or the energizer...

  1. Test the energizer first
  2. Turn off energizer.
  3. Disconnect ground wire and the fence wire.
  4. Turn energizer back on.
  5. With fence tester, put the ground probe (or clamp) to the ground terminal on the energizer and the metal loop (or positive clamp) at the top of the tester to the fence/positive terminal. The reading you get tells you how well the energizer is working without any other variables. If there is a very low voltage (under 4000v) or no voltage, then the energizer may have a problem. If the voltage is high (greater than 4000v) then the trouble lies with your fence. Most energizers put out between 5000v and 8000v when there is no load (i.e. no fence hooked up).
If the energizer is faulty and it is a 110 volt plug-in unit ...
  1. Check that the 110v outlet is "live" by using a plug-in drill or test light.
  2. If the test light works and the energizer does not, call Premier.

If the fence is at fault, then you must find the fault(s) and fix them. Here's how to start this process:
If you have a Fault Finder you can simply touch the fence with the Fault Finder at various points along the electric fence(s). The Fault Finder will tell you at each point which direction to go in to locate the problem. Move in that direction testing as you go and you will arrive at the problem.

If you lack a Fault Finder…

  1. Walk or drive along the fence looking for any point in which the energized wires touch the soil, a steel post or a steel wire. On HT wire fences, check the wires at braces to see if they are touching a hot wire. On netting, look for a hot wire touching the metal stake at the bottom of the plastic posts. Also look for damaged insulators.
  2. If the fence can be separated into several parts (by switches or by disconnecting parts of it), you can locate the problem by beginning at the far end and then progressively turn off or disconnect the sections of fence. When the voltage on the remaining fence rises sharply, you've located the section(s) that's causing the problems.
  3. The alternative to (2.) is to begin at the fencer and progressively turn on sections of the fence. When the voltage suddenly drops you can assume that the problem is in the section most recently connected.


Our Unique 2-Year Warranty: If an energizer fails within 2 years from the purchase, Premier will replace the module/unit at our cost (unless the reason for its failure is customer abuse or neglect). Your credit card will be charged for the replacement but you will receive full credit when the failed item is back at Premier. Your only cost is shipping the failed item to us. If the original energizer is over 2 years old, we will repair and/or replace it, but you pay for the repair cost and freight.

Listed below are recommended optional components or related items. Your particular situation may require alternative recommendations. Please call and talk to our consultants if there are any questions at 800-282-6631.
Item # 134100 - In Stock
Device to indicate the approximate voltage on your electric fence.
Item # 151000 - In Stock
Ground rods are essential for energizers to work.
Item # 151800 - In Stock
Use clamp to attach insulated wire to ground rods (see accessories tab below.)
Average Rating: 4.8 out of 5
Number of Reviews: 16 customers reviewed this product.

Write a Review

Date: October 23, 2015
Linda B
Would you recommend this product? Yes
Great product and so easy to install! Works great to keep my dogs out and the chickens in.
Date: October 14, 2015
Sharon K
Would you recommend this product? Yes
Easy to install. Working fine so far. Arrived very quickly. I expect it to work as well as the other products I have purchased from Premier. Using it on a four stand Electro-braid horse fence.
Date: September 1, 2015
Heather M
Would you recommend this product? Yes
Installled in August and working well.
Date: July 28, 2015
Clifford G
Would you recommend this product? Yes
This Kube 4000 replaces the Kube 3000,that I
had almost 8 years.If it duplicates the 3000,
I will be happy!
Date: June 21, 2015
Angela B
Would you recommend this product? Yes
I bought the Kube 4000 to replace an energizer that finally gave up it's ghost after several years. It was very easy to install since ground rods were already in place. I use it for the poultry netting (also from Premier) and it was hot enough to deter any ground predator. It also arrived very timely. So far I've had no issues with the Kube 4000 and I'm very satisfied with how it is doing the job. I chose the wide impedance energizer because it should handle both tall grasses and dry soil.
Date: June 16, 2015
Billy B from Central Illinois
Would you recommend this product? Yes
I have been very pleased with the Kube 4000 Energizer. It has performed exceptionally well. I added a standard surge protector, and now have an On/Off switch for when the kids are playing near it.
Date: June 16, 2015
Kim D from Arkansas
Would you recommend this product? Yes
Best charger for the money.
Date: April 25, 2015
Rita B from Louisiana
Would you recommend this product? Yes
Best service and products ever! I never do product reviews but this company is superior with their products and services!
Date: February 12, 2015
Ronald W from alabama
Would you recommend this product? Yes
Found that this charger got the job done.
Date: January 5, 2015
Thomas C from New York
Would you recommend this product? Yes
Very high quality. It does exactly what it attests to doing. Premier 1's documentation and information was also superb. It enabled me to make the best product decision, and the product I received works exactly as I expected. Great value for money.
Date: August 19, 2013
George N B from Maryland Eastern Shore
Would you recommend this product? Yes
Easy to setup and works great. I drove one 8 foot ground rod and connected (2) ElectroStop® 10/42/12 fences to it. Purchased for goats.
Date: July 27, 2013
Katrina B from Owosso Mi
Would you recommend this product? Yes
works great ! I grounded it and ran the coated wire out to the fence and it was way up to a 6 on my fence tester -- I guess that is pretty good - I hope the horses can hear it as I have a horse is fearless but I haven't seen any thing - works for the sheep too -- who I really bought it for..
Date: May 27, 2013
Leslie G from Washington
Would you recommend this product? Yes
I am new to raising goats and started just 2 years ago. A neighbor told me when the thought of raising goats was still in discussion stage, that if you can pour water through a fence, a goat can get out of it. That comment led to more studies and my introduction to Premier 1. I have a Kube, wide-impedance, electric fence charger and my goats do not get out or rub on fences. Unless, I forget to latch the gate. I tell anyone that will listen about all the things I have learned from the staff at Premier 1. Because you see,their products are only part of what make them a great company, the other part is the wisdom they so freely share. Thanks Premier 1.
Date: September 19, 2012
Duncan M from Maine
Would you recommend this product? Yes
Some years ago I bought a Hotshock 600 to replace a 20+ year old Premier energizer(925 I think). The Hotshock 600 wasn't quite enough so I bought the Kube 4000 planning to split our fences. It turns out the Kube unit is plenty by itself. Day in day out it is a stronger energizer than the Hotshock 600 and has got to be the best value in an energizer anywhere.
Date: September 15, 2012
Susan L from Eastern New York/Western Connecticut
Would you recommend this product? Yes
As soon as we plugged the Kube in, the voltage on the Premier 1 fence was at 6000! Now I am confident my hens will not have any predators trying to get into their safe zone. Had used other named product before, but I was not as confident as this one. I now feel comfortable moving them out into the cow pasture to rotate around in their movable coop after the cows have been there. Will be buying 2 more in the next few months!!!
Date: May 29, 2012
Paige S from Arizona
Would you recommend this product? Yes
In fairness to the product, there is no 'problem' with it. HOWEVER, I do wish that someone had told me how many extras I would be needing to purchase/do in order to get my fence working at a voltage to keep coyotes out do to Arizona conditions. I am giving it one star for the extra time and money I spent (am spending daily in water)to make it work. The dryness of Arizona soil meant running more grounding wires, live strands, and a soaker hose around the hole perimeter in order to get the voltage I needed to ward off coyotes. Aside from the original purchase of the fence and energizer, I probably spent an additional $250 to make the fence work properly. Oh, and there was NO WAY I was sinking a grounding rod into my ground 3 feet down. I ended up painstakingly pounding two 1.5' rods in and running drip lines to them. Lots of more water usage to make this product work than I would have thought. This all said, however, it does seem to be putting enough juice out now. So again, the low star rating is due to my location/dry soil issues.
Date: March 4, 2012
Edwin D from Idaho, high mountain desert.
Would you recommend this product? Yes
We have very dry rocky conditions with dry snow. Since the KUBE 4000 came to our aid there has been a lot less worry about bucks crossing into the doe pens.
Dixsigns Romping Rock Dairy
Date: April 15, 2011
Carrie C from Yuma,AZ
Would you recommend this product? Yes
Great with the POS/NEG PermaNet for our dry rocky soil. Packs a punch! Highly recommend!
Date: February 11, 2010
Brody K
Would you recommend this product? Yes
This energizer is easy to install and use. It has successfully contained free range chickens and guinea fowl. Even more important it has protected all of them from preditors, I have not lost one bird since I got Premier's fence and the Kube.
Date: February 8, 2010
Nina R
Would you recommend this product? Yes
Great very easy to use and very easy to install. I have been using mine outside and it is very reliable