-40%
New 7.5 hp or 5hp Static Phase Converter Panel Box NEMA Enclosure in Los Angeles
$ 68.63
- Description
- Size Guide
Description
Please message me it you would like it shippedI will list a auction with shipping if my converter will run your machine
I want to be sure the converter will start and run your machine before I ship the converter
This auction is for a static phase converter in a NEMA enclosure.
It will start and run a 5hp or a 7.5hp three phase motor by adding or removing a jumper wire.
If you use this converter panel to start a 5 hp or a 7.5 hp 3-phase idler motor you will have a rotary converter.
If you are near downtown Los Angeles you may pick up the converter for free.
I will connect the converter to 220 single phase power for you to see the converter work before we complete our transaction.
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The most common mistake when buying a converter is buying one that is too small or the wrong type, a static when you need a rotary.
You should contact the company that made your machine to confirm what size converter you will need to run your machine.
If you are not able to contact the manufacture message me the horsepower of the motor in your machine and the type of machine you want to run.
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When I first heard about three-phase power no one could give me a simple explanation. One of the answers was so complicated it might has well been in a different language.
When I first asked about phase converters, a good friend who owned a small cabinet shop told me "don't get one, they don't work".
I asked these questions many years ago long and by now you would think by now someone would have posted a "simple" explanation.
Please note my simple explanation may be criticized for not being technically correct.
I am not offering a text book answer, rather a simple explanation that will give you a basic understanding to decide if you need and can use a phase converter.
Three phase power is basically three 110 volt lines. This is a good time to also mention that 220 volt single phase is two 110 volt lines and while we are at it, 110 volt single phase is one 110 volt line.
Second, a phase converter does not convert anything! At the most basic level a static converter is a three phase motor starter, all it does is start a three phase motor on single phase power.
Third, I will put a target on my back by calling the idler motor in a rotary converter a generator. It is not actually a generator but it acts like one, again the best simple explanation I can offer is, it is a transformer that shifts or induces 110 volts for the third leg of three phase power.
Now a little more detail, I call a static converter a motor starter because that is exactly what it does, it starts a three phase motor and after it starts the three phase motor runs on two of the 110 volt lines.
When you start a three phase motor this with a static converter you will have about half to two thirds of its rated horsepower, this is because one of the three sets of coils in the motor that would with three phase power generate torque is not powered.
A drill press or a small table saw will work fine with a static converter but remember if you want full power you will need a rotary converter.
If you have gotten this far I realize my simple explanation may have actually confused you and let me confuse you more.
A rotary converter is not named for the amount of power it will produce rather it is named for the horsepower rating of the idler motor.
Saying it in real world terms a 5 hp rotary converter will generate only enough amps to run a three horsepower motor at full power.
This holds true whatever the size of the idler motor, a 10hp converter will give you a little more than 6 hp in power, a 15 hp converter will give you about 10hp in power and so on.
More confusion, the bigger the idler motor the less efficient it is.
Lets assume a 7.5 hp idler will lose about one third of its rated horsepower. That logic is not constant, a 30hp converter may lose half of its rated horsepower.
This is one of the reasons that everyone that sells converters always recommend converters that are larger than the motor you wan to run.
In closing the two most important things for you to think about before you buy a phase converter is, do you need a static or a rotary and the horsepower of the converter.
This is probably why my friend that said "don't get a converter, they don't work", he bought a converter that was too small and it "didn't work".
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Everyone that builds phase converters cannot change the laws of physic that make converters work.
There are manufactures that sell very nice deluxe converters that have custom cabinets and extra features that unfortunately make them very expensive.
If you can use the features they are well worth the what they are selling them for.
I am on the other end of the scale, I sell a basic converter that will start and run a 5hp or a 7.5hp three phase motor.
If you use this static converter with a 5hp or 7.5hp, 17xx or 34xx RPM three phase motor you will have a rotary converter.
Not sure of what you need? message me and I will reply by the next business day.
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If you are reading this sentence you must need a phase converter and realize firguring out what to buy is hard.
I will try to help by recommending what I think are the best phase converters.
If you do not need balanced voltages and want a easy to install converter and have a three phase motor 7.5hp or smaller I think the static Phase a Matic is the best choice.
If you need a rotary converter I have worked on North American Converters and America Rotary Converters and I think they are both excellent.
There are lot of other manufactures but because I do not have personal experience with them I cannot recommend them.