[bwayne]

NEW ELECTRICAL ENGINEER.
I've seen many different comments on several different sites about wiring a single phase motor to a three phase starter. Now everyone has me confused. I have 120V single phase power supplying my system. I have a 120V single phase motor and a 120V three phase starter. I also have a momentary pushbutton. As long as the button is pressed, the motor will run. Now through all the comments, i've become unsure of my self about wiring this up. I was under the impression that I could connect my supply to L1 & L3, then jumper out of T3 to L2. Then jumper from L1 to one side of my mom pushbutton, then the otherside to A1, then from A2 to my L3. I have 1 NO and 1 NC on my overloads. I'm unsure how to tie this into the system. Any assistance will be appreciated.

 

[JHFWIC]

Buy a single phase stater and hire an electrician to wire it for you.

 

[dthurmond]

You need to parrallel your start button wiring with the N/O contact on the motor contactor .

 

[bwayne]

Buy a single phase stater and hire an electrician to wire it for you.

Great idea, thank you for your miraculous brainpower

 

[beardie]

Have you got stop button
What's your coil voltage and is your overload correct size can you draw wiring diagrams
If so put it on line

 

[big2bird]

Great idea, thank you for your miraculous brainpower

Electrical engineer? :laughing:

 

[wildleg]

NEW ELECTRICAL ENGINEER.
I've seen many different comments on several different sites about wiring a single phase motor to a three phase starter. Now everyone has me confused. I have 120V single phase power supplying my system. I have a 120V single phase motor and a 120V three phase starter. I also have a momentary pushbutton. As long as the button is pressed, the motor will run. Now through all the comments, i've become unsure of my self about wiring this up. I was under the impression that I could connect my supply to L1 & L3, then jumper out of T3 to L2. Then jumper from L1 to one side of my mom pushbutton, then the otherside to A1, then from A2 to my L3. I have 1 NO and 1 NC on my overloads. I'm unsure how to tie this into the system. Any assistance will be appreciated.

if you really are an electrical engineer, or even a 2nd year student, figure out what the voltage is from L1 to L3 and compare it to your motor's label.

(call an electrician to wire it for you is actually a helpful response, by the way)

 

[beardie]

The nc contact on overload is in series with your start button
But a 3ph overload will only work with single phase if the load is looped through all three contacts in series
Can you certify your work
As in nz u would need to be registered electrician and fill in a code of compliance form

 

[erics37]

Tie the microwave into the stove circuit. The stove circuit is 240 volts. That is what you need to operate your microwave correctly. I bet that your hot dogs are taking too long to cook in the microwave, aren't they.

Problem solved, next question please!

 

[erics37]

(It's been a while since anyone has busted that one out) :laughing:

 

[pudge565]

But a 3ph overload will only work with single phase if the load is looped through all three contacts in series

Only if it is electronic, NEMA starters with heaters couldn't care less.

 

[SteveBayshore]

The nc contact on overload is in series with your start button

Not up north of the equator. Our NC contact on the overloads is normally in series with the common or the neutral to the coil. :thumbsup:

 

[JHFWIC]

Great idea, thank you for your miraculous brainpower

All I was saying is you don't know what you are doing hire someone that does!

 

[EB Electric]

You don't "tie the system." You are an engineer! You are not an electrician or apprentice, you are not qualified to do the job. I am a first period apprentice....this is incredibly basic stuff that was taught in the first few months of schooling. If you need to look for guidance on this, I hope your engineering degree, if it really exists, is shredded!

What on earth is with all of the jumpering? As said above, motor starter coil N.O. goes in parallel across start button for seal in, to the coil, through N.C. on your overloads to neutral. Likely you have a start/stop station, regardless you need a stop in there to stop your motor. But hey, you are using a 3 phase starter on a single phase motor, so go to town, you're the professional engineer. Please don't hurt yourself or anyone else.

 

[Speedy Petey]

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