- Thread starter taycat
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or consider an inverter thing, 240 to three phase, depends if the motor will do star and delta wiring without having to go inside to find the points, 240 - 3phase is cheaper than 415 - 3 phase, if you go down the 240 single phase new motor road consider upping the HP of the motor, 240 doenst have the oooomph of 415, if you went with an inverter its there to power other 3 phase machines for future purchases.
stan
stan
brightspark
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the horsepower on a single phase motor up to 5hp is no less powerfull than a 3 phase equivelant . 3 phase has a lot stronger starting torque than a single and are smaller in size and smoother running and cheaper to buy
Sidewinder
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All "normal" asynchronous squirrel cage 3ph motors can run star or delta, whether this can be changed in the terminal box is another matter! 
You also need to be sure you give them the right voltage though depending on the wiring configuration.
You also need to be sure you give them the right voltage though depending on the wiring configuration.
the snooper
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All "normal" asynchronous squirrel cage 3ph motors can run star or delta, whether this can be changed in the terminal box is another matter!
You also need to be sure you give them the right voltage though depending on the wiring configuration.
he stated the motor is burnt out 
Sidewinder
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So, it can still be run in Y or D, once it's rewound!
Not an issue really...
Plus, if you know which you want before it's repaired, job sorted, it can be configured the way you want it.
Mind, I can't see where it says it is burned out.
Mine was a single phase and it worked every time. Just too slow for me .
So fitting a single phase is fine just might need a new switch etc.
brightspark
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post 7 says its burnt out and there not worth rewinding unless its something special that cant be obtained at a reasonable priceSo, it can still be run in Y or D, once it's rewound!
Not an issue really...
Plus, if you know which you want before it's repaired, job sorted, it can be configured the way you want it.
Mind, I can't see where it says it is burned out.
the snooper
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cheaper to buy a used motor
Sidewinder
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Missed that! Oops.
Most small asynchronous motors are not worth rewinding, as you say unless they are specials these days.
Mind, you need to be careful, if you are giving warranties as there are some pretty dire cheap motors out there these days.
I only fit two brands of cheap motor to customers equipment, both have very good support in the event of issues, else I go for good known names such as Siemens, (there are others), too risky to fit used or unknown parts when your reputation is at risk IMHO.
Different if it's your own equipment, or for DIY use.
Wendelspanswick
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Not really, 3 phase motors are self starting as the phases are offset whereas a single phase motor would need a starting mechanism.
Plus have you seen the cost of a rewind, its normally cheaper to scrap the old and buy new unless the motor design is unusual.
