Motor must be wired through a starter?

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flanajb

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I am looking at buying a 240V motor so that I can build a vibrating table. Plan is to put an offset weight onto the pulley and use a 0.3KW 2 pole motor

Machine mart do a 2 pole 1Hp motor for ~ £70, but it stipulates the following, and I would appreciate if anyone can tell me what this actually means and why?

It states "It is a condition of our warranty that motors must be wired through a starter with full overload protection"
 
The requirement is for the control switch such as the NVR unit to have a current limiting factor built in, either a simple thermal Circuit breaker or electronic equivalent to prevent excessive current in the motor windings if it does not start up to running speed in a respectable time or is stalled due to mechanical overload for some reason.

This sort of switch with current overload control
 
It sounds to me that there is no overload protection on the motor so to prevent burn out of the motor due to trying to start the motor with too high a load on the motor spindle overload protection is required in the switch. All you need is a DOL starter with overload protection from somewhere like Toolstation.

If you look at Bob 9 fingers web page he explains all about motors.

http://homepage.ntlworld.com/bob.minchi ... Issue2.pdf
 
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