ECN Forum Forums General Topics of the Trade General Discussion Area Motors and Motor Starters, Heaters

" Can you wire a motor without the heaters?
I don't wire motors to often and I'm doing one for a three phase air compressor"

Why would you not use heaters??? The starter (contactor & overload block w/ heaters) are very inexpensive, compared to the price of replacing the motor.

The fuses protect the cable & the heaters protect the motor (overcurrent & from single phasing)

For an application with a compressor, I would recommend a NEMA starter, I prefer the Furnas (Siemens) Class 14 starters with the ESP electronic overload.. as when it comes to compressors, they tend to cycle quite a bit and I would not trust the IEC starters as they need to be oversized

[This message has been edited by distributor x (edited 03-20-2006).]