ECM (Electronically Commutated Motor) - who sells them, how

[Some Guy]

Who sells ECM motors (1/4, 1/3 or 1/2 hp) and how much do they cost -
(over-the-counter) ?

Unless I'm wrong, they seem to only be available as integrated into
HVAC systems (furnaces) and maybe only to HVAC
installers/contractors.

Are they sold to the general public- perhaps to those wanting to
replace their existing AC fan motors?

Bonus question:

Do ECM motors radiate EM/RF noise, or back-feed noise into the house
wiring?

 

[Salmon Egg]

On 12/21/07 6:27 AM, in article 476BCD45.D1DEAAD6@Guy.net, "Some Guy"
<Some@Guy.net> wrote:

Who sells ECM motors (1/4, 1/3 or 1/2 hp) and how much do they cost -

How does an ECM differ from what is called a brushless dc motor?

Bill

 

[Jamie]

Some Guy wrote:

Who sells ECM motors (1/4, 1/3 or 1/2 hp) and how much do they cost -
(over-the-counter) ?

Unless I'm wrong, they seem to only be available as integrated into
HVAC systems (furnaces) and maybe only to HVAC
installers/contractors.

Are they sold to the general public- perhaps to those wanting to
replace their existing AC fan motors?

Bonus question:

Do ECM motors radiate EM/RF noise, or back-feed noise into the house
wiring?
Hmm.

Other wise know as a DC brushless or AC motor?

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