How does Electronic Commutation (EC) compare to conventional technologies? What are the defining traits of an EC fan? Here are the answers:
When is a fan considered EC?
An EC fan features INTEGRATED electronics
The EC motor comprises of an integrated system. It contains (a) Conversion Electronics, (b) Speed Control Electronics, (c) Stator and (d) DC rotor.
“If a fan is sold as a complete assembly, efficiency [..] shall be assessed by direct measurement of Pe / Ped and Pu “
Systems that feature individual components are NOT EC
“ISO standard committee understands that components bought individually are NOT capable of running in peak rated efficiency (ALL of them at the same time).”