New motor efficiency classification IE2
With the aim to reduce world-wide energy consumption, the International Electrotechnical Commission (IEC) has developed and published a new standard, IEC 60034-30:2008.
This new worldwide standard defines efficiency classes of low voltage three phase motors for 50/60Hz supply with motor powers between 0,75 and 375 kW.
In the EEA (European Economic Area) this standard was the base for the guideline 2009/640/EU, which defines minimum efficiencies for motors being sold, installed and operated in this area.
Since 16.6.2011 the minimum efficiency class for those motors is IE2. Those motors combine the benefits of a higher efficiency with a longer lifetime.
This guideline has had an influence on the Systemair product range. All three phase IEC motors, used for example in Multibox MUB, roof fans DVN, axial fans AXC and other Systemair products, covered by the EU guideline have been replaced by high efficient IE2 motors.
IE2 motors cannot be speed controlled by voltage, i.e. by transformers.
Systemair is offering a newly developed range of frequency inverters, FRQ, to fill this gap, offering a real plug and play solution – no need for time consuming configuration at site, and when choosing the FRQ-S models, no need to install expensive shielded cable.
Another excellent alternative to IE2 high efficiency motors are Systemair fans with EC-motors, offering up to 50% energy saving. All EC fans are fully speed controllable by a simple 0-10V signal.
The following Systemair fans now have an IE2 motor and new item numbers, see link below: