Fan technology nowadays is focused on maximum efficiency to enable devices used in ventilation, air conditioning and refrigeration technology to work as energy efficiently as possible.
Against this background, there is no alternative to electronically commutated (EC) fans, which work with much lower power losses compared to alternate current (AC) variants, still used a lot today.
Germany’s Ebm-papst has released the I-maxx W1G130, a compact axial fan with a Green Tech EC motor that is mechanically compatible with its AC predecessors and is used primarily in applications for control cabinet cooling or in other cooling applications such as bottle coolers or refrigeration furniture.
It needs up to 60 per cent less input capacity than its AC predecessor (see figure 2).
For the consumer, that means that the changeover will have paid for itself within a year.
The I-maxx W1G130 is based on Ebm’s ESM motor technology with two speed stages able to be switched according to requirements. This enables further energy savings, increasing the overall efficiency of the application even further. The two programmed speed stages have been selected to cover the air performance of the two earlier AC predecessors, representing a further benefit for the customer.
The Green Tech EC fan offers a protection rating of IP54 and reliable ambient temperatures up to 70°C. It is suited to industrial applications with its wall ring and impeller made of resilient, fiberglass reinforced plastic, making additional corrosion protection unnecessary. The plastic material provides for a low weight.
Aerodynamic optimisation measures on the impeller have kept noise development low.