Axial compact fans: The GreenTech EC compact fan range

GreenTech EC compact fan ACi 4400 compact fan

High-performance, compact and efficient

In fan technology today, attention is focussed on maximum energy-efficiency to enable equipment used in ventilation, air-conditioning and refrigeration technology to work as economically as possible. The new generation of fans sets new standards with respect to reliability, service life and energy consumption. The range offer a full integration of drive, fan and converter electronics in the hub of the motor. This full integration can be seen above all in the compact dimensions.

ACi 4400

ACi 4400 with GreenTech EC technology
ACi 4400 with GreenTech EC technology

The ACi 4400 with GreenTech EC technology achieves an air flow of 180 m³/h and a maximum pressure of 74.7 Pa with operating noise of 42 dB(A) and a power consumption of just 4.4 W (65% efficiency of drive motor). It is available off the shelf in a range of speeds versions. The service life is more than 62,500 hours (at 40 °C). Strands or flat plugs that can be configured as necessary and a weight of 250 g makes it suitable for many different applications. Approvals in accordance with VDE 0850, UL, CSA and CCC standards have been obtained. The operating temperature of the fan ranges from -20 to +75 °C. The input voltage of the 230 V (50/60 Hz) version is 195 - 265 V, while the 115 V (50/60 Hz) version operates between 85 and 132 V.


W1G130 with GreenTech EC motor
The W1G130 with GreenTech EC motor

The W1G130 with GreenTech EC motor requires up to 60% lower input capacity than its AC predecessor. For the consumer, that means that a conversion will pay for itself within no more than a year. It is based on the tried and tested ESM motor technology with 2 speed stages, which can be switched according to demand. This enables further energy savings to be made, 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. But the new GreenTech EC fan also has more to offer: With IP54 protection rating and permissible ambient temperature up to +70 °C, it is also eminently suitable for industrial applications. Wall ring and impeller are 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 keep noise development low.

The axial fans with GreenTech EC technology are mechanically fully compatible with their AC predecessors, which makes it just as easy to perform a conversion as it is to incorporate them into a new installation. With their compact dimensions and great efficiency they are employed above all for control cabinet cooling and in other cooling applications such as bottle coolers and refrigeration appliances.