First efficiency level will be launched in summer 2011

Lenze drive solutions are already economical today



A lower energy consumption brings about lower operating expenses: On 16 June 2011 the first level of the ErP directive 2009/125/EC will be launched. Then the subject of energy efficiency in the field of electrical drive technology, apart from a business mark, will also receive a legal mark which will be binding on a Europe-wide scale. In order to convert electricity to motion as efficiently as possible, the drive and automation specialist Lenze, however, not only looks at the motors, but carefully examines complete drive trains of an application.


IE2 for powers of 0.75 to 375 kW for two, four, and six-pole three-phase AC motors – and this without transition periods: With the amended version of the European Eco-design Directive, the energy efficiency class IE2 in accordance with IEC 60034-30 will be obligatory in summer 2011. In the case of the new Lenze MH L-force three-phase AC motors, the higher efficiency does not entail undesired steps in size, as is often usual. The specialist for drive and automation technology has succeeded in avoiding those to a large extent, in order to, like this, simplify the migration to IE2. Hence, also retooling – for instance during a retrofit – can be carried out more easily.


However, an efficiency-optimised component on its own, from the view of saving does not yet make an efficient drive train. Therefore, as system provider, Lenze offers the new IE2 motors with highly efficient axial and right-angle gearboxes within the L-force drive and automation platform.


Like this the use of a geared L-force motor, consisting of an IE2 three-phase AC motor and a GKR bevel gearbox, can reduce the energy demand by approximately 41 percent compared to a standard solution with a worm gearbox and an IE1 three-phase AC motor. Another advantage is this: the high efficiency reduces the heat loss and thus prolongs the service life of the components, including longer maintenance intervals and, by this, an increasing availability.