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Only 330 working days left until changeover to high-efficiency motors

From June 16, 2011 machine builders are only permitted to use high-efficiency motors with a minimum efficiency class of IE2. The new EU Directive 2005/32/EC is applicable to low-voltage asynchronous motors of 0.75 to 375 kW. Due to the lower power consumption, carbon-dioxide emissions and operating costs are reduced. Siemens supplies all the motor series that are affected by this legislation and can provide support with changeover.

From June 16, 2011, in accordance with EU Directive 2005/32/EC, only high-efficiency 2 to 6-pole three-phase asynchronous motors will be permitted on the European market.

They must at least comply with efficiency class IE2 (IE=International Efficiency) which corresponds to the currently highest European efficiency class EFF1. The efficiency of high-efficiency motors can be up to seven percent higher than that of standard motors, which means that less current is drawn for the same output. Drive systems consume more than two-thirds of industrial energy, so this will reduce carbon-dioxide emissions.

At the same time the operating costs are reduced for the user, such that the additional costs for the higher efficiency are paid back in a short time. The operator can therefore save around 100 Euros in energy costs by implementing a 4-pole 2.2 kW motor of efficiency class IE2 instead of an IE1 motor. In continuous duty, at a rate of eight cents per kilowatt-hour, the additional costs are paid back in a year. Replacement is easy due to the identical housing dimensions of IE1 and IE2 motors.

The Siemens Drive Technologies Division supplies all the motor series that are affected by the new legislation and has short delivery times for standard catalog motors. The user is also supported with documentation, such as data sheets, and online tools such as the DT Configurator or the Sinasave energy-saving tool.

The Siemens Industry Sector (Erlangen, Germany) is the worldwide leading supplier of environmentally friendly production, transportation, building and lighting technologies. With integrated automation technologies and comprehensive industry-specific solutions, Siemens increases the productivity, efficiency and flexibility of its customers in the fields of industry and infrastructure. The Sector consists of six divisions: Building Technologies, Drive Technologies, Industry Automation, Industry Solutions, Mobility and Osram. With around 207,000 employees worldwide (September 30), Siemens Industry achieved in fiscal year 2009 total sales of approximately €35 billion.

The Siemens Drive Technologies Division (Nuremberg, Germany) is the world's leading supplier of products and services for production machinery and machine tools. This includes standard products but also encompasses industry-specific control and drive solutions. Integrated technologies along the entire drive train with electrical and mechanical components offer highest potential to reduce energy consumption in industrial plants. The services provided by the Division include mechatronics support in addition to online services for web-based fault management and preventive maintenance. With around 36,000 employees worldwide (September 30), Siemens Drive Technologies achieved total sales of €7.5 billion in fiscal year 2009.

Reference Number: IDT2010032318e

Julia Kauppert | Siemens Industry
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