New From Siemens:

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Siemens Energy & Automation has introduced three new lines of AC motors which will meet or exceed current NEMA (National Electrical Manufacturers Association) efficiency standards. These new motors are available from IBT.

Offered in both aluminum and cast iron frames, these new Siemens motors include high efficiency and industry-leading NEMA Premium® efficient designs. These efficiency increases will help motor users lower energy costs and extend service life. A unique die cast copper rotor and special stator design provides added efficiency to these motors.

The three new product lines include general purpose die cast aluminum, general purpose cast iron, and severe duty cast iron frame motors for use in a wide variety of industrial applications.

Siemens die cast aluminum frame motors have been developed with removable feet to provide a high degree of mounting flexibility for general purpose applications such as air handling, conveyors, pumps, and compressors. Cast iron frame motors are available for general purpose and severe duty applications. A definite purpose version, exceeding the demanding requirements of IEEE standard 841, also is available for durability and energy efficiency in critical petroleum, chemical, and paper processing environments.

"We are impressed with Siemens' commitment to the latest technology for creating superior motor performance that will lower operating costs," says IBT's Jim Ryan. "Their investment in efficiency, new features, functionality, operating efficiency, and service life will definitely help our customers."

All three lines of Siemens motors are available in either high efficiency or NEMA Premium "ultra" efficient designs, offering efficiencies up to 10 percent better than NEMA Premium standards, to help users significantly reduce facility energy costs. For example, a five percent efficiency gain over a 20 horsepower motor's normal life can yield $12,500 in energy savings. With tens to hundreds of motors in a single plant, the savings realized through added motor efficiency can have a significant impact on a company's profitability.

Siemens engineers started with a clean sheet of paper when designing these motors and used decades of motor design experience backed by the latest computer-aided design tools to engineer a line of motors like no other. It is a line of motors that offers the ultimate in rugged construction, cool operation, high performance and application flexibility.

The new motors offer unique benefits through:
• Industry-leading die cast copper rotor technology, resulting in best-in-class efficiencies and lower total cost of ownership
• A combination of specially designed cooling fins, polypropylene fan and internal cooling scheme minimizes heat build-up within the motor for longer life
• Highly refined rotating assembly that incorporates anti-friction bearings, polyurea-based grease, dynamically balanced rotor and precision-machined mating surfaces for reduced vibration
• Specially designed insulation system that meets NEMA Class F standards with a Class B temperature rise @ 1.0 service factor for long service life and meets NEMA standard MG 1-2003, Part 31 standards for compatibility with variable-speed drive operation
• Exclusive bolt-on foot design for general purpose aluminum frame motors permits rapid change to NEMA mounting positions F-1, F-2, and F-3 allowing a high degree of mounting flexibility

The new lines of motors are available up to 20 horsepower, and future plans include expanding the die cast aluminum motor line to 30 horsepower. The cast iron frame motor line will be increased to 400 horsepower over the upcoming months, and definite purpose designs will be added such as UL® listed explosion-proof motors.

To find out more about Siemens new products and how IBT can help you use them to save energy, contact Jim Ryan.