Increasing energy costs have resulted in greater emphasis on the power consumption of drive systems. It is extremely important to utilize the full potential for minimization here to secure competitiveness today and in the future. This is the reason that already today, Siemens is developing a new generation of low-voltage motors. Innovative copper rotors create the best requisites for motors with high efficiencies. The new motors for EFF1 (High Efficiency) offer considerable energy savings and protect our environment. The table shows an overview of the technical features of these motors. The presently available product range with ordering data, technical data and detailed explanations are provided in the new Catalog News D 81.1 N “Low-Voltage Motors – IEC Squirrel-Cage Motors – New Generation 1LE1 – Frame Size 100 to 160” and on the Internet under:
http://www.siemens.com/motors
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EC Squirrel-Cage Motors – new generation 1LE1 |
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Versions |
Self-cooled energy-saving motors with:
Self-cooled motors with increased output and:
Forced-air-cooled motors without external fan and fan cover with:
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Rated power |
0.75 ... 22 kW |
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Frame sizes |
100 L … 160 L |
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Type of construction |
Without flange: With flange: With standard flange: |
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Speed |
750 ... 3000 rpm |
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Rated torque |
9.9 ... 150 Nm |
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Rated voltages |
All commonly used voltages |
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Designation |
EU/CEMEP efficiency classification: EFF1: 2-, 4-pole, EFF2: 2-, 4-pole US Energy Policy Act EPACT: 2-, 4-, 6-pole (available soon) |
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Degree of protection |
IP55 as standard |
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Housing |
Aluminum |
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Cooling type |
Self-cooled: Frame size 100 L … 160 L (IC 411), Forced-air cooled: Frame size 100 L … 160 L (IC 416) |
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Temperature class |
Temperature class 155 (F), utilized to temperature class 130 (B) |
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Approvals |
CE |
Examples, IEC squirrel-cage motors – new generation 1LE1, aluminum housing