Siemens Releases New SIMOTICS SD661 Severe Duty Motor
Melissa Larson | October 9, 2014
Siemens has rolled out a new SIMOTICS SD661 severe duty motor. According to the company, these units are ideal for use in the petrochemical, energy and similar industries and for specialized use in air-cooled heat-exchanger applications.
The NEMA Premium SD661 provides benefits such as mounting flexibility and application on adjustable speed drives for even more energy savings, lowering its lifetime total cost of operation.Its full cast iron construction, corrosion-resistant hardware, bearing isolators on both ends, IP56 ingress protection and T-drains at the lowest point on both ends provide a high degree of mechanical integrity and long service life in harsh industrial environments.
The new motor is suitable for horizontal, shaft up or shaft down mounting and is equipped with oversized roller bearings for belted applications. In addition, the SD661 features an oversized and 90º rotatable cast iron conduit box, dual drill foot mounting holes and automatic grease relief fittings.
SD661 severe duty TEFC motors are available in 5-75HP range (frame sizes 184T-365T). Its design meets or exceeds the IEEE Std, 841™-2009 standard for high performance, including features like Inpro/Seal VBXX bearing isolators on the DE and ODE, 0.06 IPS vibration / 0.005” foot flatness and twice line frequency vibration limits.
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