Reliability and efficiency in the toughest situations
SIMOTICS NEMA low voltage severe duty motors
Siemens severe duty motors operate reliably to drive demanding applications in the toughest environments. These all cast iron motors are available with many standard and QuikMOD options to suit many application. These motors meet or exceed NEMA MG1 Table 12-12 (NEMA Premium®) efficiency standards. The SD100 IEE841 and the SD661 are designed, manufactured and tested to the strictest of industrial standards, including IEEE 841. Additionally, the SD661 fulfills all the requirements of API 661, so they are ideally suited for petrochemical, oil and gas applications.
Technical overview of SD NEMA motors
SIMOTICS NEMA SD100 severe duty motors – rugged and efficient operating performance
The SIMOTICS SD100 severe duty motors are designed and built for long, trouble-free life in harsh environments. Industries – from petrochemical, pulp and paper and mining to food and beverage, water and wastewater, minerals and more – trust their operations to the SD100. They power fans, compressors, pumps, conveyors, hoists, winders and many more applications in the toughest environments day in / day out. Built for long, trouble-free life, they are backed by a 3-year warranty.
All SD100 motors are inverter duty and have their VFD ratings right on the nameplate. They are designed and manufactured to meet or exceed NEMA Premium® efficiency (MG1 Table 12-12). A wide selection of options, among them IP56 ingress protection, encoders, brakes and blowers, plus other QuikMOD modifications provide higher flexibility and reliability in diverse operating conditions.
- Frame and end shields
The SIMOTICS SD100 frame, end shields, fan guard and easy-to-access diagonally split, oversized terminal box are all cast-iron. The terminal box features a neoprene gasket and includes a heavy duty ground lug and clearly and permanently marked non-wicking leads. These characteristics plus high strength zinc-plated hardware, epoxy paint and stainless steel nameplates provide exceptional structural integrity and corrosion resistance and make them ideal for severe duty applications in harsh environments - Rotor and stator windings
A unique offset rotor bar design provides improved efficiency, while larger bars and end rings reduce resistance for lower rotor losses. Each die cast aluminum rotor assembly is dynamically balanced for extended bearing life and includes a high-strength carbon steel (C1045) shaft for maximum rotor performance. The stator is manufactured with premium electrical C5-grade steel laminations and copper electrical magnet wire that furthers the reduction of losses - Insulation
The proprietary Class F non-hygroscopic insulation system with NEMA Class B temperature rise provides an extra margin of thermal life. The varnish system ensures maximum winding penetration to provide protection from moisture, corrosion and electrical shock. This insulation system meets or exceeds NEMA MG1 2014 Part 31 making the motors suitable for variable speed drives in constant torque (4:1) and variable torque (20:1). All windings are tested for CIV - Cooling system
A non-sparking, bi-directional fan is locked and keyed to the shaft. Its low-inertia design reduces windage losses, improves airflow, reduces noise and provides dependable cooling. Cast Iron fan covers are standard for all frame sizes - Bearings
Single shielded bearings and V ring slingers are used for optimum bearing protection against contaminants. Inpro/Seal® bearing isolators are available on both ends - Lubrication
A specially formulated, high temperature tested, polyurea-based grease is used to provide more than four times the lubrication life of other greases - Corrosion resistance
Cast iron construction, polycarbonate fan, zinc-plated hardware, epoxy enamel paint and stainless steel nameplate resist rust and corrosion. - Customization
Siemens motors are available with a wide variety of QuikMOD modifications and custom designs to meet specific motor needs
SIMOTICS NEMA SD100 IEEE841 severe duty motors – built to survive the toughest conditions
The SIMOTICS SD100 IEEE841 severe duty motors are designed and built to the very stringent IEEE 841-2009 standard for long, trouble-free life in harsh environments. First used in petroleum and chemical applications, it is also specified in other industries such as pulp and paper, mining, food and beverage, water and wastewater, minerals and more. Users in these industries trust their operations to the SD100 to power fans, compressors, pumps, conveyors, hoists, winders and many more applications in the toughest environments day in / day out). Built for long, trouble-free life, they are backed up by a 5-year warranty.
All SD100 IEEE841 motors are inverter duty and have their VFD ratings right on the nameplate. They are designed and manufactured to meet or exceed NEMA Premium® efficiency (MG1 Table 12-12); higher efficiency is available on many sizes with the optional copper rotor. All SD100 IEEE841 severe duty motors are equipped with drive end and opposite drive end Inpro/Seal® bearing isolators. A wide selection of options, among them IP56 ingress protection, encoders, brakes and blowers, plus other QuikMOD modifications provide higher flexibility and reliability in diverse operating conditions.
- Frame and end shields
The SIMOTICS SD100 frame, end shields, fan guard and easy-to-access diagonally split, oversized terminal box are all cast-iron. The terminal box features a neoprene gasket and includes a heavy duty ground lug and clearly and permanently marked non-wicking leads. These characteristics plus high strength zinc-plated hardware, epoxy paint and stainless steel nameplates provide exceptional structural integrity and corrosion resistance and make them ideal for severe duty applications in harsh environments - Rotor and stator windings
A unique offset rotor bar design provides improved efficiency, while larger bars and end rings reduce resistance for lower rotor losses. Each die cast aluminum rotor assembly is dynamically balanced for extended bearing life and includes a high-strength carbon steel (C1045) shaft for maximum rotor performance. The stator is manufactured with premium electrical C5-grade steel laminations and copper electrical magnet wire that furthers the reduction of losses - Insulation
The proprietary Class F non-hygroscopic insulation system with NEMA Class B temperature rise provides an extra margin of thermal life. The varnish system ensures maximum winding penetration to provide protection from moisture, corrosion and electrical shock. This insulation system meets or exceeds NEMA MG1 2014 Part 31 making the motors suitable for variable speed drives in constant torque (4:1) and variable torque (20:1). All windings are tested for CIV - Cooling system
A non-sparking, bi-directional fan is locked and keyed to the shaft. Its low-inertia design reduces windage losses, improves airflow, reduces noise and provides dependable cooling. Cast Iron fan covers are standard for all frame sizes - Bearings
Single shielded bearings and V ring slingers are used for optimum bearing protection against contaminants. Inpro/Seal® bearing isolators are standard on both ends - Lubrication
A specially formulated, high temperature tested, polyurea-based grease is used to provide more than four times the lubrication life of other greases - Corrosion resistance
Cast iron construction, polycarbonate fan, zinc-plated hardware, epoxy enamel paint and stainless steel nameplate resist rust and corrosion. - Customization
Siemens motors are available with a wide variety of QuikMOD modifications and custom designs to meet specific motor needs
SIMOTICS NEMA SD200 – flexible severe-duty motor designed for long, trouble-free life in harsh environments
The SIMOTICS NEMA SD200 motor from Siemens combines flexibility, performance and efficiency to meet virtually any customer need. The footing works for the vast majority of retrofits and a broad selection of options makes custom orders a thing of the past, allowing for optimal performance in diverse operating conditions. At 125 - 800 horsepower and 444 - 5013 frame size, it delivers maximum efficiency without complications — not only meeting but exceeding NEMA Premium and U.S. DoE requirements. It's also built with tomorrow’s technology advancements in mind, so you and your customers are ready for whatever comes.
Built for the harshest industries and applications
A wide range of industries already trust their operations to Siemens severe-duty motors — from oil and gas, petrochemical, pulp and paper, and mining, to food and beverage, water and wastewater, minerals, and more. The next-generation SIMOTICS NEMA SD200 motor is built to power fans, compressors, pumps, conveyors, hoists, winders and similar equipment in these tough environments day in / day out. The reliable motor design ensures a long, trouble-free life backed by a three-year warranty.
- Frame and end shields
The SIMOTICS NEMA SD200 features a cast-iron frame. The easy-to-access, diagonally split, oversized terminal box comes with a neoprene gasket and includes a heavy-duty ground lug and non-wicking leads that are clearly and permanently marked. A total of 38 optional positions are available, most of which are field-modifiable. These features — along with the high-strength zinc-plated hardware, epoxy paint and stainless steel nameplate — provide exceptional structural integrity and high resistance to rust and corrosion, making the motor more than suitable for severe-duty applications in harsh environments - Rotor and stator windings
A unique offset rotor bar design provides improved efficiency, while larger bars and end rings reduce resistance for lower rotor losses. Each die cast aluminum rotor assembly is dynamically balanced for extended bearing life and includes a high-strength carbon steel (C1045) shaft for maximum rotor performance. The stator is manufactured with premium electrical C5 grade steel lamination and copper electrical magnet wire reduces losses - Insulation
The proprietary Class H non-hygroscopic insulation system, NEMA Class B temperature rise, provide an extra margin of thermal life. The varnish system application ensures maximum wire penetration to provide protection from moisture, corrosion and electrical shock. This insulation system meets or exceeds NEMA MG1 2014 Part 31 making the motors suitable for variable speed drives in constant torque and variable torque applications (refer to catalog for details). All windings are tested for CIV - Cooling systems
A non-sparking, bi-directional fan is locked and keyed to the shaft. Its low-inertia design reduces windage losses, improves airflow, reduces noise and provides dependable cooling. Cast-iron fan covers are provided for all frame sizes - Bearings
Single-shielded bearings are used for better protection against contaminants. The insulated NDE bearing provides protection for harsh VSD applications right off the shelf
SIMOTICS NEMA SD661 severe duty motors – for air-cooled heat exchanger
Built in compliance with the requirements of API661 standard, by incorporating regreasable roller bearings and cast-iron end caps on frames 210-360, these motors are ideal for use for heavy belt driven air cooled heat exchangers applications in the petrochemical, energy and other similar industries.
- Frame and bearing housings
Cast-iron construction for exceptional structural integrity and corrosion resistance, equipped with integrally cast feet. Condensation T-drains are provided. Lifting eyebolts are included with motors > 75 lbs. - Rotor
Each rotor assembly is dynamically balanced for extended bearing life, and includes a high strength carbon steel (C1045) shaft for maximum rotor performance - Stator / windings
Manufactured with premium electrical-grade steel laminations and copper electrical magnet wire to lower losses for improved efficiencies. An unique stator core design lowers flux density while increasing cooling capacity. Large conductor cross-section reduces resistance and lowers stator losses - Insulation
Proprietary inverter-rated Class F non-hygroscopic insulation system with NEMA Class B temperature rise @ 1.0 S.F. provides an extra margin of thermal life. Varnish system application ensures maximum wire penetration to provide protection from moisture, corrosion and electrical shock. This insulation system meets or exceeds NEMA MG1 - 2010, Part 31 making all motors suitable for operation with adjustable frequency drives - Cooling
A bi-directional, non-sparking fan is locked and keyed to the shaft. Its design reduces windage losses, improves air flow, reduces noise and provides dependable cooling. Cast-iron fan covers are provided on all frame sizes - Bearings
Regreasable, oversized double shielded (210T - 360T) / single shielded (180T - 360T) with cast iron inner caps on both ends of the motor. Alemite® grease fittings on the inlets and pipe plugs on the relief ports for ease of routine maintenance. All motors are equipped with drive end and opposite drive end shaft V-ring slingers for added bearing protection. Provisions for Inpro/Seal® bearing isolators are standard on both ends - Lubrication
A specially formulated, high temperature tested, polyurea based grease is used to provide more than four times the lubrication life of other greases - Oversized conduit box
Cast-iron construction that is larger than industry standards, diagonally-split, neoprene gasketed and rotatable in 90° increments for quick and easy connections. A ground lug is provided. Non-wicking, clearly and permanently marked leads - Corrosion resistance
Cast iron construction, polycarbonate fan, zinc-plated hardware, epoxy enamel paint and stainless steel nameplate resist rust and corrosion - Customization
Siemens motors are available with a wide variety of QuikMOD modifications and custom designs to meet specific motor needs
