SIMOTICS SD (Severe Duty)

Electric motors with a cast-iron frame

The most popular design of squirrel-cage induction motors in a cast-iron body for demanding use in a safe (explosion-free or ignition-free) environment, in a variety of industrial applications (such as conveyors, hoists, blowers, simple machine tools, pumps, fans, etc.).
Available in sizes 71-315.

Cast-iron motors produced by Siemens are split into two categories:

• Standard Line
  
  • 1LE15/1LE55 series electric motors with basic equipment (standard bearings, plastic fan cover, standard paint, etc.)
  • 12-month guarantee

• Performace Line
  
  • 1LE16/1LE56 series electric motors with premium equipment: reinforced bearings with lubrication in most sizes, thicker and more durable paint, metal fan cover, anti-condensation holes with special valve, 3 x PTC winding thermal protection in the price
  • 36-month guarantee

Pros:

• broad configuration options
  
  • installation of modular superstructures (electromagnetic brakes, ventilation units, IR, thermal protection, etc.)
  • various mechanical designs (possible modifications of the shaft shape, various positions of the terminal boxes, various bearing designs, etc.)
• high durability, suitable for demanding working conditions
• extended guarantee period for the 1LE16/1LE56 series
• available up to 500 kW (this will rise further in the future)
• also available in higher power version
• can be purchased and configured in our e-shop

Cons:

• more expensive
• heavier

Low voltage squirrel-cage motors overview