The SIEMENS Severe Duty motors with grey cast iron frames are especially rugged. This makes them the first choice for applications in the toughest of environmental conditions. They master dust or vibration in crushers and mixers as well as the aggressive atmospheres that prevail in the petrochemical and process industries.
Their design optimally supports motor cooling and therefore offers the same handling as for the General Purpose line.
The following SIEMENS lines are available for severe duty applications:
The size of a motor frequently plays a significant role in machines. This is the reason that SIEMENS 1LE1 motors in IE2, IE3 and IE4 are, as a maximum, as long as their predecessors from the SIEMENS 1LG series in IE2.
An additional highlight: In some instances, IE3 and IE4 motors fit in the same frame as motors with IE2. It goes without saying that the efficiency classes do not differ regarding their shaft height, which is why the mechanical interface to the machine always stays the same. In turn, this facilitates an essentially straightforward efficiency upgrade to IE3 and IE4 – without having to adapt the mechanical design of a machine.
Also in the Severe Duty area, increased power motors can be precisely the solution if the space available for a standard motor is not sufficient. The reason for this is that these motors have the same power rating but in the next smaller shaft height.
Motors are suitable with standard insulation system up to 3 AC 500 V operated in motor mode.
|Name||1LE15 / 1LE16 series|
|Power output||0,75 kW ÷ 200 kW|
|Speed range||750 ÷ 3600 rpm|
|Voltage||220/400V - 500V - 400/690V|
|IEC frame||100L ÷ 315L|
|Class of insulation||F, H (VPI)|
|Degree of protection||IP 55 - IP 56 - IP 65|
|Method of cooling||IC 411 - IC 416|
|Type of construction||Foot and flange|
|Efficiency class||IE1, IE2, IE3, IE4|
|Typical applications||(Petro)chemical industry, Pharmaceutical, Printing, Process industry, Pumps, Fans, Compressors|