Chemical industry Siemens

Область применения



Options for special environments

In the chemical industry, a wide range of different environmental conditions occur. Through a series of options, the motors can be adapted to the conditions at the installation site.

Order code

Characteristics

K26

Outdoor use: Exposure to the weather admissible, minimal chemical pollution (SO2), direct solar radiation;

Special finish in RAL 7030 stone gray (corrosivity category C2)

E83

Outdoor use: Municipal and industrial atmospheres, moderate chemical pollution (SO2), minimal salinity, direct exposure to weather; special finish (corrosivity category C3)

E82

Outdoor use: Industrial areas and coastal areas with moderate salinity, direct exposure to weather, frequent condensation, special finish (corrosivity category C4)

E81

Outdoor use: Coastal and offshore areas with a high level of pollution and almost continuous condensation or industrial areas with high levels of humidity or corrosive atmospheres; special finish (corrosivity category C5‑M/C5‑I)

M06

Special case: Sulfurous atmosphere; special finish (corrosivity category C3)



Further options for the chemical industry

Additional options are listed below that are typically required for applications in the chemical industry.

Order code

Characteristics

M72

Design for Zone 2 for mains-fed operation Ex nA II T3 according to IEC/EN 60079‑15

M73

Design for Zone 2 for converter-fed operation, with derating Ex nA II T3 according to IEC/EN 60079-15

M35

Design for Zone 22 for non-conductive dust (IP55) for mains-fed operation

M39

Design for Zone 22 for non-conductive dust (IP55) for converter-fed operation, derating

K56

IP56 degree of protection (non-heavy-sea)

K50

IP65 degree of protection

M27

Rust-resistant screws

K35

Metal external fan



Обзор



In the chemical industry, motors are subjected to external influences in the extreme. Operation in hazardous areas and aggressive atmospheres, in particular, result in a need to protect the motor using special measures.

To ensure safe and reliable operation, it is important to verify the following:

  • Explosion protection
  • Degree of protection
  • Ambient conditions

To meet the requirements of the chemical industry, SIMOTICS FD motors are available in a large number of industry-specific versions.

VIK version

The recommendations of the VIK ("Verband der Industriellen Energie- und Kraftwirtschaft e. V.", the Association of the Industrial Energy and Power Industry) describe the requirements for three-phase induction motors as often required by the chemical industry:

  • VIK standard version:
    1L.1 + order code K30 1) – "VIK" identification on rating plate.
  • VIK‑Ex n version:
    1M.1 + order code K30 1) – "VIK" identification on rating plate; "Ex nA IIC T3 Gc" on an extra rating plate in accordance with Directive 94/9/EC (ATEX)

1) For K30, the metal external fan must be ordered with order code K35.

Both motor versions include the technology for Zone 2 in "Non sparking" type of protection. In accordance with the technical requirements of VIK, motors can be supplied in frame sizes 315 and 355.