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.