• 

  APELCO-CAREL

• 

  Basler electric

• 

  Eberle (Schneider Electric)

• 

  Fischer Electronik

• 

  Kestrel

• 

  MAGNA-POWER ELECTRONICS

• 

  Square D (Schneider Electric)

• 

  TR Electronic

• 

  Warner Electric

• 

  ZED Ziegler Electronic Devices