Our Air Ring Main Unit for secondary distribution is a factory-built, metal-encapsulated switchgear; suitable for either indoor or outdoor installation.
They integrate from 1 to 4 load-break switches for cables or transformer, an earth-fault indicator and an arc-extinguishing device.
The ARMU also has the option for installing Metering devices.

Product Highlights
Main Features:

•  High operating reliability.
•  Simple maintenance & inspection.
•  No isolating partitions.
•  High dynamic & thermal strength.
•  Tested by international laboratories
•  Encapsulated extinguishing device.
•  Current interruption without visisble arc.
•  High number of operation, simple mechanism.
•  Easy cable connection.
•  Possible to be connected with any SCADA system.

   

Design Standards:

• The Air Ring Main Units are designed, manufactured and tested according to the following IEC & VDE standards
• IEC publication 60271-200.
• IEC publication 60694
• IEC publication 60271-102
• IEC publication 420
• IEC publication 265  
• IEC publication 129
• DIN VDE 0670    

Applications:

• The Air Ring Main Unit is suitable for use in:
• Transmission & Distribution
• Buildings
• Industry
• Infrastructure