VAS-12 12kV Medium Voltage Air Insulated Switchgear


PESTECH’s VAS-12 Single Busbar, 12kV Air Insulated Switchgear is built on proven vacuum switchgear technology.  Designed by specialists with over 30 years’ experience in MV switchgear and power distribution, VAS-12 meets the most stringent requirements for distribution switchgear.

Fully type-tested to IEC-62271-200, VAS-12 will provide the end-user with years[1] of trouble-free & reliable performance.  VAS-12 is also safe since all normal operations are carried out with the main Circuit Breaker compartment door closed – thus providing increased operator safety.


  • Metalclad, rigid construction
  • Full compartmentalized
  • Tested for Internal Arc Containment (IAC) up to 31.5kA/1s
  • VCB employs embedded pole design for greater reliability
  • Easy busbar assembly for faster installation & extension
  • Reduced maintenance
  • Generous cabling space
  • Integral circuit-side earthing switch


  • Bolted and riveted structure fabricated from punched and folded 1.5mm & 2mm thick Aluzinc and mild steel sheets
  • Unique folding of the steel sheets provide added rigidity to withstand the forces of an arcing fault in the enclosure
  • Four distinct compartments in each functional unit for greater reliability and safety
  • IP4X external protection as per IEC 60529
  • External covers painted with epoxy powder coating to RAL7035
  • Suitable for indoor application

Vacuum Circuit Breaker

At the heart of VAS-12 is the PVM1 series of Vacuum Circuit Breaker (VCB) with proven vacuum technology and type-tested to IEC 62271-100.  The VCB employs ‘embedded pole’ technology where the vacuum interrupter and the connecting arms are fully insulated, thus providing increased protection from insulation failures and accidental short-circuits.

Coupled with a reliable mechanism which is easy to replace, the PVM1 VCB represents an optimal design of VCB


Rated Voltage (kV) 12
Insulation Level:


  • 1-minute power frequency test (kV)
  • Impulse withstand (kV)



Frequency (Hz) 50
Rated Current (A) 630 1250 2000
Short-time Withstand Current (kA) 25 31.5 31.5
Short-circuit duration (s) 3
Rated Peak Withstand Current (kA) 63 80 80
Panel Main Busbar Ratings (A) 1250 / 2000
Branch Busbar Ratings (A) 800+ 1250+ 2000++
Panel Width (mm) 650 650 800
Basic Panel Depth – incl. covers (mm) 1675 1800
Panel Height / Metering Compt. Height ** (mm) 2050 / 692
Ingress Protection (external / internal) IP 4X / 2X
** Extra height available on request    +Insulated


++ Un-insulated


Typical Front View
Typical Front View
Feeder Side View
Feeder Side View
Incomer Side View
Incomer Side View

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