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Hybrid Switchgear PASS M0H for H-configured substations – from 72.5 to 245 kV

Compact switchgear assembled and high-voltage tested switchyard for rapid installation and energization

PASS M0H belongs to Hitachi Energy innovative high-voltage hybrid switchgear family PASS (Plug and Switch System). PASS M0H encloses all functions of a complete switchyard in a single subassembly designed for connections to the high voltage network with an H configuration. On one side, it uses traditional air-insulated connections between equipment; on the other side, it encloses the selected bay functions in a single-phase gas-insulated housing:

  • Circuit breaker
  • Combined disconnector and earthing switches
  • Voltage transformers and Voltage sensors
  • Current Transformers
  • Motor drive option
  • Fast earthing switch option
  • Plug in cables option

PASS M0H module is completely factory assembled and tested, ready for rapid installation and energization.


  • Integration of renewable power to the grid
  • Remote mining connections
  • Mobile or skid mounted substations
  • Substation extensions or bay replacements

Why Hitachi Energy?

  • PASS is the most widely installed hybrid switchgear worldwide, protecting networks in many different climates and applications.
  • Close to GIS compactness at AIS value - the best of both worlds
  • Delivered fully assembled and tested, ready for rapid installation and energization
  • Modular design enables highly customizable solutions in a short manufacturing time
  • Global service organization, local everywhere

Brief performance data

PASS M0H          
 Encapsulation Single phase        
 Rated voltage kV 72.5 145 170 245 
 Frequency Hz 50 - 60      
 Rated current A 3,150 3,150  3,150  4,000
 Rated Breaking current kA 40 40 40 50
 Rated power frequency withstand voltage kV 160 275 325 460
 Lightning impulse withstand level - LIWL kV 350 650 750 1050

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