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Hybrid Switchgear PASS M00 - 72.5 to 100 kV

Compact switchgear fully assembled and high-voltage tested in factory


PASS M00 belongs to Hitachi Energy innovative high-voltage hybrid switchgear family PASS (Plug and Switch System). PASS encloses all functions of a complete switchgear bay in a single module. The hybrid design makes use of traditional air-insulated busbars to connect with other equipment in the substation while enclosing the following bay functions in a single-phase gas-insulated housing:

  • Circuit breaker

  • Combined disconnector and earthing switches

  • Voltage transformers and Voltage sensors

  • Current Transformers
  • Fast earthing switch option

  • Plug in cables option

PASS modules are 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 different climates and applications

  • Delivered fully assembled and tested, allowing energization within 12 hours for a single bus bar configuration 

  • Modular design enables highly customizable solutions in a short manufacturing time

  • A global service organization to support the equipment in operation through its entire lifetime 

Brief performance data

PASS M00 (72.5 - 100 kV)
Encapsulation Single phase
Rated voltage kV 72.5 100
Frequency Hz 50/60 50
Rated current A 2000/2500
Rated breaking current kA 31.5 20
Rated power frequency withstand voltage kV 140 185
Lightning impulse withstand level - LIWL kV 350 450

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