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Vacuum Circuit Breakers

12 / 24 / 36 kV
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Applications

EFG-brand vacuum circuit breakers are used for switching and protection in high-voltage air-insulated switchgear. They ensure controlled switching in high-voltage systems by extinguishing the electric arc generated during opening and closing in a vacuum environment.

  • High-voltage air-insulated switchgear
  • Electric power distribution systems
  • Substations
  • High-voltage switching systems
  • Industrial facilities
  • Power generation and distribution facilities
  • Protection and switching applications

Benefits

  • Performing the arc-quenching process in a vacuum environment
  • Product options for 12, 24, and 36 kV voltage levels
  • 1,250 A rated current
  • Product alternatives for different short-circuit withstand ratings
  • Compact design that can be integrated into high-voltage switchgear
  • Capability to perform both switching and protection functions
  • Adaptability to various project and system requirements
  • Design compliant with the IEC 62271-100 standard

Technical Specifications

Feature ARM-36-V-01 ARM-24-V-01 ARM-12-V-01
Rated Voltage 36 kV 24 kV 12 kV
Dielectric Withstand Voltage 70 kV 50 kV 28 kV
Lightning Impulse Withstand Voltage 170 kV 125 kV 75 kV
Rated Current 1,250 A 1,250 A 1,250 A
Rated Frequency 50 Hz 50 Hz 50 Hz
Short-Circuit Current 16 kA 20 kA 25 kA
Peak Withstand Current 40 kA 50 kA 62.5 kA
Short-Circuit Duration 3 sec. 3 sec. 3 sec.
Operating Cycle A-0.3 sec-KA-3 min-KA A-0.3 sec-KA-3 min-KA A-0.3 sec-KA-3 min-KA
Class E2, C1, M2 E2, C1, M2 E2, C1, M2
Applicable Standard IEC 62271-100 IEC 62271-100 IEC 62271-100
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