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VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV)
Indoor Vacuum Circuit Breakers

VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV)

The VN1-40.5E is a 40.5kV indoor vacuum circuit breaker for 36kV and 40.5kV power networks. Offers the highest voltage class in the VN series with 20,000 mechanical operations life and up to 3150A rated current.

Key Features

  • 40.5kV rated voltage — highest voltage class
  • Up to 3150A rated current
  • 40kA short-circuit breaking capacity
  • Mechanical life: 20,000 operations
  • Embedded pole insulation design
  • Ultra-low resistance vacuum arc chambers

Technical Specifications

Rated Voltage40.5 kV
Rated CurrentUp to 3150 A
Rated Short-Circuit Breaking Current40 kA
Mechanical Life20,000 operations
Rated Frequency50/60 Hz
Insulation TypeEmbedded pole, epoxy resin

Applications

36kV / 40.5kV power grid protectionHigh-voltage substation switchingIndustrial heavy-duty applicationsPower generation plants

Standards Compliance

IEC 62271-100GB 1984
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Frequently Asked Questions

What is the rated voltage of the VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV)?
The VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV) has a rated voltage of 40.5 kV. Please refer to the technical specifications table above for complete electrical ratings.
What is the lead time for VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV)?
Standard lead time for the VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV) is approximately 30 days. Larger quantities or custom configurations may require additional production time. Contact our sales team for a precise delivery schedule.
Can the VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV) be customized for OEM projects?
Yes, NAIJI Electric offers OEM and custom manufacturing for the VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV). We can adjust specifications, branding, and configurations to meet project-specific requirements. Minimum order quantities apply.
What standards does the VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV) comply with?
The VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV) is designed and tested in accordance with IEC 62271-100, GB 1984. All products undergo rigorous factory testing before shipment.

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