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VN3-12E Indoor Vacuum Circuit Breaker (12kV)
Indoor Vacuum Circuit Breakers

VN3-12E Indoor Vacuum Circuit Breaker (12kV)

The VN3-12E is a 12kV indoor vacuum circuit breaker providing reliable control and protection for 10kV power systems. Features ultra-low resistance vacuum arc chambers and a modular spring mechanism designed for minimal maintenance.

Key Features

  • 12kV rated voltage, up to 5000A rated current
  • 50kA short-circuit breaking capacity
  • Mechanical life: 30,000 operations
  • Ultra-low resistance vacuum arc chamber
  • Modular spring operating mechanism
  • Silver-plated conductors for improved conductivity
  • Self-lubricating bearings — maintenance-free
  • Advanced surface treatment for humid environments

Technical Specifications

Rated Voltage12 kV
Rated CurrentUp to 5000 A
Rated Short-Circuit Breaking Current50 kA
Mechanical Life30,000 operations
Rated Frequency50/60 Hz
Insulation TypeEmbedded pole, epoxy resin
Operating MechanismModular spring

Applications

Power grid protection and controlIndustrial switchgear cabinetsSubstation primary switchingCommercial power distribution

Standards Compliance

IEC 62271-100GB 1984
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Frequently Asked Questions

What is the rated voltage of the VN3-12E Indoor Vacuum Circuit Breaker (12kV)?
The VN3-12E Indoor Vacuum Circuit Breaker (12kV) has a rated voltage of 12 kV. Please refer to the technical specifications table above for complete electrical ratings.
What is the lead time for VN3-12E Indoor Vacuum Circuit Breaker (12kV)?
Standard lead time for the VN3-12E Indoor Vacuum Circuit Breaker (12kV) 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 VN3-12E Indoor Vacuum Circuit Breaker (12kV) be customized for OEM projects?
Yes, NAIJI Electric offers OEM and custom manufacturing for the VN3-12E Indoor Vacuum Circuit Breaker (12kV). We can adjust specifications, branding, and configurations to meet project-specific requirements. Minimum order quantities apply.
What standards does the VN3-12E Indoor Vacuum Circuit Breaker (12kV) comply with?
The VN3-12E Indoor Vacuum Circuit Breaker (12kV) is designed and tested in accordance with IEC 62271-100, GB 1984. All products undergo rigorous factory testing before shipment.

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