36kv High Voltage Indoor Vacuum Circuit Breaker, Customizable

General Description

The ZN85-40.5/T Indoor High Voltage Vacuum Circuit Breaker is designed for use with the KYN61-40.5(Z) switchgear and represents the latest advancements in power supply and distribution equipment. This product complies with the GB1984-2003 standard and is available in various configurations, including vacuum circuit breaker trucks, isolation trucks, and fuse trucks. It is ideal for applications in industrial facilities, power plants, and substations, effectively handling load current, overloads, and short-circuit protection.

Structural Characteristics

1. Compact and Efficient Design:

   • The circuit breaker utilizes a compound insulation design, meeting air clearance and creepage distance requirements under normal operating conditions. This reduces the overall dimensions of the VCB while maintaining a clean, streamlined appearance.

2. Enhanced Operating Mechanism:

   • Designed specifically for the ZN85-40.5, the operating mechanism is highly reliable, with a long service life and minimal maintenance needs. The mechanism is free from routine maintenance, ensuring lower operational costs.

3. User-Friendly Truck Mechanism:

   • The circuit breaker truck is equipped with a screw rod and nut push-in mechanism, allowing for smooth, easy insertion and withdrawal from the panel. It features a mechanical interlock system that meets the "Five Preventions" safety standard, providing secure operation in demanding environments.

Environmental Conditions for Application

• Temperature Range: -15ºC to +40ºC
• Altitude: Suitable for use at altitudes up to 1000 meters; for installations above 1000 meters, please consult for special requirements.
• Humidity:
  • Daily average humidity: ≤95%
  • Monthly average humidity: ≤90%
• Saturated Vapor Pressure:
  • Daily average: ≤2.2 kPa
  • Monthly average: ≤1.8 kPa
• Seismic Resistance: Can withstand earthquake intensities up to 8 degrees.
• Installation Environment: Suitable for locations free from fire hazards, explosion risks, severe pollution, chemical corrosion, and intense vibration.

Product Features

1. Innovative Extinguishing Chamber:

   • The vacuum circuit breaker is designed with an upper-positioned extinguishing chamber, enhancing ease of maintenance and operation. The arrangement of internal components facilitates convenient adjustments and troubleshooting.

2. Advanced Composite Insulation:

   • The breaker uses a blend of air and organic insulation materials, resulting in a compact and lightweight design, with excellent dielectric strength and reliability.

3. Versatile Vacuum Arcing Chamber:

   • The ZN85-40.5 can be fitted with vacuum arcing chambers from reputable manufacturers, including Cutler Hammer (USA) and ZD (domestic). Both options feature longitudinal magnetic field arc-extinguishing technology, ensuring efficient arc interruption with low chopping current.

4. Low-Maintenance Spring Operating Mechanism:

   • The breaker's spring mechanism supports up to 10,000 operations without requiring maintenance, ensuring consistent performance and reduced downtime.

5. Power-Efficient Screw Propulsion Mechanism:

   • The screw propulsion system provides smooth, energy-efficient operation with reliable self-locking capabilities, enhancing operational safety and stability.

The ZN85-40.5 Indoor Vacuum Circuit Breaker is a robust, high-performance solution tailored for modern industrial power distribution needs, delivering reliable protection, efficient operation, and easy maintenance.(Updated2025.3.5day)