Customization High voltage Indoor earthing switch Manufacturer 36kV

Product Overview
Our JN22-36 Indoor Earthing Switch is a high-reliability electrical protection device, specifically designed for three-phase AC power systems with a rated voltage range of 7.2KV to 40.5KV and a frequency of 50/60Hz. Widely applied in power plants, transformer substations, petrochemical industry, metallurgy, manufacturing, airports, residential areas and other key fields, this indoor earthing switch is engineered to be mounted on indoor air-insulated switchgear—including popular models such as KYN28, KYN96, and ABB ZS series. Compliant with global standards (GB, DL, IEC, DIN, VDE, and standards of other advanced industrial countries), it and its extended product range fully meet the strict requirements of international power infrastructure projects, making it an ideal choice for global buyers, contractors, and bulk procurement.

 Core Features

• Wide Voltage Compatibility: Suitable for 7.2KV~40.5KV three-phase AC power systems (50/60Hz), adapting to diverse medium-voltage power distribution requirements worldwide.
• Broad Switchgear Compatibility: Optimized for installation on indoor air-insulated switchgear, including KYN28, KYN96, ABB ZS series, and other mainstream models—ensuring seamless integration into existing or new power systems.
• Global Standard Compliance: Fully conforms to GB, DL, IEC, DIN, VDE standards, as well as the technical requirements of other advanced industrial countries, eliminating compatibility issues for cross-border procurement.
• Versatile Application Scenarios: Ideal for power plants, substations, petrochemicals, metallurgy, manufacturing, airports, residential areas, and other industrial, commercial, and municipal power projects.
• Reliable Protective Performance: Provides effective earthing protection for electrical equipment and personnel during maintenance, preventing electric shock hazards and ensuring operational safety.
• Durable Indoor Design: Engineered for indoor use, with a robust structure that adapts to harsh service environments (extreme temperature, high humidity, high altitude) and ensures long service life.

Technical data

Key Application Scenarios
The JN22-36 Indoor Earthing Switch is a critical protective device for indoor medium-voltage power distribution systems, widely used in global projects such as:

• Power plants and transformer substations (indoor switchgear protection and maintenance)
• Petrochemical and metallurgical enterprises (hazardous area power system protection)
• Manufacturing facilities (factory indoor power distribution safety)
• Municipal and commercial facilities (airports, large shopping malls, office buildings)
• Residential area power distribution centers (indoor switchgear room protection)
• Cross-border power infrastructure construction and old system upgrading projects

Core Advantages for Global Buyers

• Global Standard Compliance: Meets international standards (IEC, DIN, VDE, etc.) and advanced industrial country requirements, ensuring market access and cross-border project compatibility.
• Broad Compatibility: Works seamlessly with KYN28, KYN96, ABB ZS series switchgear—no additional modifications needed for integration, reducing procurement and installation costs.
• Harsh Environment Adaptability: Withstands extreme temperatures (-35℃~+40℃), high humidity, and high altitude (2500m), suitable for diverse global indoor working conditions.
• Reliable Safety Protection: Professional earthing design ensures personnel and equipment safety during maintenance, reducing accident risks and operational losses.
• Bulk Procurement Friendly: Stable production capacity supports large-volume orders, with on-time delivery and factory-direct pricing to reduce cross-border procurement costs.
• Low Maintenance Cost: Robust structural design and high-quality materials ensure long service life, minimizing subsequent maintenance frequency and costs.