Product Description
The JN15 indoor high-voltage earthing switch is an industrial-grade safety device designed for high-voltage (24 kV, 50 Hz) power transmission lines. Manufactured in strict accordance with IEC standards and subjected to rigorous factory verification and third-party testing, the switch features a reliable design that ensures safety and regulatory compliance when integrated into power transmission systems.
The JN15 indoor high-voltage grounding switch designed for easy on-site installation, the fastener configuration maximizes personnel safety during disassembly and maintenance.
During power outages, it provides a safe, efficient earthing path for internal circuit conductors; it is capable of withstanding high short-circuit currents, safely isolating faulty loads, and eliminating overcurrent risks, thereby offering dual protection for both sensitive equipment and personnel.
Constructed from stainless steel with a matte silver-plated finish, the switch offers excellent conductivity, corrosion resistance, and aging resistance, ensuring no cracking or performance degradation even after prolonged use.
The JN15 indoor high-voltage grounding switch the built-in locking mechanism enables rapid, safe, and convenient switching operations, effectively preventing serious mechanical failures. An optimized connection design ensures uniform and constant contact force during operation, maintaining high connection efficiency while minimizing mechanical wear. Its robust mechanical structure withstands vibration and amplitude-related stresses.
The JN15 indoor high-voltage earthing switch has established itself as an indispensable, high-quality protective device for high-voltage (24 kV) circuits.
Product Specifications
|
Item |
Specification |
|
Rated Voltage |
12kV / 24kV |
|
Rated Frequency |
50Hz / 60Hz |
|
Rated Current |
630A / 1250A |
|
4s Short-time Withstand Current |
20kA / 31.5kA / 40kA |
|
Rated Short-time Making Current (peak) |
50kA / 80kA / 100kA |
|
Power Frequency Withstand Voltage (1 min) |
(1min) 42kV (12kV) / 65kV (24kV) |
|
Lightning Impulse Withstand Voltage (peak) |
(peak) 75kV (12kV) / 125kV (24kV) |
|
Insulator Material |
Epoxy Resin |
|
Conductor Material |
Silver-plated Electrolytic Copper |
|
Operation Type |
Manual Spring Operation |
|
Mechanical Endurance |
≥2000 operations |
|
Protection Class |
IP2X |
|
Standard |
GB1985 / IEC62271-102 |
|
Mounting Type |
Fixed Installation |
|
Applicable Switchgear |
KYN28 / XGN |
Product Features
1. Utilizes robust epoxy resin insulation components offering excellent dielectric strength and aging resistance, suitable for various indoor operating environments.
2. Contacts feature high-purity electrolytic copper with silver plating, ensuring low contact resistance, stable conductivity, and minimal wear during long-term operation.
3. Equipped with a manual spring operating mechanism for rapid and reliable grounding; mechanical service life is rated for at least 2,000 operations.
4. Demonstrates superior short-circuit making capacity and thermal stability, effectively withstanding the electrodynamic forces and thermal shocks associated with fault conditions.
5. Features a comprehensive mechanical interlocking design to effectively prevent misoperation and ensure the safety of maintenance personnel.
6. Compact structure allows for easy installation and compatibility with various indoor high-voltage switchgear types, such as KYN28 and XGN.
7. Manufactured in strict accordance with GB1985 and IEC62271-102 standards; suitable for 12kV and 24kV power systems.
Our Advantage
We are a specialized manufacturer of medium voltage switchgear components based in the "Electrical Equipment Capital" of China with a comprehensive assembly and testing facility. We are dedicated to improving your procurement efficiency and delivering the project on time.
All of our products have been tested to meet IEC and GB (Chinese National Standards). We provide a full suite of official documentation - including type test data, ISO certification, and CE marks - to meet the requirements of a wide variety of energy projects.
We offer custom solutions tailored to your switch size and specific operating conditions. Our services include custom labeling, neutral export packaging, custom logo printing (subject to minimum order size), and sample testing support.
Every product undergoes specific inspection and testing before it leaves the factory.
Our electrical components are widely used in the Middle East, Africa and Southeast Asian markets. With more than two decades of industry experience, we are well-versed in international export documentation and the technical specifications of local network projects, aiming to streamline and optimize the entire procurement process.
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