China High Voltage Switchgear Earthing Switch Manufacturer, Supplier, Factory

Ensuring absolute safety during high voltage switchgear maintenance is paramount. A properly rated and installed earthing switch is a critical component of this safety protocol. Our range of specialized grounding equipment, including the Indoor High Voltage Earthing Switch, provides a reliable and visible earth connection to de-energized circuits, protecting personnel from lethal electric shocks. For applications requiring integrated safety solutions, our Indoor HV Grounding Device offers robust performance. In configurations where isolation and grounding functions are combined, the HV Isolator Grounding Switch is the ideal choice. All our products are engineered to the highest standards, with the HV Safety Grounding Switch epitomizing our commitment to creating a safe working environment in substations and industrial power distribution systems.


The <产品名字> is engineered for durability, precision, and compliance with international electrical standards. It is designed to handle the rigorous demands of high voltage applications, providing a secure short-circuit path to earth. Its construction ensures minimal contact resistance and high withstand capability against short-time currents, making it a dependable last line of defense for maintenance crews.

Key Technical Parameters

  • Rated Voltage: Up to 40.5kV
  • Rated Short-Time Withstand Current (3s): 25kA, 31.5kA, 40kA
  • Rated Peak Withstand Current: 63kA, 80kA, 100kA
  • Mechanical Endurance: 2000 operations minimum
  • Operating Mechanism: Manual, Motor-operated, or Pneumatic
  • Insulation Level: Conforms to IEC 62271-102
  • Ambient Temperature Range: -25°C to +40°C

Standard Configuration Specifications

Model Series Rated Voltage (kV) Rated Current (A) Short-Time Current (kA/3s) Mounting Type
JN15 12 630 20, 25 Fixed
JN22 24 1250 31.5 Fixed
JN35 40.5 1250, 2000 31.5, 40 Fixed / Withdrawable
ESW-24 24 630 25 Withdrawable
ESW-40 40.5 1250 31.5 Withdrawable

Hot Products

  • High Voltage Power Zinc Oxide Lightning Arrester

    High Voltage Power Zinc Oxide Lightning Arrester

    Looking for a heavy-duty High Voltage Power Zinc Oxide Lightning Arrester manufacturer? Sangao manufactures these high-capacity assemblies specifically built for utility procurement teams who want to buy robust surge control systems. This rugged component provides continuous overvoltage protection for high-voltage substations, transmission lines, and power plants exposed to hostile weather.
  • 630A 3 Phase Vacuum Circuit Breaker

    630A 3 Phase Vacuum Circuit Breaker

    High quality 630A 3 phase Vacuum Circuit Breaker, as a type of vacuum circuit breaker with a rated current of 630A, is widely used in places that require frequent operation. As a side fixed type, SanGao's 630A three-phase vacuum circuit breaker is designed with dimensions suitable for load circuit breakers and vacuum circuit breaker combination switchgear. In recent years, our company has developed rapidly and our business scale has been expanding day by day. Adhere to technological innovation as the driving force, deeply implement the innovation driven strategy, and improve the mechanism for transforming scientific research achievements.
  • Outdoor Gas Circuit Breaker

    Outdoor Gas Circuit Breaker

    As a leading manufacturer of outdoor gas circuit breakers, SanGao Electric specializes in the design and production of top level SF6 gas circuit breakers (SF6-CB). Our focus is on developing Gas Circuit Breakers for high demand applications in the field of power transmission and distribution. We offer various types of SF6 circuit breakers to meet various voltage levels and operational requirements. Explore our choices and discover competitive SF6 circuit breaker prices!
  • Voltage Fixed Indoor Vacuum Circuit Breaker

    Voltage Fixed Indoor Vacuum Circuit Breaker

    Zhejiang SanGao Electric Co., Ltd. is a high-tech enterprise specializing in the production of Voltage Fixed Indoor Vacuum Circuit Breaker, which emerged and developed with China's reform and opening up. We can also customize products according to your requirements to achieve a Vacuum Circuit Breaker that meets your standards! Feel free to contact us anytime and inquire about pricing!
  • Electric Surge Protector Breaker Fuse Cutout

    Electric Surge Protector Breaker Fuse Cutout

    SanGao, a top Chinese supplier of Electric Surge Protector Breaker Fuse Cutout, provides high-durability surge protection and fault isolation equipment for medium-voltage overhead lines. Relying on pure physical mechanical protection, the product completely avoids electronic component failure risks, stably isolates overcurrent and surge faults, and protects core power grid equipment safely.
  • Outdoor Boundary Vacuum Circuit Breaker

    Outdoor Boundary Vacuum Circuit Breaker

    SanGao High Quality Outdoor Boundary Vacuum Circuit Breaker is an outdoor power distribution device with a rated voltage of 12KV and three-phase AC 50Hz. When the internal fault of the user occurs in the T-shaped connection of the 12KV distribution line, or although it occurs inside the user's incoming switch, the protection action time limit and improper protection of the substation's outgoing switch can cause the outgoing protection of the substation to disconnect.

Send Inquiry

X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept