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China Indoor Electrical Disconnect Switch 11kV Manufacturer, Supplier, Factory

Ensuring safe and reliable isolation in high voltage applications is paramount. Our Indoor Electrical Disconnect Switch 11kV is engineered to meet the rigorous demands of modern power distribution systems, providing a visible break point for maintenance and safety. As a core component of Indoor High Voltage Switchgear Equipment, it guarantees operational integrity. This device serves as a critical Indoor HV Safety Disconnect Switch, designed to de-energize circuits completely and protect personnel during servicing. Its robust construction also makes it an ideal Indoor HV Isolation Switch for a variety of industrial and utility settings. For applications requiring higher voltage ratings, we also offer an Indoor Electrical Disconnect Switch 33kV with corresponding specifications.


The Indoor Electrical Disconnect Switch 11kV is built for durability and exceptional performance in controlled environments. It features a three-position switching mechanism (ON, OFF, and EARTHED) with clear visual indicators, ensuring unambiguous status confirmation. The switch utilizes high-conductivity copper contacts with silver plating for minimal contact resistance and reliable current carrying capacity. Its insulation system is designed with high-grade materials to withstand transient overvoltages and provide long-term dielectric strength. Operating mechanisms are engineered for smooth, low-effort manual operation, often complemented by optional motorized drives for remote control integration. The compact design of the Indoor Electrical Disconnect Switch 11kV allows for efficient use of space within switchgear panels, while its rigid chassis ensures mechanical stability and alignment over thousands of operational cycles.

Key Specifications:

  • Rated Voltage: 12kV / 7.2kV
  • Rated Normal Current: 630A, 1250A, 2000A, 2500A, 3150A
  • Rated Short-Time Withstand Current (3s): 25kA, 31.5kA, 40kA
  • Rated Peak Withstand Current: 63kA, 80kA, 100kA
  • Power Frequency Withstand Voltage (1 min): 42kV (across open contacts), 48kV (to earth)
  • Lightning Impulse Withstand Voltage (1.2/50µs): 75kV (across open contacts), 85kV (to earth)
  • Mechanical Life: 10,000 operations minimum
  • Operating Ambient Temperature: -15°C to +40°C
  • Insulation Medium: Air Insulated
Model Variant Rated Current (A) Short-Time Current (kA/3s) Standard Compliance
EDS-11/630 630 25 IEC 62271-102, ANSI C37.34
EDS-11/1250 1250 31.5 IEC 62271-102, ANSI C37.34
EDS-11/2000 2000 40 IEC 62271-102, ANSI C37.34
EDS-11/3150 3150 40 IEC 62271-102, ANSI C37.34

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