Products

Dongfa Intelligent supplies 24kV Indoor High Voltage Disconnect Switchs for global switchgear builders and power engineering procurement teams. The GN30-24 series covers 400A, 630A, 1000A, and 1250A current ratings, with thermal stability current from 12.5kA to 31.5kA, dynamic stability current from 31.5kA to 80kA, 42kV power-frequency withstand, and 75kV impulse withstand. It is available in Flat-in/Flat-out and Vertical-in/Flat-out installation types.

For outdoor distribution systems built around a 15kV nominal voltage, the 15kV Outdoor High Voltage Isolator Switch provides a 17.5kV working-voltage configuration with 400A and 630A current options. Its 55kV/65kV power-frequency withstand and 105kV/120kV lightning impulse withstand ratings provide defined electrical parameters for insulation coordination, while the 2,000-operation mechanical life supports routine isolation and maintenance requirements.

Dongfa Intelligent provides the 12kV Outdoor High Voltage Disconnect Switch series for outdoor medium-voltage power distribution, covering 12kV, 17.5kV, and 24kV working voltage configurations. The series offers rated current options from 200A to 1250A, with different withstand-current and insulation levels for project-specific selection. Phase arrangement, installation method, environmental conditions, and electrical requirements can be considered when confirming the suitable configuration.

12kV Indoor High-Altitude Disconnect Switch from Dongfa Intelligent is designed for indoor 12kV switchgear used in high-altitude environments. The GN30-12GY series is available in 2000A, 2500A, and 3150A configurations, with 40–50kA 4s short-time withstand current, 100–125kA peak withstand current, and main-circuit resistance of 25–12μΩ. The configuration can be selected according to installation altitude, current rating, insulation conditions, and switchgear dimensions.

Dongfa Intelligent supplies the 12kV Indoor High Voltage Isolating Switch for indoor 12kV switchgear, with GN19-12 series configurations covering 400A, 630A, 1000A, and 1250A. The series provides 210mm, 230mm, 250mm, and 275mm phase spacing options, with different structural dimensions available for new switchgear and replacement projects. Configuration can be reviewed according to cabinet drawings, mounting dimensions, and existing installation conditions.

Dongfa Intelligent is a manufacturer of 12kV Indoor Disconnect Switch with Earthing Switch for indoor medium-voltage switchgear. The GN30-12(D) series integrates circuit isolation and earthing functions on one base, with 2000A, 2500A, and 3150A configurations, 40/50kA 4s short-time withstand current, 100/125kA peak withstand current, and main-circuit resistance down to 12μΩ. The integrated design supports switchgear layouts requiring coordinated isolation, earthing, and interlocking functions.