Products

Dongfa Intelligent supplies global low voltage power distribution buyers with Intelligent Air Circuit Breaker ACB. This product covers frame sizes from 2000A to 6300A, with rated ultimate short-circuit breaking capacity up to 120kA (400V), equipped with intelligent controllers supporting selective protection, remote communication, and fault recording. Buyers seeking main incoming, bus-tie, or large-capacity feeder protection and control can request a quote for selection support.

Dongfa Intelligent 40.5kV Indoor Earthing Switch 31.5kA is designed for 40.5kV switchgear applications and supplied as a JN22-40.5/31.5 series configuration. As a China manufacturer, Dongfa Intelligent provides a rated short-time withstand current of 31.5kA/4s, an 80kA short-circuit making current, 95kV power-frequency withstand voltage, and 185kV lightning impulse withstand voltage. Three phase spacing options of 300mm, 350mm, and 400mm are available, with an insulating partition required for the 300mm configuration.

Dongfa Intelligent JN15-12 series 12kV Indoor Earthing Switch : 31.5kA/4s thermal stability, 80kA making current, four phase spacings (210–275mm), 2,000 operations mechanical life, dedicated production line with full inspection, MOQ 1 unit, and 7–15 working days lead time for standard products.

Dongfa Intelligent supplies the 12kV Indoor Earthing Switch 31.5kA for switchgear builders and power engineering procurement teams. This 12kV unit is rated for 31.5kA/4s short-time withstand current, 80kA short-circuit making current, 80kA peak withstand current, 42kV power-frequency withstand voltage, and 75kV lightning impulse withstand voltage. Mechanical life is 3,000 operations. Nine phase spacings from 150mm to 275mm are available; 150mm spacing requires phase-to-phase insulating partitions.

Dongfa Intelligent is a manufacturer and supplier of 40.5kV Indoor Disconnect Switch for indoor high-voltage switchgear applications. The GN27-40.5 series provides 630A and 1250A configurations, with 20kA/31.5kA 4s short-time withstand current and 50kA/80kA rated peak withstand current. The series also provides 185kV/215kV lightning impulse withstand and 95kV/115kV power-frequency withstand for different insulation conditions. Procurement teams can provide switchgear requirements for configuration review.

The GN30-24D series is a 24kV Indoor Disconnect Switch with Earthing Switch, manufactured by Dongfa Intelligent. The disconnector and earthing switch are mounted on the same base. Four current ratings are available: 400A, 630A, 1000A, and 1250A. Thermal stability current ranges from 12.5kA to 31.5kA (4s), and dynamic stability current from 31.5kA to 80kA. The insulation level is 42kV power-frequency withstand and 75kV impulse withstand.