
GW13 series is an outdoor high voltage AC isolation switch designed specifically for 50Hz AC power systems. Mainly used to open and close circuits under no-load conditions to achieve electrical isolation or connect the neutral point of a transformer
GN30-12D is a special model of GN30-12: built-in grounding blade, increasing the safety of the grounding system. Supports manual control, control the movement of the blade by turning the handle.
The disconnector type GN30-12 is a rotating contact blade for indoor high-voltage switchgear, suitable for power systems with 50 Hz alternating current and 12 kV rated voltage. It is mainly used to open and close circuits under no-load conditions to achieve electrical isolation. Its compact design is suitable for installation in high-voltage switchgears, improving distribution system space utilization
The GN19-12 type disconnect switch is an indoor high-voltage switching device widely used in power systems with 50 Hz alternating current and 12 kV rated voltage. Mainly used to open and close circuits under no-load conditions to achieve reliable insulation between electrical equipment and power supply. It is divided into regular type (GN19-12) and wall type (GN19-12C), and supports three-phase parallel installation or wall installation in special scenarios.
HRWK series is a low voltage fused isolation switch designed for 50Hz AC distribution systems with rated voltage of 0.5kV and below, with circuit isolation and short circuit protection functions.
HJDW6 series is a low voltage fused isolation switch designed specifically for 50Hz AC distribution lines with rated voltages of 500V and below. Mainly used for short circuit, overload, open circuit and short circuit protection under no-load conditions on the low voltage side of transformers
GW5 Isolation Switch 126-138KV Isolation Switch (also known as Disconnector) Rated Voltage: 126KV, Suitable for Three-Phase AC 50Hz High Voltage Transmission System, Support Outdoor Operation in Difficult Environment
GW5 Isolation Switch 40.5 kV Isolation Switch (also known as disconnector) Double column horizontal rotating, consists of insulated posts, conductive blades, base and control mechanism. The blades move horizontally at a constant speed when opening and closing, with strong ice breaking ability. The insulation support is a rod structure that prevents contamination.
GW4-220 isolation switch is an open AC isolation switch designed specifically for 220kV high voltage power systems, mainly used for circuit switching and electrical isolation of equipment under no-load conditions.
GW4 Isolation Switch 126-138 kV Isolation Switch (also known as a disconnector) Used for line isolation, equipment maintenance, or power system switching during no-load conditions, cannot disconnect loads or fault currents and must be used in conjunction with circuit breakers.
GW4 Isolation Switch 72.5kV Isolation switch (also known as disconnector) 72.5kV, suitable for high voltage 50/60Hz three-phase AC transmission system. Insulation characteristics: lightning impulse withstand voltage 185 kV (to ground), power frequency withstand voltage 100 kV (to ground), higher value of failure withstand voltage, ensuring the reliability of electrical insulation after tripping.
Ratings Voltage level: 40.5KV, suitable for three-phase AC 50Hz 24 Current specifications: Cover configurations such as 630A, 1250A, 2000A, etc., to meet different load requirements. Insulation characteristics: Frequency withstand voltage 95 kV (to ground), lightning impulse withstand voltage 185 kV (to ground), in accordance with IEC standards.
Shijiazhuang Hist Electric Co.,Ltd was founded in 2004, we are one of the professional cable accessories manufacturers in China. With strong technical strength in electrical engineering field, the company is capable of providing comprehensive construction solutions and technical support for cable accessories to customers in different regions and types in various complex construction environments.