Contact Platform Support
Help CenterDisconnecting Switch GW4 40.5kV Outdoor High Voltage Isolator 1250A 3000 Mechanical Cycles
Product Spotlights
Related Products
-
GW4 Type Outdoor HV Disconnecting Switch 72.5kV 2000A Electric Motor OperatorUS$ 300MOQ: 1 Unit -
GW4-40.5 Outdoor High Voltage Isolator With Earth Blade 1250A ManualUS$ 300MOQ: 1 Unit
-
252kV GW4 Disconnecting Switch 2500A Self-Cleaning Contacts Spring OperatingUS$ 300MOQ: 1 Unit
-
GW4-126 Double Column Horizontal Rotary Disconnector 2000A High AltitudeUS$ 300MOQ: 1 Unit
-
33kV 35kV Drop Out Fuse 100A 200A IEC Standard Outdoor InstallationUS$ 180MOQ: 3 Units
Jinhua Dika Electrical Equipment Co., Ltd. proudly introduces our GW4 40.5kV Outdoor High Voltage Disconnecting Switch, designed for reliable isolation and safe maintenance of high-voltage power systems. Rated at 1250A with 3000 mechanical cycles, this isolator is built to withstand harsh outdoor environments while delivering consistent performance. As a manufacturer with over a decade of experience in electrical equipment, we ensure each unit undergoes rigorous quality control and meets international standards. Our commitment to innovation and customer satisfaction makes this disconnecting switch a trusted choice for utilities, substations, and industrial applications worldwide.
The GW4 series disconnecting switch is engineered for high voltage isolation at 40.5kV, commonly used in outdoor substations and power distribution networks. Its robust construction features a central rotating post design that provides a clear visual break for safe maintenance. The switch is available with manual or motorized operating mechanisms, allowing flexible integration into existing systems. With 3000 mechanical cycles, it offers long service life and reduced maintenance costs. Below are key technical specifications:
| Parameter | Value |
|---|---|
| Type | GW4 |
| Rated Voltage | 40.5 kV |
| Rated Current | 1250 A |
| Mechanical Cycles | 3000 |
| Rated Short-Time Withstand Current (3s) | 25 kA (optional up to 31.5 kA) |
| Rated Peak Withstand Current | 63 kA |
| Insulation Level (Lightning Impulse) | 185 kV (peak) |
| Power Frequency Withstand Voltage | 95 kV (rms) |
| Corrosion Protection | Hot-dip galvanized / Stainless steel (optional) |
Product Features and Benefits:
- Robust Mechanical Design: The GW4 switch uses a dual-column rotating insulator structure, ensuring high reliability and a clear break distance. With 3000 mechanical cycles, it reduces downtime and maintenance frequency.
- High Current Capacity: Rated at 1250A, it is suitable for medium to high load applications in distribution and transmission networks.
- Outdoor Durability: All metal parts are treated with anti-corrosion coating, and the insulators are made of high-strength porcelain or silicone rubber, resisting UV, rain, and pollution.
- Flexible Operation: Available with manual handle, motor mechanism, or remote control. Optional auxiliary switches and position indicators enhance monitoring and safety.
- Easy Installation: Compact design and modular components allow quick mounting on steel structures or concrete pedestals. Terminal connectors are compatible with copper or aluminum conductors.
- Safety Compliance: Designed in accordance with IEC 62271-102 and GB/T 1985 standards. We offer variants for seismic zones and high-altitude areas upon request.
- Customizable: Additional options include earthing blades, interlocking devices, and integrated surge arresters.
Why Choose Jinhua Dika Electrical Equipment Co., Ltd.?
As a specialized manufacturer located in Jinhua, Zhejiang, China, we have served global markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our annual export value exceeds US$1 Million, reflecting strong international trust. With a dedicated team of 11-50 skilled employees, we maintain strict quality management systems aligned with ISO9001 and other applicable standards. Each disconnecting switch is factory-tested to ensure electrical and mechanical performance. We offer comprehensive after-sales support, including technical documentation, spare parts, and on-site commissioning guidance. Contact us today to discuss your project requirements or request a quotation. Let Jinhua Dika be your reliable partner in high-voltage isolation solutions.
Frequently Asked Questions (FAQ)
-
Q: What is the difference between a disconnecting switch and a circuit breaker?
A: A disconnecting switch provides visible isolation and is used to safely disconnect a circuit under no-load or very low current conditions. It cannot interrupt fault currents like a circuit breaker. The GW4 is specifically designed for isolation purposes. -
Q: Can the GW4 switch be used for both indoor and outdoor applications?
A: This model is primarily designed for outdoor use. For indoor applications, we recommend our indoor series such as GN-type disconnectors. Outdoor models are weatherproof and suitable for harsh environments. -
Q: What operating voltages and currents are available?
A: Standard voltages include 12kV, 24kV, 40.5kV, and 72.5kV. Rated currents range from 630A to 3150A. The GW4 40.5kV 1250A is one of the most popular configurations, but we can customize based on your specification. -
Q: How many mechanical cycles does the switch support before maintenance?
A: The standard design supports 3000 mechanical cycles. For applications requiring higher durability, we offer options up to 5000 cycles. Regular lubrication and inspection can extend the service life significantly. -
Q: Does the switch come with earthing blades?
A: Yes, an earthing blade (grounding switch) can be integrated as an optional feature. This allows grounding of the downstream circuit when the disconnector is open, enhancing safety during maintenance. -
Q: Are motor operators available for remote control?
A: Yes, we provide electric motor operating mechanisms for remote and automatic control. Options include AC/DC motors, position feedback switches, and local/remote selector switches. -
Q: What certifications does your company hold?
A: Our factory operates under ISO9001 quality management system. Specific product certifications (like CE) can be provided upon request. We also follow international standards such as IEC 62271-102. -
Q: What is the lead time and shipping ports?
A: Typical lead time is 15-30 working days depending on quantity and customization. We ship from Shanghai, Tianjin, Guangzhou, or Ningbo ports. We can also arrange door-to-door delivery for certain destinations.
Send Inquiry to This Supplier
You May Also Like
-
100A 200A High Voltage Fuse Switch 33kV 35kV With Zinc Oxide ArresterUS$ 180MOQ: 3 Units
-
33kV 35kV Drop Out Fuse 100A 200A With Galvanized Steel BaseUS$ 180MOQ: 3 Units
-
100A 200A High Voltage Fuse Switch 33kV 35kV Compliant With IEC 60282-1US$ 180MOQ: 3 Units
-
100A 200A High Voltage Fuse Switch 33kV 35kV With Mill Test ReportUS$ 180MOQ: 3 Units
-
100A 200A High Voltage Fuse Switch for Overhead Power Line ProtectionUS$ 180MOQ: 3 Units
-
33kV 35kV Drop Out Fuse 100A 200A With 10-Year WarrantyUS$ 180MOQ: 3 Units
-
100A 200A High Voltage Fuse Switch 33kV 35kV for Transformer ProtectionUS$ 180MOQ: 3 Units
-
33kV 35kV Drop Out Fuse 100A 200A for Rural Electrification ProjectsUS$ 180MOQ: 3 Units
-
33kV 35kV High Voltage Drop Out Fuse 100A 200A for Substation ProtectionUS$ 180MOQ: 3 Units
-
GW5-35/110kv Outdoor Substation Disconnector With 50kA Short-Circuit Current for Power PlantsUS$ 500MOQ: 1 Unit
