Product Description
The GW1 series outdoor disconnect switch is designed for medium-voltage distribution systems with rated voltages ranging from 12 kV to 40.5 kV. It is suitable for a wide range of distribution projects, including substations, overhead lines, new substation construction, grid upgrades, railway electrification, line sectionalizing, and branch line control.
The GW1 Outdoor Isolation Switch (rated voltage 12–40.5 kV) Featuring a simple structure, the switch creates a clearly visible isolation gap when opened, allowing maintenance personnel to directly verify the circuit status. However, the presence of a visible gap alone does not fully guarantee on-site safety; therefore, personnel must strictly adhere to electrical safety protocols - such as isolating the circuit, verifying the absence of voltage, and ensuring reliable grounding - before performing maintenance. Selecting the appropriate model, installing it according to standards, and conducting regular inspections help ensure stable equipment operation and extend its service life.
The GW1 Outdoor Isolation Switch (rated voltage 12–40.5 kV) is adaptable to various environmental conditions. It offers excellent long-term durability, with components and housings treated to minimize corrosion and oxidation. The composite insulators not only meet insulation requirements and ensure reliable operation in environments characterized by heavy industrial pollution, salt spray, condensation, or strong winds, but also provide robust structural support for moving parts.
The contacts are made of stainless steel, which helps maintain contact pressure and prevents issues such as poor contact or loosening. Low contact resistance minimizes temperature fluctuations during current flow and reduces the risk of localized overheating. Actual operational performance depends largely on the condition of the contacts, installation quality, and routine maintenance.
The operating mechanism and support structure meet requirements for mechanical and thermal stability; when rated parameters align with operational needs, the switch can withstand the mechanical stresses and thermal effects associated with specified short-circuit conditions.
The GW1 series switch is your optimal choice.
Material
Base & Frame
Hot-dip galvanized steel (anti-corrosion treatment)
Conductive Parts
High-conductivity copper (T2Y) with silver-plated contacts (≥20μm) and stainless steel pressure springs
Insulators
High-strength porcelain or silicone rubber composite (anti-pollution type available)
Specifications
|
Specification |
unit |
GW1‑11 |
GW1‑24 |
GW1‑33 |
GW1‑40.5 |
|
Rated voltage (Vn) |
kV |
11 |
24 |
33 |
40.5 |
|
50Hz‑1min |
kV |
35 |
55 |
75 |
90 |
|
Across insulating distance |
kV |
45 |
75 |
100 |
125 |
|
To earth & between poles |
kV |
75 |
125 |
170 |
200 |
|
Across insulating distance |
kV |
85 |
145 |
170 |
200 |
|
Rated current |
A |
250‑400‑630 |
250‑400‑630 |
250‑400‑630 |
400‑630‑1000 |
|
Short‑time current |
kA |
16 |
※16※ |
16 |
16 |
|
Peak withstand current |
kA |
40 |
※40※ |
40 |
40 |
|
Ambient temperature |
℃ |
‑15~+55 |
‑15~+55 |
‑15~+55 |
‑15~+55 |
|
Altitude above sea level |
m |
2000 |
2000 |
2000 |
2000 |
Product Features
- Visible break effectively ensures personnel safety during routine maintenance and troubleshooting.
- Hot-dip galvanized steel frame and high-grade anti-pollution insulators adapt to harsh outdoor environments.
- Silver-plated contacts with stainless steel springs deliver excellent conductivity.
- Auxiliary arcing contacts reduce erosion and extend electrical life.
- Supports manual or electric operation with precise position locking.
- Capable of withstanding high peak fault currents with outstanding stability.
- Customization service available.
- Long mechanical service life. Simple structure and flexible installation.
Our Service
- Inquiry reply within 24 hours.
- Video call available for technical discussion.
- Customization service offered.
- Complete test reports and certifications provided.
- Optimal factory price and after-sales service.
- Seaworthy wooden cases with internal bracing to prevent damage during transit.
- FOB port: Ningbo
Our Advantage
- Over 20 years of manufacturing experience in high-voltage equipment with mature export track record, supplying various engineering projects across Asia, the Middle East, Europe and the Americas.
- Full set of certifications including ISO, IEC, CE and TUV, and complete test reports are available.
- Flexible customization supported.
- Our professional engineering team can deliver tailored solutions for specific project requirements.
- Reliable delivery.
- Factory direct supply with competitive pricing and guaranteed quality.
- Technical support via email, phone or video call, with response within 24 hours.
Packaging and Shipping
- Standard export wooden cases, seaworthy and stackable.
- Internal foam padding and wooden bracing to prevent movement during transit.
- Each disconnecting switch individually wrapped with moisture-proof film. OEM labeling available.
- Product model, gross weight, dimensions and handling marks can be printed on the outer case to ensure secure stowage and balanced weight distribution.
- Fumigation-free wooden cases are available.
FAQ
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