Dgg Outdoor Single Phase Medium/High Voltage Air Load Break Isolator/Isolating Disconnect Switch for Power Distribution

• Customization: Available
• Type: High-voltage
• Structure: Double-column Disconnector
• Model NO.: (H)GWH9-12
• Installation: Outdoor High-voltage
• Operation: Electric
• Grounding Mode: Grounding
• Movement Mode: Vertical Rotary Type
• Structure of Operating: Electric
• Certification: ISO, CE, ISO9001
• Rated Frequency: 50Hz
• Rated Current: 630/1250A
• Rated Voltage: 12kv
• Pollution Level: E-Level
• Transport Package: Export Box
• Trademark: DGG/ODM/OEM
• Origin: China
• HS Code: 8504311000
• Production Capacity: 100000PCS/Year
• Package Size: 80.00cm * 25.00cm * 45.00cm
• Package Gross Weight: 50.000kg

Product Description

0.38kV-123kV Power Transmission & Distribution Equipment Supplier
          
Get factory-direct pricing.
Request a quote for your project.

Supplying current transformers, voltage transformers, surge arresters, fuse cutouts, disconnect switches, switchgear, circuit breakers, and related power distribution equipment.

 

Fast response from inquiry to technical confirmation.

Supported by an international sales team and 50+ experienced engineers.

Our team supports product selection, technical confirmation, and project-based solution matching.

Proven Project Experience in Power Distribution
DGG Power has supplied products for domestic and overseas power distribution projects, including utility, substation, and EPC-related applications.

Partial Project References:
DD1/P&D/ICB/2025/028/D
CEB SPECIFICATION 082:2019
DD4/P&D/ICB/2024/010/D
CEB/AGM(DD3)/P&D/ICB/2025/25/BPC
TENDER Y103092
NO-DIS-MA-2205
NO-DIS-MA-6003
NO-DIS-MA-7006
NO-DIS-MA-7007TENDER FOR THE

...
Project reference documents and technical files are available upon request.

Contact us to discuss your project requirements.

(H)GW-12 Series

Outdoor High Voltage AC Isolation Switch
 

The (H)GW9-12 series outdoor high-voltage AC single-phase isolation switch (hereinafter referred to as "isolation switch") is used for connecing 10kV lines with voltage and without load, as well as for electrical isolation of high-votage busbars, circuit breakers and other electrical equipment under maintenance from live high-voltage lines.

The isolation switch complies with technical standards such as GB/T 1985-2014 "High voltage AC isolation switches and groundingswitches" and DL/T 486-2010 "Hiah voltage AC
isolation switches and grounding switches".

This outdoor disconnect switch is designed for medium and high voltage distribution lines, substations and outdoor power equipment. It provides a visible isolation point for maintenance, inspection and circuit sectionalizing. The two-column insulator structure is suitable for outdoor electrical isolation in power distribution systems.

Project		Unit	Technical parameter
Rated frequency		Hz	50
Rated voltage		kV	12
Rated current		A	630(1250)
Rated short-term withstand current and duration		kA/s	20(25)/4
Rated peak withstand current		kA	50(63)
Rated short-termpower frequency withstand voltage	Interphase and ground (dry test)	kV/min	42/1
	Fracture surface (dry test)		48/1
	Interphase and ground (wet test)		30/1
	Fracture surface (wet test)		36/1
Rated lightning impulse withstand voltage	Interphase and ground	kV	75
	Fracture surface		85
Loop resistance		μ Ω	≤ 80
Mechanical lifespan		Times	3000
Pollution level			e-Level
Creepage distance		mm	≥372

Note: If the parameters requested by the user are beyond the scope of the above table, they can be determined after consutaion with our company.

 

 

Outline & Installation Dimensions
Denggao Electric Co., Ltd.

 

DGG Isolation Switch Series Products
(Simply let us know what you need, and we'll assist you in selecting the right model.)

 

DGG Other Products
Denggao Electric Co., Ltd.

 

 

Why Choose DGG

Denggao Electric Co., Ltd.

Project-based supply experience for power distribution and substation applications.

IEC type test report support for selected models, including KEMA and TÜV reports.

Engineering support for product selection, parameter confirmation, and technical documents.

In-house production and testing capabilities for stable quality and delivery.

Customer Visit & Project Communication

We welcome customers and project partners to visit DGG Power for factory inspection, product discussion, and technical communication.

During the visit, our sales and engineering teams can support product selection, parameter confirmation, sample review, and project requirement discussion.

This helps both sides improve communication efficiency and move from inquiry to practical project confirmation.

 

1. Manufacturing Experience: Years of experience in power transmission and distribution equipment manufacturing.
2. In-House Production Capability: Equipped with production lines for instrument transformers, surge arresters, fuse cutouts, circuit breakers, disconnect switches, switchgear, and related products.
3. Experienced Workforce: Our skilled workers each have over 10 years of experience.  
4. Factory-Direct Supply: Direct factory support for distributors, contractors, utilities, and project buyers.
 

DGG Power has in-house laboratory facilities to support routine testing, product verification, and technical data collection.
These testing capabilities help us check key product performance, support technical confirmation, and provide reliable data for project requirements.
 

DGG's Cooperative Partner
Denggao Electric Co., Ltd.

DGG Projects
Denggao Electric Co., Ltd.

 

 

DGG's Certifications & Test Reports
Denggao Electric Co., Ltd.

 

Note:If you need more information about DGG's certificates & test reports,please contact us.
 

Get Project Support Easily

 

Send us your project requirements and our team will help you move from inquiry to technical confirmation.

1.Tell Us What You Need:
Please share the product type, rated voltage, rated current, quantity, application environment, drawings, or technical specifications if available.

2. Get Technical Confirmation & Quotation
Our sales and engineering teams will review your requirements and provide product selection support, technical confirmation, and quotation details.

3. Confirm the Order & Delivery Plan
After technical and commercial confirmation, we will arrange production, inspection, packaging, and export delivery according to the order requirements.

 

 

Your Project Deserves Careful Support

Whether you are sourcing a single product or working on a complete project,
DGG Power is ready to help you review the requirements,
match suitable models, and prepare the documents you need.

Send us your specifications, drawings, or project details.
Our team will help you check the next step.

Let's build a reliable solution for your power project.