Zhejiang Donghua Electrical Appliance Co., Ltd.
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⚡ OEM & Industrial Power Solutions

OEM Bar Type Isolation Switch Manufacturer & Factories Serving the Uzbekistan Market

Precision-engineered low & medium voltage busbar switchgear, fuse-switch disconnectors, and isolation apparatus tailored for Uzbekistan's modernizing electrical grid, Tashkent industrial hubs, and Central Asian renewable utility infrastructures.

Featured Engineering Assemblies

High-Performance Isolation & Metering Products for Uzbekistan

Selected low-voltage and medium-voltage switchgear components certified under international IEC standards and customized for Central Asian grid stability.

HP QP Series Manual Operated Isolation Disconnector Switch AC400V 3P 4P Uzbekistan
HP (QP) Series Manual Operated Isolation Disconnector Switch AC400V 3P 4P Pure Copper Contact for Uzbekistan LV Cabinets
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HR6 Series Fuse-Switch Disconnector 3P 160-630A Uzbekistan Distribution
HR6 Series Fuse-Switch Disconnector 3P 160-630A Manual Load Isolation Switch With Fuse Protection for Substation Feeders
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LMK1 BH 0.66 Current Transformer Bus Bar ABS Shell Uzbekistan Metering
LMK1(BH)-0.66 Current Transformer, Bus Bar ABS Flame-Retardant Shell for Energy Metering & Monitoring
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XD1 Type Current Limiting Reactor 0.4kV System Uzbekistan
XD1 Type Current Limiting Reactor 0.4kV System, Single Layer & Tightly Wound Type for Capacitor Banks
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Central Asian Market Dynamics

Uzbekistan Electrical Infrastructure Modernization & Industrial Demand

Strategic deployment of robust bar type isolation switches across the Republic of Uzbekistan's expanding power distribution grids, mining complexes, and renewable energy corridors.

The Republic of Uzbekistan is undergoing one of the most dynamic economic and infrastructural transformations across Central Asia. Under the national "Uzbekistan 2030" development roadmap, the government and the Ministry of Energy of the Republic of Uzbekistan (Minenergo), together with National Electric Grid of Uzbekistan (JSC "NEGU") and Regional Electric Power Networks (JSC "HET"), are systematically overhauling the national power transmission and low-voltage distribution grids. Rapid urbanization in Tashkent, Samarkand, Bukhara, and the densely populated Fergana Valley has generated substantial demand for standardized, safe, and highly durable switchgear components, notably bar type isolation switches (strip-type fuse disconnectors and vertical busbar disconnectors).

Uzbekistan’s climatic profile presents unique technical requirements for power distribution hardware. With extreme continental weather conditions ranging from searing summer temperatures exceeding +45°C in the Kyzylkum desert to sub-zero winters of -25°C in the northern provinces, low-voltage electrical distribution equipment must demonstrate exceptional thermal stability, outstanding flame retardancy, and superior arc-quenching capabilities. Bar-type isolation switches mounted directly onto standardized 185mm center-to-center busbar systems have become the gold standard for modern compact substations (KTP), industrial motor control centers (MCC), and cable distribution cabinets (CDC) across Uzbek commercial and industrial installations.

185mm
Standard Busbar Grid Compatibility
AC 400V/690V
Operational Voltage Rating
160A - 630A
Fuse Switch Isolation Range
IP30 / IP40
Operator Safety Protection

⚡ Grid Modernization

Replacing legacy Soviet-era distribution boards with compact, touch-proof vertical bar-type switch disconnectors to drastically reduce power losses and eliminate accidental electrical contact in urban Tashkent transformation substations.

🏭 Heavy Metallurgy & Mining

Delivering high-breaking capacity disconnectors to Almalyk Mining and Metallurgical Complex (AMMC) and Navoi Mining and Metallurgical Complex (NMMC) where severe continuous loads and harmonic environments demand ultra-reliable copper contact blades.

☀️ Solar PV Balance-of-Plant

Supporting massive utility-scale solar farms in Navoi, Samarkand, and Surkhandarya with DC and AC isolation units designed to isolate string inverters and LV collection boards under intensive solar irradiance.

Engineering Excellence

Technical Specification & Design Architecture for Uzbek Applications

Engineered to comply with IEC/EN 60947-3, GOST standards, and stringent international safety norms.

Our OEM bar type isolation switch range is designed specifically for modular installation in low-voltage distribution pillars, transformer substations, and industrial power distribution boards. Unlike conventional rotary disconnectors, bar type (vertical strip) fuse disconnectors integrate three-phase switching and NH-type knife fuse-links in a unified vertical structure that mounts directly over three-phase busbars spaced at 185mm pitch. This architecture saves up to 60% of lateral cabinet space, making it ideal for compact kiosk substations throughout Uzbekistan's residential and commercial development projects.

Key technical design characteristics include:

01

Pure Electrolytic Copper Conductors & Silver Plating

Contacts and busbar clamps are forged from 99.9% pure electrolytic copper with electro-silver plating, preventing contact oxidation, lowering resistance, and preventing thermal hotspots during heavy peak load cycles typical in summer air-conditioning spikes.

02

Reinforced Glass-Fiber Polyamide Enclosure

Thermoplastic and thermoset housings exhibit class-leading mechanical rigidity, dielectric strength, and UL 94-V0 flame retardancy, enduring ambient temperatures from -40°C to +120°C without mechanical warping or degradation.

03

Advanced Arc-Extinguishing Chutes & Phase Barriers

Equipped with segmented de-ionizing arc splitter plates to immediately cool and extinguish electric arcs during live load breaking operations (AC-22B / AC-23B duty), guaranteeing maximum operator safety and equipment longevity.

04

Integrated Current Transformer & Monitoring Adaptability

Specially customized bases allow seamless integration of open-type or busbar-mounted current transformers (such as our LMK1-BH and LMZK series) to interface with Uzbekistan’s automated metering infrastructure (ASKUE smart metering programs).

Manufacturing Pedigree Since 1998

COMPANY PROFILE

Zhejiang Donghua Electrical Appliance Co., Ltd. - Driving Electrical Innovation and Global OEM Quality

Zhejiang Donghua Electrical Appliance Co., Ltd. was founded in 1998. It is a professional manufacturer specializing in the design, manufacturing, and sales of high and low voltage electrical appliances and switching power supply. It produces many series of products including isolation switch, fuse switch disconnector, isolation switch fuse group, high and low voltage instrument transformer, high voltage metering box, switching power supply, and more. The company is located in the Economic Development Zone of Yueqing City, Wenzhou, with a factory area of 27,000 square meters. It currently has over 1,300 sets of various design, manufacturing, and testing equipments, and possesses independent product design, manufacturing, testing, and sales capabilities as well as comprehensive modern enterprise management experience.

Our Strategic Pillars

WHY CHOOSE US

01 /

Business Philosophy

The company always adheres to the management policy of "creating industry brands, creating professional quality, showcasing employee strengths, thinking for customers, abiding by laws and regulations, focusing on prevention, continuous improvement, and health and safety" and the business philosophy of "creating value for customers, seeking development for the enterprise, and taking responsibility for society" to guide the company's operation and production. The company is an ISO9001/ISO14001/ISO45001 quality/environment/occupational health and safety three systems certified enterprise, and its production products have CB, TUV, CE, UL, CSA, KC, CCC and other certifications.

02 /

Experience & Innovation

The company is a national high-tech enterprise, a small and medium-sized scientific and technological enterprise in Zhejiang Province, and an enterprise technology has research and development center in Wenzhou City. It has an excellent design team, and its products have 57 national technology patents. It can design various products for customers according to their needs. The company has perfect manufacturing technology, equipment, professional management methods and personnel, more than 20 years of manufacturing experience, perfect testing equipment and laboratory, which can effectively guarantee and produce high-quality products.

03 /

Professional Technical Support

As a professionally manufactured brand, the products have been sold well in various parts of China, as well as in countries such as Asia, Africa, Europe, the United States, and Southeast Asia. It has become an important supporting product for domestic large and medium-sized enterprises, major engineering projects, and national power grids, and has been favored and praised by foreign customers for many years. The company will always provide you with professional technical support and fast after-sales service, and become your trusted partner.

Advanced Manufacturing Base

FACTORY TOUR

State-of-the-art Yueqing manufacturing facilities with 27,000 m² of specialized production, automated stamping, injection molding, and testing labs.

Zhejiang Donghua Factory Production Floor 1
Zhejiang Donghua Factory Production Floor 2
Zhejiang Donghua Factory Production Floor 3
Zhejiang Donghua High Precision Assembly Line
Zhejiang Donghua Switchgear Component Testing
Zhejiang Donghua Automatic Stamping Workshop
Zhejiang Donghua Mold Fabrication Workshop
Zhejiang Donghua Quality Control & Testing Center
Zhejiang Donghua Finished Goods Inspection
Zhejiang Donghua Isolation Switch Packaging Facility
Zhejiang Donghua High Voltage Laboratory
Zhejiang Donghua Transformer Coil Winding Machine
Comprehensive Product Portfolio

Complete High & Low Voltage Switchgear Assemblies for Uzbekistan Projects

Full suite of isolation switches, vacuum load switches, earthing apparatus, reactors, and current transformers engineered for international EPC contractors and local Uzbek distribution networks.

XD1 type current limiting reactor,0.4kV system,Single Layer & Tightly Wound Type
XD1 type current limiting reactor, 0.4kV system, Single Layer & Tightly Wound Type for Harmonics Mitigation
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LMZK-10-3 10kV Open-Type Current Transformer for Gas-Insulated Switchgear
LMZK-10-3 10kV Open-Type Current Transformer Dedicated to Gas-Insulated Switchgear (GIS) in Central Asia
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LMK1(BH)-0.66 current transformer,bus bar ABS shell,Measurement of energy
LMK1(BH)-0.66 Current Transformer, Bus Bar ABS Shell for Precise Measurement of Energy & Power Control
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HP (QP) Series Manual Operated Isolation Disconnector Switch AC400V 3P 4P Load Break Switch Pure Copper Contact For LV Cabinet OEM Available
HP (QP) Series Manual Operated Isolation Disconnector Switch AC400V 3P 4P Load Break Switch Pure Copper Contact
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JN22-40.5-31.5 Indoor High-Voltage Earthing Switch
JN22-40.5-31.5 Indoor High-Voltage Earthing Switch for Uzbek 35kV/40.5kV Transformer Substation Protection
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HR6 Series Fuse-Switch Disconnector 3P 160-630A Manual Load Isolation Switch With Fuse Protection
HR6 Series Fuse-Switch Disconnector 3P 160-630A Manual Load Isolation Switch With High Breaking Fuse Protection
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FZN25-12D Indoor High-Voltage Load Switch-Fuse Combination Unit
FZN25-12D Indoor High-Voltage Load Switch-Fuse Combination Unit for 10kV-12kV Ring Main Units (RMU)
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FZW28-12 Outdoor AC High-Voltage Sectionalizer Vacuum Load Switch
FZW28-12 Outdoor AC High-Voltage Sectionalizer (Recloser) Vacuum Load Switch for Overhead Feeder Automation
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Tailored OEM & ODM Services

End-to-End Manufacturing Customization for Uzbekistan Partners

From custom terminal spacing to bespoke GOST/IEC labeling, we empower panel builders and electrical wholesalers across Central Asia.

As a seasoned manufacturer with over 25 years of engineering heritage and 57 national patents, Zhejiang Donghua Electrical Appliance Co., Ltd. provides comprehensive OEM/ODM customization services to meet the specific technical tender parameters of Uzbekistan's major energy authorities and private project developers:

🔧 Custom Terminal Clamping

We supply diverse terminal connection formats, including V-type clamps, prism terminals, and M8/M10/M12 bolt connections suitable for sector-shaped aluminum cables and multi-core copper bus connections utilized in Uzbek switchboard fabrications.

🛡️ Enhanced Ingress Protection

Optional transparent terminal shrouds, inter-phase partition barriers, and padlockable parking positions ensure compliance with high personal safety requirements during live line inspection and maintenance.

📦 Rapid Logistics to Central Asia

Streamlined rail and road freight logistics through the China-Kyrgyzstan-Uzbekistan transport corridors, offering rapid dispatch times directly to Tashkent dry ports, Samarkand, and regional distribution warehouses.

Direct Engineering Consultation for Uzbekistan Projects

Whether you are an electrical panel builder in Tashkent, an EPC contractor constructing utility substations in Bukhara, or an equipment importer serving industrial facilities across the Fergana Valley, our dedicated international technical team is ready to provide 2D/3D CAD drawings, full type test certificates, customized samples, and competitive OEM factory pricing.