IEC Standard & CE Certified

CE Certified Medium Voltage Panelboards Manufacturer & Exporter

Providing high-safety smart switchgear, dry-air gas insulated ring main units, and custom power distribution systems for complex electrical infrastructures globally.

Engineered Power Solutions & Medium Voltage Equipment

Explore Zago Electric's specialized product portfolio, integrating intelligent controls, eco-friendly insulating mediums, and rugged cabinet architectures for industrial and commercial grids.

Sodium Ion Battery Energy Storage System
Sodium Ion Battery Energy Storage System (BESS) 100kwh off-Grid Solar Power System with IP65 Protection and 3000 Cycles

High-capacity next-generation BESS offering enhanced thermal safety and long service life for decentralized microgrids.

48VDC Hybrid Solar Power System
48VDC Hybrid Solar DC Power System with IP55 Protection Degree

Outdoor rated telecom-grade hybrid solar power solution with IP55 protection for harsh environmental conditions.

Intelligent Power Switchgear
Intelligent Power Switchgear, Mv Withdrawable Panel with Predictive Maintenance Capabilities

Equipped with temperature, partial discharge, and mechanical life sensors for real-time risk assessment.

Gck/Mns Distribution Board
Gck/Mns Distribution Board Armored Movable Power Capacitor Bank Metal Clad Withdrawable AC Low Voltage Switchgear for Electric Transformer Substation

Designed for high-reliability reactive power compensation in substations and heavy industrial environments.

Waterproof Electrical Cabinet
Waterproof Electrical Cabinet for PV Power and Charging Systems

Robust outdoor weather protection tailored for commercial PV plants, charging stations, and battery racks.

Vmc855 CNC Machining Center
Vmc855 CNC Machining Center

High-precision internal machinery enabling custom sheet metal fabrication for panels and copper busbar routing.

Medium Voltage Ring Main Unit
Toonice 12kv 24kv 36kv Medium Voltage High Voltage Ring Main Unit Sf6 Gas Insulated Switchgear Gis

Gas-insulated ring main unit (RMU) offering compact footprint and maintenance-free operation under 12-36kV.

Indoor Dry Air Gas Insulated Switchgear
Indoor Environment-Friendly 11kv 12kv Dry Air C-Gis Gas-Insulated Switchgear

Eco-friendly C-GIS utilizing pressurized dry air instead of SF6 greenhouse gas, reducing compliance costs.

Dongguan Zago Electric Co., Ltd.

A Modern Hub of Power Distribution Engineering

Established in 2011 and located in Dongguan, Guangdong Province, China, Zago Electric operates a modern manufacturing facility covering more than 12,000 square meters and employs over 220 skilled professionals. The company combines research and development, electrical engineering, precision manufacturing, quality assurance, and technical support to deliver reliable power distribution equipment for diverse industries.

Zago Electric offers a comprehensive portfolio of electrical products, including low-voltage switchgear, medium-voltage switchgear, power distribution panels, motor control centers, distribution boards, intelligent electrical control systems, and customized power management solutions. These products are widely used in manufacturing plants, commercial buildings, renewable energy projects, transportation infrastructure, data centers, utility networks, and industrial automation systems.

We place a strong emphasis on product safety, operational reliability, and compliance with international industry standards. Advanced sheet metal fabrication equipment, automated assembly lines, precision testing instruments, and comprehensive quality control procedures are implemented throughout the production process to ensure consistent product performance and long-term service reliability.

Zago Electric Factory Floor
12k+
SQM Plant Area
220+
Skilled Workers
12+
Years Experience
CE/ISO
Accreditation

Global Trends in Medium Voltage Switchgear & Panelboards

The transition toward decentralized grids, eco-responsibility, and IoT diagnostics is reshaping modern electrical distribution equipment specifications.

1. Decarbonization & SF6-Free Technologies

Global environmental protocols are phasing out Sulfur Hexafluoride (SF6) due to its high global warming potential. Zago Electric's R&D focuses on "Dry Air" insulation, vacuum interrupters, and alternative green gases that provide superior dielectric properties without environmental hazards.

2. IoT-Enabled Predictive Maintenance

Downtime in modern industrial networks is costly. Integrating intelligent sensors for thermal mapping, localized partial discharge tracking, and operating mechanism telemetry allows our switchgear panels to communicate maintenance requirements before critical failure occurs.

3. Higher Modular Integration

Industrial clients require fast deployment. The move toward prefabricated containerized switchgear, withdrawable structures, and compact GIS configurations speeds up field erection times and allows for easy system expansion or refurbishment.

Copper Busbar Processing & Assembly Line
Strategic Manufacturing

The Strategic Advantage of China-Based Switchgear Manufacturing

Purchasing medium-voltage equipment from Guangdong Province places distributors and EPC contractors at the heart of the world’s most advanced electrical component supply ecosystem.

• Unmatched Supply Chain Integration: Within a 100km radius of Dongguan, we access premium copper refineries, specialized solid insulation suppliers, epoxy casting mold makers, and high-performance circuit breaker components. This proximity keeps production lead times tight and component sourcing highly reliable.

• Precision CNC Machining & Advanced Sheet Metal: Utilizing in-house equipment like the VMC855 CNC Machining Center, Zago Electric constructs enclosures with absolute dimensional tolerances. This ensures internal mechanical locks, switch interlocking structures, and slide rails operate smoothly over decades.

• Cost Engineering & Global Compliance: We leverage efficient production methodologies to offer competitive pricing without sacrificing adherence to IEC 62271, IEEE, and CE safety standards. This balance translates to improved ROI for international grid modernization tenders.

Macro-Level Power Distribution Solutions

Tailored electrical infrastructure packages that meet the demanding operational dynamics of major industries.

Renewable Energy & Battery Storage Integration

Wind farms, solar arrays (PV systems), and BESS (Battery Energy Storage Systems) require switchgear capable of managing bi-directional power flows and transient voltages. Zago offers specialized waterproof cabinets, smart ring main units, and MV panels with integrated protection relays designed to handle system harmonics and grid synchronization.

Mission-Critical Data Center Distribution

Continuous uptime requires reliable distribution boards and switchgear. Our MV panelboards feature dual-source automatic transfer systems (ATS), fast-acting arc fault protection, and comprehensive SCADA/Modbus integrations. This allows facility managers to monitor and manage electrical status in real-time, preventing unplanned outages.

Heavy Industrial & Infrastructure Substations

Mining operations, petrochemical processing plants, and railway grids run under harsh operating environments. Zago Electric's metal-clad switchgear and withdrawable circuit breakers provide high short-circuit withstand capabilities, IP54/IP55 ingress protections, and mechanical safety interlocks to ensure safe operation under demanding conditions.

Medium Voltage Panelboards Technical Parameters

Comprehensive engineering matrix detailing the design parameters and compliance criteria for our standard and custom MV switchgear systems.

Technical Characteristics 12kV GIS / AIS System 24kV Compact RMU 40.5kV Air-Insulated Switchgear
Rated Voltage (Ur) 12 kV 24 kV 40.5 kV
Rated Power-Frequency Withstand Voltage 28 / 42 kV (1 min) 50 / 65 kV (1 min) 95 / 115 kV (1 min)
Rated Lightning Impulse Withstand Voltage (Up) 75 / 85 kV 125 / 145 kV 185 / 215 kV
Rated Frequency (fr) 50 / 60 Hz 50 / 60 Hz 50 / 60 Hz
Rated Normal Current (Ir) 630 A to 2500 A 630 A to 1250 A 1250 A to 3150 A
Rated Short-Time Withstand Current (Ik) 20 / 25 / 31.5 kA (3s) 20 / 25 kA (3s) 31.5 / 40 kA (4s)
Internal Arc Classification (IAC) AFLR 25kA/1s AFL 20kA/1s AFLR 31.5kA/1s
IP Protection Class IP4X (Enclosure), IP67 (Gas Chamber) IP3X to IP54 (Customizable) IP4X / IP54 (Outdoor Enclosures)
Standard Certification IEC 62271-200, CE, ISO9001 IEC 62271-200, CE, ISO14001 IEC 62271-200, GB 3906, CE

Heavy-Duty Medium & Low Voltage Grid Equipment

Engineered for high current loads, grid protections, and extreme ambient operations. Explore our secondary list of core sub-systems and testing systems.

Air Insulated ABB Switchgear
3150A 40.5kv Air Insulated ABB Sf6 HD4 Medium Voltage Switchgear with Forced Air Cooling

Designed for high current capabilities up to 3150A, featuring active thermal dissipation and robust protection.

Dry Air Insulation GIS
Dry Air Insulation Factory Direct Hv Live-Tank Gis Switchgear Sf6 Gas Insulated

Optimized for transmission substation setups with live-tank reliability and gas insulation versatility.

Gas Insulated RMU 24kv
24kv Environmentally Friendly Gas-Insulated Ring Main Unit

Compact layout for urban distribution networks, providing gas insulation for harsh ambient humidity protection.

Intelligent Double Gas Tank Switchgear
Intelligent Control and Protection System Xgnq-40.5 Double Gas Tank Switchgear

Twin tank physical isolation for maximum security and continuous power supply redundancy.

Industrial Solar Energy Power System
Full Protection Safe Operation Solar Energy Power System for Industry

Turnkey industrial solar integration offering overcurrent, lightning surge, and thermal hazard prevention.

Low Voltage Switchgear Control Panel
220V 380V Modular Low Voltage Switchgear Electrical Control Panel for Power Supply

Designed for downstream power management, featuring high drawer interchangeability and safety.

Primary Current Injection Test System
5000A Primary Current Injection Heat-Run Test System for Switchgear Test

In-house and on-site testing hardware to verify busbar temperature rises and overcurrent trip characteristics.

Outdoor PLC Control Panel
Gzy1217 Custom Outdoor Weatherproof Electrical Control PLC Panel Wiring Installation Program

Weatherproof automation and telemetry interface built for remote microgrid and utility distribution stations.

Dongguan Zago Quality Assurance & Production Facilities

Take a virtual tour of our 12,000 sqm production floors, featuring advanced machinery, copper busbar processing, automated wiring, and high-voltage test bays.

Procurement Insights

Meeting Global Procurement Specifications

International engineering firms and utility companies demand strict compliance with international standards, long-term product support, and manufacturing transparency. We design our customer journey around these priorities:

1. Comprehensive Certification: Every MV panelboard exported is verified to comply with standard CE certifications, conforming to IEC 62271-200. This ensures smooth regulatory approval and utility grid connections across Europe, Africa, Latin America, and Southeast Asia.

2. Detailed Type Test Reports: We provide full factory test documentation, including temperature rise limits, dielectric tests, short-time withstand current tests, mechanical operation verifications, and IP rating verifications.

3. Advanced OEM/ODM Engineering: Our engineering team designs custom busbar layouts, fits specified relay brands (such as ABB, Siemens, or Schneider), and designs enclosures to match specific dimensions for retrofit projects.

Engineers reviewing electrical design schematics

Frequently Asked Questions

Direct answers from our engineering experts regarding selection, implementation, standards, and delivery of medium-voltage switchgear.

What are the key benefits of Dry Air Gas Insulated Switchgear (C-GIS) compared to SF6?
Dry Air insulated switchgear replaces sulfur hexafluoride (SF6)—a potent greenhouse gas—with pressurized dry air. This removes the risk of toxic gas leakage and complies with strict environmental regulations like EU F-Gas directives. The maintenance requirements are simplified, and the system does not require specialized end-of-life gas recycling processes, reducing lifetime operational costs.
How does Zago Electric perform primary current injection testing on custom switchgear?
We utilize our in-house 5000A Primary Current Injection Heat-Run Test System. This hardware injects high current directly through the switchgear's primary circuit breaker and busbars. It allows us to monitor temperature rise under full-load conditions, verify CT ratios, test protection relay curves, and confirm mechanical breaker performance prior to shipping.
Can Zago customize control systems to integrate with existing SCADA systems?
Yes. Our custom PLC panelboard divisions (such as the Gzy1217 program) are designed to integrate with plant SCADA systems. We support communication protocols like Modbus RTU/TCP, IEC 61850, and Profibus. This enables remote telemetry monitoring of breaker states, grid measurements, switch statuses, and alarm systems.
What type of mechanical and electrical safety interlocks are standard on your panels?
We implement mechanical locks to prevent incorrect operations. Key interlocking features include: preventing the isolation switch from opening or closing under load, preventing the earthing switch from closing when the circuit breaker is closed, and preventing the breaker from being racked in or out when it is in the ON position.
How do you protect your MV panelboards during sea freight and international transport?
We use specialized vacuum sealing and heavy-duty moisture-proof packaging for all exports. The panels are wrapped in anti-static, moisture-barrier vacuum foil, packed with heavy desiccant, and housed in customized heat-treated wooden crates conforming to ISPM-15. This prevents corrosion of copper components and high-voltage contacts during sea transit.