Product Overview
The DXF low-voltage fixed-divided switchgear is a metal-enclosed, indoor, fixed-separated power distribution equipment designed for rated voltages up to 660V and rated frequencies of 50Hz or 60Hz. This switchgear features a modular, fully compartmentalized design with clear separation between busbar compartments, cable compartments, and functional unit compartments, ensuring high safety, reliability, and operational convenience.
The product complies with GB 7251, IEC 61439, and relevant international standards, offering flexible configuration options for various power distribution applications including incoming and outgoing feeder circuits. The fixed-divided construction provides cost-effective solutions with stable performance, making it particularly suitable for power distribution systems in industrial plants, commercial buildings, infrastructure projects, and residential complexes.

Key Features
1. Fixed-Divided Modular Structure
The switchgear adopts a fully compartmentalized fixed-divided design with separate compartments for the main busbar section, vertical busbar section, functional unit section, and cable termination section. Each compartment is isolated by metal partitions, effectively preventing fault propagation between adjacent sections. The modular architecture allows flexible combination of functional units and simplifies future expansion.
2. Robust & Durable Enclosure
The enclosure is constructed from high-strength, corrosion-resistant steel plates with electrostatic powder coating for superior durability. The rigid self-supporting frame structure ensures mechanical strength and stability. The enclosure protection rating reaches IP31 to IP54, providing reliable protection against dust and moisture ingress.
3. High Safety & Reliability
The switchgear incorporates comprehensive safety features including mechanical and electrical interlocks to prevent operational errors. The fixed-divided construction ensures reliable isolation between functional units. All live parts are enclosed within metal compartments with proper clearances, ensuring personnel safety during normal operation and maintenance. Internal arc fault protection channels direct fault gases to safe exhaust areas.
4. Flexible Main & Branch Busbar Systems
The main and branch busbars are made of high-conductivity electrolytic copper with silver-plated connections for low contact resistance. The busbar system supports rated currents from 630A to 6300A and short-time withstand currents up to 65kA/1s. Main busbar, neutral busbar, and protective earthing busbar are fully isolated within dedicated busbar compartments.
5. Versatile Functional Unit Configurations
The fixed-divided design accommodates various switchgear types including incoming and outgoing feeder units, motor control centers, and power factor correction units. Functional units are available with fixed-mounted circuit breakers, plug-in circuit breakers, or withdrawable mechanisms depending on application requirements. The compartmentalized arrangement allows each functional unit to be isolated independently.
6. Intelligent Monitoring & Communication
Optional smart monitoring systems with integrated digital meters, protection relays, and communication modules are available. Standard communication protocols including Modbus-RTU, Profibus, and IEC 61850 enable seamless integration with SCADA and building automation systems. Real-time monitoring of voltage, current, power, and energy consumption is supported.
7. User-Friendly Operation & Maintenance
The front-panel operation design provides easy access to control elements, indicating instruments, and circuit breaker operating handles. Clear labeling and position indicators simplify operation and status verification. The fixed-divided structure allows individual functional unit maintenance without interrupting adjacent circuits, reducing system downtime.

Technical Specifications
Rated Voltage: 400V, 690V
Rated Insulation Voltage: 660V, 1000V
Rated Frequency: 50Hz or 60Hz
Rated Current: Up to 6300A (main busbar), up to 3200A (vertical busbar)
Rated Short-Time Withstand Current: 30kA, 50kA, 65kA, 80kA, 100kA (1s)
Rated Peak Withstand Current: 63kA, 105kA, 143kA, 176kA, 220kA
Protection Rating: IP31, IP40, IP42, IP54 (customizable)
Enclosure Material: High-strength steel plate with electrostatic powder coating
Color: RAL7035 or RAL9003 (customizable)
Dimensions (Width × Depth × Height): 600mm/800mm/1000mm × 600mm/800mm/1000mm × 2200mm
Busbar Material: High-conductivity electrolytic copper
Connection Method: Fixed-mounted, plug-in, or withdrawable (customizable)
Cable Entry/Exit: Top, bottom, or side (customizable)
Operating Temperature: -25°C to +55°C
Altitude: Up to 1000m above sea level (customizable)

Applications
The DXF fixed-divided switchgear is widely used in industrial power distribution for manufacturing plants, mining facilities, petrochemical plants, and steel mills. It is also employed in commercial and public buildings including shopping malls, office towers, hotels, hospitals, and schools. Infrastructure projects such as airports, railway stations, subway systems, and ports rely on this switchgear for reliable low-voltage power distribution. Residential complexes and high-rise apartment buildings benefit from its compact footprint and modular design. Renewable energy applications including photovoltaic plants and wind farms utilize this switchgear for auxiliary power distribution. Utility companies and distribution substations also employ DXF switchgear for low-voltage power distribution and control.

Compliance Standards
GB 7251 Low-Voltage Switchgear and Controlgear Assemblies, IEC 61439-1 Low-Voltage Switchgear and Controlgear Assemblies – Part 1: General Rules, IEC 61439-2 Low-Voltage Switchgear and Controlgear Assemblies – Part 2: Power Switchgear and Controlgear Assemblies, IEC 60529 Degrees of Protection Provided by Enclosures (IP Code), and relevant national and local standards for low-voltage power distribution equipment.

Why Choose Us
Our manufacturing facilities employ advanced production equipment ensuring precision fabrication and consistent quality. We perform comprehensive quality control including electrical and mechanical verification, dielectric withstand tests, and protection relay calibration before delivery. Customization options are available for busbar configuration, functional unit layout, and protection schemes to meet specific project requirements. Our engineering team provides professional technical support for system design, installation, and commissioning. We offer competitive pricing through efficient manufacturing processes while maintaining high quality standards. Comprehensive after-sales service includes installation guidance, commissioning assistance, spare parts supply, and technical support. Our switchgear products have been installed in numerous projects worldwide with proven reliability and customer satisfaction.