Overview
The XL-21 New Type Power Distribution Cabinet is a modernized low-voltage power distribution solution designed for industrial, commercial, and infrastructure applications. This cabinet is engineered to offer high safety, reliability, and operational efficiency, making it an ideal choice for controlling and distributing power in various electrical systems.
The XL-21 power distribution cabinet meets the requirements of GB 7251.1 and IEC 60439-1, ensuring compliance with international safety and performance standards. It is built with high-quality insulation materials and features a compact, modular design that enhances usability, durability, and protection against environmental factors.
Product Features
- Standard Compliance: Fully meets the GB 7251.1 and IEC 60439-1 standards for low-voltage switchgear and controlgear.
- Advanced Circuit Protection: Equipped with a molded case circuit breaker (MCCB) that features a high breaking capacity, short flying arc design, and overload/short-circuit protection.
- Multiple Safety Functions: Integrated overload, short-circuit, undervoltage, and phase failure protection, ensuring a stable power supply for critical equipment.
- Flexible Control Options: Supports local and remote control, making it suitable for automated power management systems.
- Robust Construction: The cabinet frame is made of high-strength galvanized steel, providing excellent corrosion resistance and mechanical strength.
- User-Friendly Design: Designed for easy maintenance, with clear wiring layouts, removable panels, and well-organized cable management.
Technical Parameters
| Number | Name | Unit | Specification |
|---|---|---|---|
| 1 | Main Circuit Rated Voltage | V | AC:380 |
| 2 | Auxiliary Circuit Rated Voltage | V | AC:220, 380 |
| 3 | Rated Frequency | Hz | 50 |
| 4 | Rated Insulation Voltage | V | 660 |
| 5 | Rated Current | A | ≤800A |
Ambient Conditions
- Temperature Range: -5°C to +40°C, with an average temperature within 24 hours not exceeding +35°C.
- Altitude: Not more than 2000m above sea level.
- Humidity Tolerance: Maximum 50% relative humidity at +40°C, with allowances for higher humidity at lower temperatures (e.g., 90% at +20°C).
- Environmental Protection: Must be installed in an area free of severe vibration, shock, dust, or corrosive gases.
- Installation Inclination: No more than 5° from vertical.
Main Circuit Components
The XL-21 distribution cabinet supports various electrical components to ensure efficient power control and safety:
- Disconnecting Switches: QSA series, HR5 series.
- Disconnectors: QA and QP series.
- Fuses: RTO, NT00, etc.
- Circuit Breakers: DZ20, NM1, DZ47, NS, C45.
- Contactors: CJ20, B series, N series.
- Thermal Relays: JR20, JRS1, NR3 series.
- Transformers: LMZJ1-0.5, LMK1-0.66.
Installation Guidelines
- Pre-Installation Checks:
- Ensure the packaging is intact and undamaged.
- Inspect the product for defects and notify the supplier of any issues.
- Store in a dry and well-ventilated environment before installation.
- Installation Requirements:
- Use a base channel steel structure for mounting.
- Secure the cabinet with bolts and connections.
- Ensure the insulation resistance is not less than 1MΩ when using a 500V megohmmeter.
- Commissioning Steps:
- Verify that the main electrical components and auxiliary contacts are reliable.
- Confirm that the wiring configuration matches the schematic diagrams.
- Check that all protective devices are functioning correctly before putting the system into operation.
Precautions for Use
- Circuit Breaker Maintenance: After multiple switching operations, the contact surfaces of the circuit breaker may develop carbon deposits, increasing resistance. Regular cleaning and maintenance are required.
- Overload Protection: Ensure that the overload and short-circuit protection mechanisms are correctly set up.
- Remote Control System: If connected to an automated power management system, periodic calibration and software updates are recommended.
Ordering Information
To ensure you receive the correct XL-21 model for your application, please provide the following details when placing an order:
- Model Number: Including main circuit scheme number and auxiliary circuit scheme number.
- Main Circuit Diagram: Specify the power distribution plan and layout.
- Component List: Indicate the type of circuit breakers, contactors, and relays required.
- Color Selection: Default color is light camel gray, but custom options are available upon request.
- Special Requirements: If any non-standard configurations are required, they must be specified during ordering.
Application Scenarios
The XL-21 New Type Power Distribution Cabinet is suitable for a wide range of low-voltage power distribution systems, including:
- Industrial Facilities: Manufacturing plants, steel mills, and chemical processing industries.
- Commercial Buildings: Shopping malls, office towers, and large residential complexes.
- Infrastructure Projects: Airports, railway stations, and smart city grids.
- Renewable Energy Systems: Solar and wind power distribution networks.
- Data Centers & IT Hubs: Stable power supply for critical computing infrastructure.
The XL-21 New Type Power Distribution Cabinet is a state-of-the-art solution for low-voltage power management, designed to enhance efficiency, safety, and reliability. With its modular design, advanced circuit protection, and intelligent monitoring features, it is an ideal choice for various industrial, commercial, and infrastructure applications.
For technical support, pricing, and customization options, please contact us today.
