Low Voltage distribution panel
The XL-21 Power Distribution Board is an indoor enclosed low-voltage distribution equipment specifically designed for power distribution, lighting distribution, and motor control in industrial and civil buildings. Constructed with high-quality steel plate, it features a compact structure, reliable operation, and easy installation and maintenance. It is suitable for three-phase power systems with AC 50Hz/60Hz and rated voltage up to 380V/660V, widely used in power plants, industrial and mining enterprises, and various building facilities.
Detailed Technical Specifications
Parameter Category | Technical Specifications |
Rated Characteristics | Rated Operational Voltage: 380V/660V AC |
Short-circuit Performance | Rated Short-time Withstand Current: 30kA/1s (RMS), some models up to 50kA/1s |
Protection Degree | IP30 (Standard), IP40 option available |
Enclosure Structure | Height: 1700mm, 1800mm, 1900mm |
Installation Methods | Wall-mounted floor installation, can also be installed away from the wall or wall-mounted (special request) |
Cable Entry/Exit | Bottom entry/bottom exit (Standard), Top entry/top exit, Top cover can be opened for cables or with busbar compartment added |
Compliance Standards | IEC 61439-1, GB 7251.1, CCC Certified |
Key Product Features
1.Robust and Reliable Construction
Enclosure made of high-quality cold-rolled steel plates bent and welded, offering high mechanical strength and durability.
Enclosed dust-proof design with a protection degree of IP30 or higher, effectively preventing foreign object entry and electric shock.
Surface treatment: Typically finished with powder coating, corrosion-resistant and aesthetically pleasing (standard color is usually RAL7035 light grey, subject to confirmation).
2.Flexible Electrical Configuration
Main busbar horizontally arranged at the top of the cabinet, using TMY hard copper bars.
Supports various electrical components: Can be equipped with isolation switches, circuit breakers (air circuit breakers), contactors, thermal relays, fuses, etc., to meet power distribution and motor control needs.
Rich single-line diagram schemes: Offers multiple standard scheme options or customizations, can be configured as feeder cabinets, motor control cabinets (e.g., direct-on-line, star-delta, soft-start), or dual power supply transfer cabinets.
Modular design: Internal mounting beams are adjustable, facilitating easy installation and maintenance of electrical components.
3.Safety and Convenience Design
Operating handle and display: Equipped with a knife switch operating handle (upper right side) or circuit breaker operating mechanism on the front; door can be fitted with voltmeters, ammeters, indicator lights, operation buttons, etc. for monitoring and control.
Door design: Single front door (left or right opening), wide opening angle (e.g., >135°). The interior becomes fully accessible when the door is opened, facilitating inspection and maintenance.
Comprehensive protection: Provides short-circuit, overload, overvoltage, undervoltage, and phase failure alarm protection functions.
Lifting and wiring: Lifting rings on the top for easy transportation and installation; bottom cable entry/exit with cable clamps for secure fixing.
4.Strong Adaptability
Environmental adaptability: Suitable for indoor environments with an ambient air temperature ranging from -5°C to +40°C, average temperature not exceeding +35°C within 24 hours, and altitude not exceeding 2000m.
Various installation and wiring methods: Meets different site layout requirements.
Multiple units can be combined: Facilitates easy expansion of distribution capacity.
Typical Applications
Industrial sector: Low-voltage distribution systems in power plants, substations, petroleum, chemical, metallurgical, machinery, mining industries and plants, serving as power distribution and motor control centers (MCC).
Civil and commercial buildings: Power and lighting distribution in high-rise buildings, real estate projects, hotels, and restaurants.
Infrastructure: Power distribution and control for public utilities such as water supply and drainage pump stations, water treatment plants.
Optional Configurations
Standard Type (P-Type): Enclosure height 1700mm or 1800mm, independent installation, top can be opened for cable entry/exit.
With Top Busbar Type (M-Type): Enclosure height 1900mm, top cover is removable for easy busbar installation and disassembly.
Special Environment Type: Higher protection degree (e.g., IP41, IP54) or anti-corrosion treatment available upon request.
Customized Solutions: Customization supported based on user's single-line diagrams, schematic diagrams, and specifications of electrical components
