Electric Cabinet Power Distribution Board High Voltage Switchgear
| Customization: | Available |
|---|---|
| Type: | Power |
| Structure: | Fixed Board |
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Basic Info.
- Model NO.
- XL-21
- Certification
- ISO9001:2000, CCC
- Form
- All- packaged Type
- Operation Voltage
- Low Voltage
- Size
- 1 Uint
- Application Range
- High-rise Buildings
- Shell Material
- Steel Plate
- Shell Protection Grade
- IP55
- Brand
- Zhengxi
- Rated Voltage (V)
- 380
- Rated Insulation Voltage (V)
- 690
- Busbar Rated Short-Time Withstand Curren
- 30
- Current Peak Value (Ka)
- 63
- Transport Package
- Standard Package
- Specification
- 3000*2000*2500
- Trademark
- ZHENGXI or OEM
- Origin
- Zhejiang, China
Product Description
Introduction to XL-21 Low Voltage Power Distribution Cabinet
The XL-21 Low Voltage Power Distribution Cabinet by ZHENGXI is a highly efficient and reliable power control solution designed for various industrial applications. This cabinet is widely used in industrial and mining enterprises such as metallurgy, mining, petroleum, chemical industry, textiles, ports, and power stations. It serves as a three-phase, three-wire AC power distribution system, operating at a rated voltage of 400V or 660V, with a rated current capacity of up to 630A.



Designed for low-voltage power distribution systems, the XL-21 cabinet ensures stable power allocation, efficient energy management, and enhanced electrical safety. It is also suitable for controlling squirrel cage and wound-type motors, making it an indispensable asset for industries requiring precision power control and reliable distribution.
Key Features of the XL-21 Low Voltage Power Distribution Cabinet
- Robust Construction: Made from high-quality steel plate for enhanced durability.
- Flexible Installation: Can be independently installed with optional top access for wiring.
- Highly Adaptable: Available in various sizes to meet diverse industrial requirements.
- Advanced Safety Features: Includes busbar protection, short-circuit resistance, and insulation safety mechanisms.
- Easy Maintenance: Designed with a removable cover and adjustable mounting brackets for quick modifications and servicing.
| Items | Parameter |
|---|---|
| Rated Voltage (V) | 380 |
| Rated Insulation Voltage (V) | 690 |
| Rated Operating Current of Horizontal Busbar (A) | ≤630 |
| Busbar Rated Short-Time Withstand Current Effective Value (kA) | 30 |
| Busbar Rated Short-Time Withstand Current Peak Value (kA) | 63 |
XL-21 Low Voltage Power Distribution Cabinet Dimensions
| Model | Height (mm) | Width (mm) | Depth (mm) |
| XL-21-1 | 1680 | 600 | 400 |
| XL-21-2 | 1780 | 700 | 400 |
| XL-21-3 | 1880 | 700 | 400 |
| XL-21-4 | 1880 | 800 | 400 |
| XL-21-5 | 2080 | 800 | 550 |
Structural and Functional Overview
The XL-21 low voltage power distribution cabinet is categorized into two main types:
- P Type: Standard height variants (1700mm - 1800mm), offering compact design and efficient space utilization.
- M Type: Tall configurations (1900mm and above), equipped with top busbar access for enhanced electrical connectivity.
The XL-21 cabinet is constructed using precision cast adjustable door hinges, allowing the door to open beyond 135° for easy accessibility. It also features a well-ventilated design, ensuring efficient heat dissipation and system longevity.

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