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XL-21 low-voltage power distribution cabinet is suitable for power distribution in power plants and industrial and mining enterprises, which is used in three-phase four-wire or TN-S systems with AC voltage below 500 volts. XL-21 low-voltage power distribution box is installed against the wall and overhauled before the screen.
XL-21 low-voltage power distribution cabinet is closed, and its shell is bent with steel plate. The operating handle of knife switch is installed on the upper part of the right column in front of the cabinet, which can be used for switching power supply. A voltmeter is installed in front of the distribution box to indicate the bus voltage.
There is a door in front of the distribution box. After the door is opened, all equipment in the distribution box will be exposed for easy maintenance. This distribution box adopts self-designed components in China, which is characterized by compact structure, convenient maintenance and flexible combination of circuit schemes. In addition to air switch and fuse as short circuit protection, the distribution box is also equipped with contactor and thermal relay, and the front door of the box can be equipped with operation buttons and indicator lights.
After installation or maintenance, the power distribution box shall be inspected and tested as follows before being put into operation:
| Type | Rated current (A) | Melt rated current (A) | Remarks |
|---|---|---|---|
| HR3-400/34 | 400 | 150, 200, 250, 300, 350, 400 | No fuse when installing the isolating blade |
| Type | Rated current (A) | Secondary current (A) |
|---|---|---|
| LM-0.5 | 75, 100, 150, 200, 300, 600 | 5 |
| Type | Fuse protector | Melt rated current (A) |
|---|---|---|
| RL1-15 | 15 | 2, 4, 5, 6, 10, 15 |
| RL1-60 | 60 | 20, 25, 30, 35, 40, 50, 60 |
| RL1-100 | 100 | 30, 40, 50, 60, 80, 100 |
| RL1-200 | 200 | 80, 100, 120, 150, 200 |
| RL1-400 | 400 | 150, 200, 250, 300, 350, 400 |
| Type | Rated current (A) | Attraction coil voltage (V) |
|---|---|---|
| CJ10-10 | 10 | AC 110, 220, 380 |
| CJ10-20 | 20 | AC 110, 220, 380 |
| CJ10-40 | 40 | AC 110, 220, 380 |
| CJ10-80 | 80 | AC 110, 220, 380 |
| CJ10-150 | 150 | AC 110, 220, 380 |
The product portfolio comprises: Medium Voltage Solutions (intelligent metal-enclosed switchgear, SF6-free/eco-friendly ring main units, compact substations), Low Voltage Solutions (LV distribution boards, panelboards, busway systems), and Components (high-quality circuit breakers, protection relays, meters, transformers, voltage transformers, and current transformers).
The manufacturing and operations run under an ISO 9001 certified Quality Management System, and the products strictly conform to IEC and ISO standards.
Yes. The equipment is highly suitable for high-altitude, coastal (salt-fog), desert (high-temperature), and cold climate conditions. We provide specially treated materials, higher insulation ratings, heating/anti-condensation devices, and anti-corrosion coatings to ensure durability.
Pre-Sales: Free technical consultation, application analysis, schematic design, and BIM support if required.
During Project: Factory Acceptance Testing (FAT) for inspection, and professional export packaging.
After-Sales: Installation guidance documents, online commissioning support, operator training videos/manuals, and 24/7 technical support.
For standard products, the typical lead time is approximately 4-6 weeks after order confirmation. For customized projects or bulk orders, a detailed timeline is provided upon project review.
Yes. With a flexible production system and an experienced engineering team, we provide both OEM (using your brand) and ODM (custom design) services, ensuring strict confidentiality and high quality.
