Low-voltage power distribution box: XL-21
Featuring a compact and robust closed-box structure fabricated from cold-rolled steel plates through bending and welding, the product boasts an IP30 or higher protection rating. This ensures effective resistance to dust and foreign object intrusion, guaranteeing stable operation in harsh industrial environments.The cabinet features a scientifically optimized layout with clearly demarcated zones for busbars, components, and circuits, significantly enhancing installation and maintenance efficiency. Core components including isolating switches, circuit breakers, contactors, thermal relays, and fuses work in concert to enable motor startup, shutdown, protection, and real-time monitoring. Strictly compliant with national standards, the distribution box provides comprehensive protection against short circuits and overloads, ensuring safe and reliable operation. Designed with both practicality and cost-effectiveness, it supports flexible configurations to meet user requirements, making it an indispensable power distribution and control infrastructure for industrial production.
The XL-21 low-voltage power distribution cabinet is of the enclosed type. Its enclosure is made of bent steel plates. The operating handle of the knife switch is installed on the upper part of the front right pillar and can be used to switch the power supply. A voltmeter is installed on the front of the distribution box to indicate the voltage of the busbar. The front of the distribution box has a door. When the door is opened, all equipment inside the distribution box is exposed, facilitating inspection and maintenance. This distribution box uses domestically designed modular components and features a compact structure, convenient maintenance, and flexible combination of circuit schemes. In addition to being equipped with air circuit breakers and fuses for short-circuit protection, the distribution box is also equipped with contactors and thermal relays. Operation buttons and indicator lights can be installed on the front door of the box.
Knife-fuse Combination Switch | |||
Model |
Rated Current (A) |
Fuse Rated Current (A) |
Remarks |
HR |
630 |
150, 200, 250, 300, 350, 400, 500, 630 |
No fusible link installed when installing the isolation blade |
Air Circuit Breaker | |||
Model |
Rated Current (A) |
The rated current of the release(A) |
Remarks |
MCCB-63 |
20 |
7, 10, 15, 20, 30, 40 |
|
MCCB-100 |
100 |
15, 20, 25, 30, 40, 50, 60, 80, 100 |
|
MCCB-250 |
250 |
100, 120, 140, 170, 200, 225, 250 |
|
Current Transformer | |||
Model |
Primary Current (A) |
Secondary Current (A) |
Remarks |
LM-0.5 |
75, 100, 150, 200, 300, 600 |
5 |
|
Fuse | |||
Model |
Fuse |
Rated Current of Fuse Link (A) |
Remarks |
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 |
|
RL1-630 |
630 |
400, 500, 630 |
|
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