XL-21 Electric power cabinet and distribution cabinet
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sales@gowsen.comOverview:
XL-21 low-voltage power distribution cabinet is used in power plants and industrial enterprises and mining enterprises. It is for power distribution in three-phase four-wire or three-phase five-wire systems with AC voltage up to 500V. XL-21 low-voltage power distribution cabinet is an indoor device, and there are test instruments on the door and a switch handle. The shell is made of bent steel plate. We can use different types and current ratings of circuit breakers to meet various customer needs.
Technical parameters of the main equipment:
Disconnector-Fuse
| TYPE | Rated current (A) | Fuse-rated current(A) | Remark |
|---|---|---|---|
| HR3-400/34 | 400 | 150, 200, 250, 300, 350, 400 | No fuse when install knife switch |
Air Circuit Breaker (ACB)
| TYPE | Rated current (A) | Tripping Current Setting(A) | Remark |
|---|---|---|---|
| DZ15-40/390 | 20 | 7、10、15、20、30、40 | |
| DZ10-100/300 | 100 | 15、20、25、30、40、50、60、80、100 | |
| DZ10-250/330 | 250 | 100、120、140、170、200、225、250 |
Current Transformer
| TYPE | Primary current(A) | Secondary current(A) | Remark |
|---|---|---|---|
| LM-0.5 | 75、100、150、200、300、600 | 5 |
Fuse
| TYPE | Fuse | Fuse-rated current(A) | Remark |
|---|---|---|---|
| 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 |
AC Contactor
| TYPE | Rated current (A) | Attracting coil voltage(V) | Remark |
|---|---|---|---|
| CJ10-10 | 10 | AC 110 220 380 | |
| CJ10-20 | 20 | ||
| CJ10-40 | 40 | ||
| CJ10-80 | 80 | ||
| CJ10-150 | 150 |
Instrument
| TYPE | Name | Unit | Range | Remark |
|---|---|---|---|---|
| 44L1-A | Ammeter | A | 5、10、15 | |
| 5、10、15、20、30、50、75、100、150、200 | ||||
| 44L1-V | Voltmeter | V |
Use, maintenance and repair:
Before putting a power distribution box into operation after installation or repair, the following inspections and tests must be carried out. (Inspections and tests after repair depend on nature of the repair)
- Check that the electrical equipment and internal wiring inside the cabinet meet the drawing requirements.
- Check that the knife switch and circuit breaker operate smoothly without jamming.
- Check that all electrical connections are good and meet the equipment’s operating requirements.
- Check for foreign objects inside the cabinet and make sure all fixing screws are tight.
When placing an order, please provide the following information:
- Primary circuit scheme and single-line diagram
- Secondary circuit expanded Diagram
- Detailed specifications and parameters of all electrical equipment installed in each cabinet


