XL-21 type LV power panel can be used in AC 500V or lower system of three-phase three-wire,three-phasefour-wire,three-phase five-wire for electricity-generating and mine enterprises,also for the purpose ofpower lighting,distribution.
Main Technical Parameters
| Name | Unit | Data |
| RatedVoltage | V | 380 |
| Rated insulation level | 690 | |
| 1 min power frequency withstand voltage | 2500 | |
| Rated current of main circuit | A | >630 |
| Branch current | 100-630 | |
| Rated short circuit breaking current | kA | 16/31.5/40.5 |
| Protection class of shell | IP43 |
General Description
XL-21 type LV power panel can be used in AC 500V or lower system of three-phase three-wire,three-phasefour-wire,three-phase five-wire for electricity-generating and mine enterprises,also for the purpose ofpower lighting,distribution.XL-21 type lowvoltage power panel has flexible distribution scheme,convenientcombination,good practical performance,new structure and etc.
Service Conditions
1.Altitude:2000m;
2.The indoor environment shall be non-ash,non-corrosion gas,and rainwater-proof;
3.Ambient temperature:-25 ℃~+40 ℃,the measured average temperature in 24 hours:≤35 ℃;thetemperatureunder storage and transportation condition:-25℃~+55℃,the temperaturein shorttime≤70℃;
4.Relativehumidityunder the highest temperatureof 40℃:≤50%;
5.No vibration and the oblique mounting angle:≤5℃.
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