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Help CenterXL-21 Low Voltage Main Distribution Panel
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XL-21 low voltage main distribution panel
Features
- Wide range of applications
- flexible scheme
- Easy operation
Description
XL-21 low voltage main distribution panel is an economical low voltage distribution equipment, which can be installed against the wall, operated at the front door and maintained easily.
Application
XL-21 low voltage main distribution panel is suitable for three-phase four-wire power system with AC frequency of 50Hz and voltage of 380V. Widely used to the low voltage power distribution systems of power plants, transformer substations, petroleum, chemical, metallurgical, machinery and other industrial enterprises and high-rise building for power transformation, distribution and controlling.
Normal operating conditions
- Ambient air temperature : -5°C ~ +40°C;
- Daily average temperature(Within 24h): ≤+35℃
- Relative humidity: ≤50% at the maximum temperature of +40℃ and may be higher at lower temperature, for example, 90% at +20℃.
- Altitude:≤2,000m;
- Installation inclination:≤ 5°;
- Installation places: Indoor; without fire, explosion risk, serious pollution, rain immersion, violent vibration, chemical corrosion and conductive dust.
Special operation conditions
If the switchgear will be used in conditions that exceed the normal environmental conditions, users should consult with the manufacturer.
Technical Parameter
No. |
Item(Unit) |
Data |
1 |
Rated Operational Voltage(V) |
AC380 |
2 |
Rated Insulation Voltage(V) |
AC500 |
3 |
Rated Frequency(Hz) |
50 |
4 |
Main Bus Rated Current(A) |
≤630 |
5 |
Main Bus Rated Short-time Withstand Current(kA) |
≤15 |
6 |
Rated Impulse Withstand Voltage (kV) |
6 |
7 |
Standard |
GB7251.12 |
8 |
Protection Degree |
IP30 |
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