China Low Voltage Electric Power Distribution Box Cabinet

Low Voltage Electric Power Distribution Box Cabinet
Binzhou Hongbo Electric Co., Ltd. was incorporated in 2009, is located in Binzhou City, eight the Yellow River Road No. 856, is a set of production and manufacturing, sales and installation of integrated enterprises diversified electric power equipment business.
XL-21 low voltage control cabinet is suitable for power distribution in power plants and industrial and mining enterprises. The XL-21 low-voltage power cabinet is installed against the wall and overhauled in front of the screen for three-phase four-phase three-phase five-wire system with an ac voltage of 500 volts or less.
APPLICATION ENVIROMENTAL CONDITIONS
1. The ambient air temperature is no higher than 40 degrees Celsius, no lower than minus 5 degrees Celsius, and the average temperature within 24 hours is no higher than 35 degrees Celsius
2. Indoor installation and use, the altitude of the use site shall not exceed 2000 meters
3. The relative humidity of the surrounding air shall not exceed 50% when the maximum temperature is 40 degrees Celsius, and a large relative humidity is allowed at a lower temperature (for example, 90% at 20 degrees Celsius). The effect of occasional condensation due to temperature changes should be taken into account
4. The inclination of the equipment to the vertical plane shall not exceed 5 degrees during installation
5. The equipment shall be installed where there is no violent vibration and shock, and where insufficient corrosion occurs to the electrical components
6. Special requirements of users can be resolved through consultation with the manufacturer
Structure Characteristics
XL-21 Low-voltage power distribution box is closed, the shell is made of steel plate bending, knife switch operating handle in the front of the right column of the upper part, can be used as a switching power supply beat point to the front of a voltmeter, indicating the bus bus voltage distribution box in front of the door, the door opened, all the equipment in the distribution box open for maintenance.
This distribution box all USES the domestic design type component, has the compact structure, the maintenance convenience, the line plan may be flexible combination and so on the characteristic distribution box in addition to has the air circuit breaker and the fuse as the line protection, also has the contactor and the heat relay, the box front door may install the operation button and the indicator light.

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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