Features
1. The main frame of the device is made of 8MF steel, and the frame adopts two structural forms of assembly and partial welding. There are installation module holes E=20㎜ on the main frame
2. The functional rooms of the device are strictly separated, and the compartments are mainly divided into functional unit rooms, busbar rooms, and cable rooms, and the functions of each unit are relatively independent.
3. The feeder cabinet and the motor control cabinet are equipped with special cable compartments, and the connection between the functional unit room and the cable room is realized through the transfer piece or the transfer copper bar, which not only improves the reliability of the cable, but also greatly facilitates the user to Cable installation and maintenance.
4. The number of pairs of auxiliary contacts of the functional unit of the device is 32 pairs for one unit and above, and 20 pairs for 1/2 unit, which can meet the needs of automation users and computer interfaces.
5. The separation between functional units and compartments is clear and reliable, and the failure of one unit will not affect the work of other units, so that the failure is limited to a minimum range.

Working Environment
1 The altitude does not exceed 2000M.
2 The short-term maximum temperature is 40°C, the 24-hour average maximum temperature is 35°C, and the minimum temperature is -5°C.
3 The annual average relative humidity of the air is not more than 90%.
4 Places without obvious severe vibrations, shocks and bumps.
5 There are no flammable and explosive materials, and there is no gas and conductor dust in the surrounding air that can corrode metals and damage insulation.
Technical Parameters
Main circuit rated voltage (V) AC400V, AC660V
Auxiliary circuit rated voltage (V) AC220V, AC380V
Rated frequency (Hz) 50 (60) HZ
Rated insulation voltage (V) 660 (1000) V
Rated current (A) horizontal busbar ≤=5000A
Vertical busbar ≤630~2000A
Power frequency withstand voltage (1min/V) Main circuit 2500V
Auxiliary circuit 1800V
Handle 3750V
Bus short-time withstand current (1S)/KA 50 (80) KA
Enclosure protection grade IP30, IP40
Compliant with standards GB7251.1, ZBK36001, IEC439-1

Dimensions
Cabinet standard size H (mm) x W (mm) x D (mm)
Cabinet height (H): 2200
Cabinet width (W): 600, 800, 1000
Cabinet depth (D): 800, 1000