1. General
The frames of MNS low voltage electrical control power distribution switchgear are highly flexible. There is no need of repair after installation. Different standard components can be installed in the switchgears to meet various kinds of applicable requirements. Combined design is used in the entire systems including electric ap structure, this optimized structure design can meet different components’ demands and adapt to different working environment and reach corresponding protection level.
Both the design and material of MNS switchgear can minimize the occurrence of fault arc. Once it occurs, it can be extinguished in a short time.
MNS electrical control cabinet meets the requirements of Appendix AA in IEC298, it passes the fault arc measurement of an independent testing organization, as well as the type test. During the test, there is no effect on adjacent extracting type components after fault arc occurrence. After arc extinction, drawer-type components still have operational functions after cleaning up: The positions of the components with mechanical interlock will not change and even when it is at disconnecting position, there is no fault arc marks on switchgears surface.
There is no CFC or halogen contained in plastic material used in MNS system. This kind of plastic material has flame-retardant and self-extinguishing characteristics. Compare with traditional product, the innovative MNS LV switch gear has more advantages.
2. Main Electric Parameters
Busbar | |||
Rated Voltage |
Rated Current |
||
Rated Insulation Voltage∪1 |
1000V three-phase AC,1500V DC |
||
Rated Operational Voltage∪2 |
690V three-phase AC,750V DC |
Rated Current |
To 6300A |
Rated Impulse Withstand Voltage∪imp |
8KV |
Rated Peak Withstand Current |
To 250KA |
Rated Short-time Withstand Current |
To 100KA |
||
Branch Bus | |||
Overvoltage Level |
Ⅲ |
Rated Current |
To 2500A |
Pollution Level |
3 |
Rated Peak Withstand Current |
To 110KA |
Rated Frequency |
50-60HZ |
Rated Short-time Withstand Current |
To 65KA |
3. Operation conditions
1. Ambient temperature: should be more than -5℃ and less than 40℃. The average temperature in 24 hours should be less than 35℃.
2. Humidity: air should be clear. The relative humidity when highest temperature is 40℃ should be less than 50% and higher relative humidity is allowed when temperature is a little bit low. For example, when temperature is 20℃, humidity can be 90%. Dewing will be happened occasionally due to the change of temperature.
3. When temperature is between -25℃and 55℃, transportation and storage can be proceeded.
4. The altitude should be less than 2000m.
5. Earthquake seismic degree should be less than 8.
6. Pollution degree: three
Note:1. if choose some element which cannot meet the above requirements, user and manufacturer can coordinate. 2. When the operation conditions are not in accordance with the above conditions, the user can point it out to manufacturer and coordinate.
4. Ordering Instructions
Orderers should provide the following technical documents:
Single line diagram of primary main wiring scheme and main busbar mode and specification.
Secondary schematic diagram and terminal layout. If there is no terminal layout, arrange by manufacturer.
Secondary mini busbar arrangement drawing and relative section view.
If busbar bridge is needed (between switchgears or between switchgear and wall), spacing and height (size) should be provided.
Electrical equipment summery table.
If there is special requirements (regional requirements or special operation conditions), put forward when order.
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If need more spare parts and accessories, provide mode and amount.
5. Certificates
XD HI-TECH, established 2007, is one of the excellent manufacturers in China. Come and find china high quality custom mns low voltage electrical control power distribution switch gear/switchboard/panel/cabinets from our factory. With high precision, and good performance, our custom products have a wide application field. Welcome to wholesale our quality products and the PDF display is also offered.