Descriptions
MNS series low-voltage draw-out switchgear cabinet is a combined cabinet type of factory-assembled (FBA) with standard modules, MNS series technology has reached an advanced international level.
MNS series low-voltage draw-out switchgear cabinet is suitable for power plants, substations, petrochemical industry, metallurgical rolling, transportation energy, light industry textile and other factories and mining enterprises and residential areas, high-rise buildings and other places, as AC 50~60Hz, rated voltage AC 660V and below the power system of the power distribution equipment for energy conversion, distribution and control.
MNS series low-voltage draw-out switchgear cabinet conforms to GB7251.1 "Low-voltage switchgear assemblies" and JB/T9961 "low-voltage draw-out switchgear assemblies" national professional standards and in line with IEC439-1 international professional standards.
Model Description
Working condition
- The Environment air temperature shall not be higher than +40°C, not lower than -5°C, and the average temperature within 24h shall not be higher than +35°C;
- For indoor installation and use, the altitude of the use place shall not exceed 2000m;
- The relative humidity of the surrounding air should not exceed 50% when the maximum temperature is +40°C, and a larger relative humidity should be allowed at a lower temperature (such as 90% when +20°C), taking into account the effect of condensation that may occur occasionally due to changes in temperature;
- The inclination of the vertical plane shall not exceed 5° when installation;
- The equipment should be installed in a place without violent vibration and impact, and not enough to corrode the electrical components.
Product structure Characteristics
- Compact design: to accommodate more functional units in a smaller space;
- Strong structure versatility, flexible assembly: 25mm as the modulus of the C profile can meet the requirements of various structural forms, protection levels and use environment;
- Standard module design: can be composed of protection, operation, transition, control, adjustment, indication and other standard module, users can choose according to the needs
- High technical performance: the main parameters reach the international technical level;
- Compressed site: compact, which can greatly compress the storage and transportation of pre-made sites;
- Easy assembly: no special complexity is required.
Main Technical Parameters
|
Standards and technical specifications |
GB7251.1-2013 low-voltage switchgear and control (TTA) JB/T9661-1999 low-voltage draw-out switchgear
|
|
Overvoltage Categories |
IVⅢ |
|
Pollution level |
3 |
|
Rated operating voltage(Ue)(V) |
380(660) |
|
Rated operating voltage(Ui)(V) |
660(1000) |
|
Rated frequency(Hz) |
50(60) |
|
Horizontal bus bar |
|
|
Rated current |
SOOOA 4000A 31 SOA 2500A 2000A 630A |
|
Rated short-time withstand current (lcw)(kA) |
50,65,80,(1s RMS value) |
|
Rated peak withstand current (lpk)(kA) |
105,140,176, (0.1s Maximum value) |
|
Vertical bus bar |
Depends on the actual situation |
|
Rated maximum operating current |
≤1000A |
|
Rated peak withstand current |
50kA |
|
Rated peak withstand current |
105kA |
|
Shell protection level |
lp30 IP40(Special Instructions) |
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