Product Introduction
Overview of MNS Low-Voltage Switchgear
It is a modular cabinet type assembled in the factory (Factory-Built Assembly, FBA) using standard modules, and its technology has reached the international advanced level. The MNS low-voltage withdrawable switchgear is suitable for power plants, substations, petrochemical enterprises, metallurgical and steel-rolling plants, transportation and energy facilities, light industry and textile factories, and other industrial and mining enterprises, as well as residential quarters, high-rise buildings and other places. It is used for power conversion, distribution and control of power distribution equipment in power systems with AC 50~60Hz and rated operating voltage of AC 660V and below.
It is a modular cabinet type assembled in the factory (Factory-Built Assembly, FBA) using standard modules, and its technology has reached the international advanced level. The MNS low-voltage withdrawable switchgear is suitable for power plants, substations, petrochemical enterprises, metallurgical and steel-rolling plants, transportation and energy facilities, light industry and textile factories, and other industrial and mining enterprises, as well as residential quarters, high-rise buildings and other places. It is used for power conversion, distribution and control of power distribution equipment in power systems with AC 50~60Hz and rated operating voltage of AC 660V and below.
This device complies with Chinese national professional standards such as GB 7251.1 Low-Voltage Switchgear and Controlgear Assemblies and JB/T 9961 Low-Voltage Withdrawable Switchgear Assemblies, as well as international professional standards including IEC 439-1 and VDE 0660 Part 5.
Model and Its Meaning
Model and Its Meaning
Technical Parameters of MNS Switchgear
Operating Conditions for MNS
1、The ambient air temperature shall not be higher than +40℃ or lower than -5℃, and the average temperature within 24 hours shall not exceed +35℃.
2、The air shall be clean. The relative humidity shall not exceed 50% when the maximum temperature is +40℃; higher relative humidity is allowed at lower temperatures (e.g., 90% at +20℃). However, account shall be taken of the possibility of occasional condensation caused by temperature changes.
3、The altitude shall not exceed 2000 meters. (Note: The original "2000mm" is a unit error. For altitude, the standard unit is "meters (m)"; "mm (millimeters)" is used for length/height of components, so it is corrected to "2000 meters" in line with industrial conventions for equipment operating conditions.)
4、This device is suitable for transportation and storage within the temperature range of -30℃ to +55℃. For a short period (not exceeding 24 hours), the temperature can reach +70℃. The device shall not suffer any irrecoverable damage under these extreme temperatures and shall be able to work normally under standard conditions.
| Item | Parameter |
| Rated Operating Voltage (V) | 380、660 |
| Rated Insulation Voltage (V) | 380、1000V |
| Rated Frequency (Hz) | 50 |
| Maximum Operating Current of Main Busbar (A) | 5000 |
| Rated Withstand Current of Main Busbar (A) | 100kA/1s |
| Rated Peak Withstand Current of Main Busbar (A) | 220kA/0.1s |
| Maximum Operating Current of Distribution Busbar (Vertical Busbar) (A) | 1000 |
| Peak Current of Distribution Busbar (Vertical Busbar) (A) | Standard Type 105kA (Maximum Value) / 0.1s Enhanced Type 176kA (Maximum Value) / 0.1s |
1、The ambient air temperature shall not be higher than +40℃ or lower than -5℃, and the average temperature within 24 hours shall not exceed +35℃.
2、The air shall be clean. The relative humidity shall not exceed 50% when the maximum temperature is +40℃; higher relative humidity is allowed at lower temperatures (e.g., 90% at +20℃). However, account shall be taken of the possibility of occasional condensation caused by temperature changes.
3、The altitude shall not exceed 2000 meters. (Note: The original "2000mm" is a unit error. For altitude, the standard unit is "meters (m)"; "mm (millimeters)" is used for length/height of components, so it is corrected to "2000 meters" in line with industrial conventions for equipment operating conditions.)
4、This device is suitable for transportation and storage within the temperature range of -30℃ to +55℃. For a short period (not exceeding 24 hours), the temperature can reach +70℃. The device shall not suffer any irrecoverable damage under these extreme temperatures and shall be able to work normally under standard conditions.
Product details
