MNS low Voltage withdrawable type switchgear is used for conversion,distribution and control of electrical energy of power distribution equipment of AC 50~60Hz，400V.lt is mainly used in airports，power plants,substations，petrochemical plants，metallurgic plants，steel plants.transportation energy， light textile and residential districts，high-rise buildings,etc.The switchgear conforms to lEC439，GB/T7251.1 and other professional standard. lt uses standard module design，and it can respectively form standard unitssuchas protection,operation,conversion.control，regulation， determination and indication. Over 200 types of assembly parts can form frame structures of different schemes, and form fixed separation or drawer units. The users can select assemblies arbitrarily according their demands.
| Content | Unit | Value | |
|---|---|---|---|
| Rated Operational Voltage | V | 400 | |
| Rated Insulation Voltage | v | 690 | |
| Rated Frequency | Hz | 50/60 | |
| Main Bus-Bar | Rated Current | A | ≤6300 |
| Rated short time withstand current(1S) | kA | ≤100 | |
| Rated Peak Withstand Current | kA | ≤220 | |
| Distribution Bus | Rated Current | A | <1300 |
| Rated short time withstand current(1S) | kA | ≤50 | |
| Rated Peak Withstand Current | kA | ≤105 | |
| Frequency Withstand Voitage in 1 min of Aux Control Loop | kv | 2 | |
| Rated Impulse Withstand Voltage | kv | 8 | |
| Degrees of Protection | IP | IP40 | |
| Electrical Clearance | mm | ≥10 | |
| Creepage Distance | mm | ≥12.5 | |
| Overvoltage Level | － | Ⅲ/IV | |
| Pollution Degree | － | 3 | |
MNS low-voltage cabinet is widely used in distribution power stations, factories, industrial and mining enterprises, nuclear power stations and building distribution.
MNS low voltage cabinet is a low voltage withdrawable switchgear, its design and use scenario mainly consider a variety of environmental factors and technical requirements. First of all, the design of MNS low pressure cabinet takes into account the range of ambient air temperature, stipulates that the ambient air temperature does not exceed +40℃, and not lower than -5℃, to ensure that it can work normally under various environmental conditions. in addition, takes into account the cleanliness of the air and the relative humidity, stipulates that the relative humidity of should not exceed 50% when the highest temperature is +40℃, while a higher relative humidity is allowed at lower temperature, for example 90% at +20℃, ADAPTS to a variety of environmental conditions. altitude has also been limited to less than 2,000 meters, to ensure equipment can work properly in the plateau region.
The main difference between MNS low voltage cabinets and GCK low voltage cabinets is their structural design and mode of operation. GCK cabinet is a draw-out low-voltage switchgear, using a combined structure, small size, compact structure, convenient transportation and installation. It has high protective performance and service life, mainly used for power distribution and motor control, can achieve remote control and monitoring of electrical equipment. MNS cabinet is also a drawer cabinet, similar to GCK, its cabinet also adopts a combined structure, providing the possibility of double-sided operation, the depth of 1000mm, which makes it more flexible in installation and operation.
Regarding the protection level of MNS low-voltage cabinet, it usually has a high protection performance, and the specific protection level may vary according to the specific application environment and design requirements. When choosing a low-voltage switchgear, it is crucial to consider factors such as the installation environment, equipment requirements, protective performance and maintenance
MNS switchgear can house a variety of components, including circuit breakers, switches, meters, and protective devices, all in a coordinated system.
When selecting MNS switchgear, consider the power requirements, system configuration, environmental conditions, safety standards, and future expansion needs.
