Overview
The MNS low pressure drawout switchgear is a factory assembled (FBA) modular cabinet with standard modules, widely used by global low voltage switchgear manufacturers and suppliers. This series of low-voltage drawout switchgear is suitable for power plants, substations, petrochemical industry, metallurgical steel rolling, transportation energy, light industry textile and other factories and mining enterprises, residential areas, high-rise buildings and other places, as AC 50-60HZ, rated working voltage AC 660V and below the power system of the power distribution standby power conversion, distribution and control, making it ideal for industrial buyers, engineering contractors, and LV switchgear procurement projects.
Model Meaning
| M | N | S |
| ↓ | ↓ | ↓ |
| Modular,modular | New type | System |
Conditions Of Use
Ambient air: the temperature is not higher than +40 ° C, not lower than -5 ° C, and the average temperature within 24 hours is not higher than +35 ° C.
• Atmospheric conditions: The air is clean, the relative humidity does not exceed 50% at the maximum temperature of +40 ° C, and a higher relative humidity is allowed at lower temperatures, such as 90% at +20 ° C, but temperature changes should be taken into account, and condensation may occur occasionally.
• Altitude does not exceed 2000m.
• If the above conditions of use cannot be met, it shall be resolved by negotiation between the user and the manufacturer.
• When the device is used in offshore oil drilling platforms and nuclear power plants, a separate technical agreement shall be signed.
Key Features of MNS Low Voltage Switchgear
Compact design: it can accommodate more functional units in a smaller space.
Strong structure versatility, flexible assembly. The C profile with 25mm modulus can meet the requirements of various structural forms, protection levels and use environment.
Standard module design: can be composed of protection, operation, conversion, control, adjustment, measurement, indication and other standard units, users can choose to assemble according to needs. More than 200 assembly parts can be used to assemble the cabinet structure of different schemes and to form a fixed partition or drawer unit.
Safety: A large number of high-strength flame-retardant engineering plastic components are used to effectively enhance protection and safety performance.
High technical performance: the main parameters reach the contemporary international level.
Compression site: high degree of tritization, can greatly compress the storage and transportation of prefabricated sites.
Easy assembly: no special complex tools are required.
Switch Cabinet Type
Power distribution cabinet (PC): Emax, MT, 3WN, AH, ME series circuit breakers can be used.
Motor control center cabinet (MCC): assembled by large and small drawers, the main switch of each circuit adopts high break plastic-case circuit breaker or rotary load switch with fuse.
Automatic power factor compensation cabinet (with manual, automatic and remote power factor compensation devices)
Basic Technical Parameters
| ltem | Argument |
| Rated insulation voltage | 660V(1000)V |
| Rated operating voltage | 380V,660V |
| Maximum working current of main bus | 5000A |
| Rated withstand current of main bus | 100kAl1s |
| Rated peak withstand current of main bus | 220 ka/0.1s |
| Maximum operating current of the distribution bus (vertical bus) | 1000A |
| Distribution bus (vertical bus)peak current:standard type,enhanced type | 105 Ka(Max.)/0.1s,176kA(Max.)/0.1s |
FAQ
What is MNS low voltage switchgear?
MNS is a factory‑assembled modular low voltage drawout switchgear system designed for AC 50–60Hz power distribution with rated working voltage up to AC 660V.
Where is MNS switchgear used?
It is suitable for power plants, substations, petrochemical facilities, metallurgical steel rolling, transportation energy, textile factories, mining enterprises, residential areas, and high‑rise buildings.
What does MNS stand for?
MNS represents a Modular, New type, System low voltage switchgear structure.
What are the environmental conditions for MNS switchgear?
Ambient temperature should be between –5°C and +40°C, with a 24‑hour average not exceeding +35°C. Relative humidity should not exceed 50% at +40°C, and altitude should not exceed 2000m.
What are the key features of MNS low voltage switchgear?
It features compact design, modular assembly, strong structural versatility, standard functional units, high safety with flame‑retardant components, high technical performance, and easy assembly without special tools.
What types of switch cabinets are available in the MNS system?
The system includes power distribution cabinets (PC), motor control center cabinets (MCC), and automatic power factor compensation cabinets.
What are the basic technical parameters of MNS switchgear?
It supports rated insulation voltage 660V(1000V), operating voltage 380V/660V, main bus current up to 5000A, withstand current 100kA/1s, peak current 220kA/0.1s, and vertical bus current up to 1000A.
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