Mns Low Voltage Switchgear

The Usune MNS Low Voltage Switchgear adopts a factory-assembled (FBA) standard modular structure and is mainly used for power distribution, conversion, and control in AC 50/60Hz, 660V and below power systems. The product strictly complies with GB 7251.1, JB/T 9961, and IEC439-1 standards and is ISO management system certified, integrating high reliability, operational safety, and ease of maintenance.

Low voltage switchgear

Medium voltage switchgear

Applicable Scenarios

1. Power Sector: Power plants, substations
2. Industrial Sector: Petrochemical, metallurgical steel rolling, light industry and textiles, mining enterprises
3. Construction and Infrastructure: Residential communities, high-rise buildings, transportation infrastructure
4. Special Scenarios: Offshore oil drilling platforms, nuclear power plants (requires a separate technical agreement)

Environmental Conditions

1. Ambient Temperature: -5℃～+40℃, 24-hour average temperature not exceeding +35℃
2. Humidity: Relative humidity not exceeding 50% at +40℃; higher humidity is permissible at lower temperatures (e.g., 90% at 20℃), but condensation should be noted.
3. Installation Altitude: Not exceeding 2000m
4. Transportation and Storage Temperature: -25℃～+55℃, can withstand +70℃ for short periods (≤24h)
5. Customization can be negotiated with the manufacturer if special operating conditions cannot be met.

Technical Parameters and Structural Types

1. Distribution Center Cabinet (PC)

Compatible with Emax, MT, 3WN, AH, ME 1. Series Circuit Breakers: Used for power reception, distribution, and protection.

2. Motor Control Center Cabinet (MCC)

Composed of large and small drawer units, each circuit's main switch uses a high-breaking capacity molded case circuit breaker or fuse-type load switch for centralized motor control.

3. Automatic Power Factor Compensation Cabinet

Equipped with manual, automatic, and remote power factor compensation devices to achieve intelligent reactive power adjustment.

Practical Application Case

Case Study: Upgrade Project of a Large Steel Rolling Mill in Northern China

This steel plant selected Usune MNS Low Voltage Switchgear as the core equipment for the main power distribution and motor control of the rolling mill, configuring a total of 58 MCC cabinets and 12 compensation cabinets.

The equipment can stably withstand frequent start-stop and impact loads of high-power motors. The drawer-type structure makes maintenance and capacity expansion more efficient. It has been operating stably for many years, effectively ensuring continuous production and significantly reducing downtime maintenance costs.

Product External Dimension

A power distribution center (PC) cabinet

B Motor control center (MCC) cabinet

Project Reference

Cas-space Rocket Launch Project

Test Report

FAQ

Q1: What are the advantages of the MNS Low Voltage Switchgear compared to traditional fixed cabinets?

A: The MNS features a pull-out modular design, resulting in higher circuit density and a smaller footprint within the cabinet. Faulty units can be individually removed and replaced without a complete power outage. It offers greater scalability and better safety isolation, making it more suitable for modern industrial and building power distribution.

Q2: Can this product be used in marine or high-humidity environments?

A: Yes. It can be used directly in normal environments. For special scenarios such as offshore platforms and nuclear power plants, Usune can provide customized solutions for corrosion resistance, moisture resistance, and salt spray protection, and sign special technical agreements.

Q3: What are the product's execution standards?

A: The product complies with GB 7251.1, JB/T 9961, and IEC439-1 international standards. Design and production follow ISO management system requirements.

Summary

The Usune MNS Low Voltage Switchgear features a standard structure, stable performance, and easy maintenance, suitable for power distribution needs in various fields such as industry, power, and construction. Leveraging China's complete industrial chain and professional manufacturing capabilities, Usune, as a reliable manufacturer and supplier, provides safe and efficient low-voltage power distribution solutions to users worldwide.