MNS Low Voltage Switchgear

MNS Low Voltage Switchgear is a low-voltage complete switchgear system centered on modular functional units and a withdrawable architecture.

Rather than configuring a cabinet only according to its overall capacity, MNS emphasizes the standardized combination of functional units. Incoming feeders, outgoing circuits, motor-control units and compensation circuits can be arranged according to the project's electrical design, allowing the switchgear lineup to match different load structures.

HAGOE MNS is designed for AC power systems with rated operating voltage up to 660V, covering power conversion, distribution and control functions.

For industrial projects requiring multiple distribution circuits, MCC motor-control circuits and centralized electrical control, the modular architecture provides a more structured way to organize the internal functions of the switchgear.

Model Definition

Three Functional Cabinet Configurations

PC Power Distribution Center

The PC cabinet is used for primary low-voltage incoming power and distribution. Depending on current ratings and project requirements, it can accommodate Emax, MT, 3WN, AH and ME series circuit breakers for incoming power connection, protection and distribution.

MCC Motor Control Center

The MCC cabinet is primarily designed for industrial motor loads. According to drawer-unit dimensions and circuit requirements, each functional circuit can use a high-breaking-capacity molded-case circuit breaker or a rotary load switch with fuse protection for centralized motor control and protection.

Reactive Power Compensation Cabinet

The reactive power compensation cabinet can be equipped with manual, automatic and remote reactive power compensation functions according to the project design, supporting power-factor management within the distribution system.

The combination of PC, MCC and compensation functions allows MNS to serve as a complete low-voltage power distribution and motor-control system rather than a standalone distribution cabinet.

Withdrawable Architecture for Functional Maintenance

MNS uses withdrawable functional units. Industrial distribution systems often contain a large number of feeder and motor circuits. With fixed-mounted equipment, maintenance of an individual circuit may require more extensive field disconnection and work.

The withdrawable architecture organizes each functional circuit into an independent unit, allowing maintenance activities to be more specifically targeted.

During engineering configuration, appropriate drawer units can be selected according to circuit type and rating and then assembled through standardized modules.

This design is particularly suitable for:

Multi-circuit industrial distribution

Motor Control Centers

Large production-line power systems

Centralized electrical rooms

Continuous-operation industrial facilities

Standardized Modules for Project-Specific Configurations

The key advantage of MNS Low Voltage Switchgear is not only its withdrawable structure but also its standardized modular design.

An industrial project may include high-capacity incoming feeders, general power feeders, small motor circuits, control circuits and reactive compensation circuits within the same low-voltage system. These circuits have different current ratings, protection requirements and control methods.

MNS configuration should therefore be based on:

Transformer Capacity

Incoming Current

Feeder Quantity

Motor Load

Motor Starting Method

Protection Requirements

Reactive Power Demand

Control and Communication Requirements

HAGOE can configure the cabinet arrangement and functional units according to the customer's single-line diagram, load list or project technical specification.

Applications

MNS Low Voltage Switchgear is intended for industrial systems requiring centralized low-voltage distribution and motor control rather than being limited to one specific industry.

Typical applications include power plants, substations, petrochemical facilities, metallurgy and rolling steel, transportation energy systems, light industry and textile plants.

Technical parameter

Protection level

Service Environment

The standard service conditions for MNS should be confirmed according to the equipment design requirements. Typical conditions include:

• Ambient air temperature: -5°C to +40°C
• 24-hour average temperature: not higher than +35°C
• Altitude: not exceeding 2000m
• Relative humidity at +40°C: not exceeding 50%
• Higher relative humidity may be accepted at lower temperatures, such as 90% at +20°C
• The equipment should not be installed in environments with severe pollution, chemical corrosion, fire, explosion risks or severe vibration.

Transportation and storage are generally supported within -25°C to +55°C. Higher short-term temperatures may be considered provided that no irreversible damage occurs.

For special applications such as offshore oil drilling platforms and nuclear power plants, a separate technical agreement should be established with the manufacturer to define environmental, insulation, structural, material and testing requirements.

HAGOE Engineering and Manufacturing Capability

Hagoe Electric Technology Co., Ltd. was established in 2008 and has more than 18 years of experience in power transmission, distribution systems and power electronics.

For complete low-voltage systems such as MNS Low Voltage Switchgear, HAGOE provides more than standard cabinet fabrication. Our scope covers electrical scheme design, functional-unit configuration, cabinet fabrication, component assembly, complete-cabinet testing and international delivery.

The company holds more than 34 national patents and operates production facilities equipped with Trumpf laser cutting machines from Germany, AMADA CNC bending machines from Japan, automated CNC punching equipment, SMT production lines and intelligent testing systems.

These manufacturing capabilities support cabinet fabrication accuracy, structural consistency and production stability, while the engineering team focuses on system configuration according to project loads, circuit quantity and control requirements.

Quality Control & Compliance

HAGOE operates under ISO9001 Quality Management, ISO14001 Environmental Management and ISO45001 Occupational Health and Safety Management Systems.

MNS quality control covers:

Incoming Material Inspection
Verification of major electrical components, cabinet materials and related parts against procurement and project requirements.

Cabinet Fabrication
Laser cutting and CNC bending processes are used to maintain dimensional accuracy and fabrication consistency.

Functional Unit Assembly
Inspection of drawer-unit structure, mechanical operation and electrical connections.

Busbar and Wiring Inspection
Inspection of busbar installation, connections, insulation and secondary wiring.

Electrical Testing
Factory inspection and electrical performance testing are carried out according to applicable standards and project technical specifications.

This process-based approach helps reduce quality risks caused by component variation, assembly differences and wiring inconsistencies during batch production.

Why Choose HAGOE MNS?

For an MNS Low Voltage Switchgear project, final system performance depends on more than cabinet appearance. System configuration, component matching, drawer-unit design, busbar arrangement, secondary control and final testing all need to work together as one engineering process.

HAGOE provides an integrated capability from R&D and manufacturing to project delivery and can configure MNS systems according to the customer's:

Single-Line Diagram

Load List

Technical Specification

Installation Environment

Protection Requirements

For standard projects, HAGOE can provide product selection and technical parameter confirmation. For industrial automation, petrochemical, metallurgy and large-scale distribution projects, the engineering team can also support system configuration and technical documentation.