MNS Low Voltage Switchgear overview
- In the introduction of Swiss ABB technology, improved by Hengfeng you Electric is divided into standard and economic
- The cabinet is divided into three types: power distribution center cabinet (PC), motor control center cabinet (MCC) and power factor automatic compensation cabinet
- Used for receiving feed, bus, lighting, motor control and power compensation in low voltage distribution systems
- Rated AC frequency 50Z / 60Hz, maximum working voltage to 660V, maximum working current to 3150A
- High reliability of operation verification in more than 50 countries and regions around the world
- Mainly used in substation, industrial and mining enterprises, large power plants, petrochemical, high-rise buildings, infrastructure and other fields
- Meet many international standards: IEC60439 BS5486 VDE0660, GB7251, NEMAIC2-322, JB/T9661, etc
MNS Low Voltage Switchgear Advantage
> Leading technology
- Standard anti-corrosion and salt spray environmental plan to meet the stringent environmental requirements of the site
- Lock self tapping screw and 8.8 class high strength bolt for connection, thus high precision cabinet installation
- It can be equipped with circuit breakers of various brands at home and abroad, such as Chint NXM series, ABB TMAX series, Schneider NSX series, etc
- High breaking capacity, good dynamic and thermal stability, advanced structure, any combination of various scheme units
- Compact design to accommodate more functional units in a smaller space
- Adopt high strength resistive engineering plastic components or metal partitions, with anti-leakage performance above CT1300 grade
> Cabinet put oneself in another's position
- Adopts 2-3mm high quality cold rolled hot dip galvanized sheet as a whole
- Laser numerical control equipment cutting, drilling, bending, to ensure the processing accuracy
- The exterior is coated with electrostatic epoxy powder, which will not take off paint for 50 years
- Molding size, hole size and equipment interval are modularized (modulus E=25mm)
> Functional units
- Can be composed of protection, operation, conversion, control, regulation, measurement, indication and other standard units, can be optional assembly
- More than 200 kinds of assembly parts can be composed of different schemes of cabinet structure and drawer units
> Busbar system
- Adopt three-phase four-wire system or three-phase five-wire system
- High quality three-phase tin bus copper bar, high mechanical strength, good heat dissipation
- The horizontal bus is installed on the top of the cabinet, the N line can be installed on the top or the bottom of the cabinet, and the PE line is installed on the bottom of the cabinet
> Processing and assembly
- Dust-free workshop to ensure insulation
- Assembly workers have been trained for at least 6 months
- The secondary connection is automatic terminal crimping machine to ensure reliable connection
- Use power tools to ensure proper torque for bolting reinforcement
- The copper bus is CNC cutting, punching and bending to ensure the accuracy
- All kinds of experimental tests before delivery to ensure the normal operation of the equipment
MNS Low Voltage Switchgear Parameters
MNS Low Voltage Switchgear Conditions of use
-
Altitude shall not exceed 2000m
- ambient air temperature not higher than +40 ° C, not lower than -5 ° C (average temperature within 24 hours not higher than +35 ° C)
- The humidity of the surrounding air should not exceed 50%. Low temperature allows a large relative temperature (e.g. +20 ° C is 90%). Consideration should be given to the effect of condensation caused by temperature changes
- Inclination with vertical plane is not more than 5°, and the whole group of cabinets is relatively flat, in line with (GBJ232-2) standard
- Requested in no violent vibration and impact, electrical components will not be corroded, no conductive dust place
MNS Low Voltage Switchgear Ordering instructions
> The customer shall provide the following information:
- Main circuit scheme diagram, secondary circuit system diagram and auxiliary circuit control mode
- Equipment layout drawing and distribution room layout drawing
- Brand and model of main electrical components of the equipment
- Inlet and outlet line mode. When bus bridge connection is needed between devices, data such as bus spacing and height from ground shall be provided.
- Other special requirements can be negotiated with Hengfengyou Electric
Our Advantages
- Authoritative product certification: ISO CE, CB, CCC, etc
- Perfect SQA quality management system to ensure high quality products
- Quick quotation, can provide electrical design services
- The delivery period is short, and the fastest delivery time is 15 days worldwide
- Perfect after-sales service system, so that customers buy worry-free
- Welcome customers to visit the factory guidance, OEM/ODM provided
MNS Low Voltage Switchgear FAQ
-
What is the typical application of MNS Low Voltage Switchgear?
MNS switchgear is widely used in commercial buildings, industrial plants, and infrastructure projects for reliable power distribution and motor control.
-
What voltage and current ratings does MNS switchgear support?
It typically operates at voltages up to 690V AC and current ratings from 400A to 6300A, depending on the configuration.
-
Is MNS switchgear compliant with international standards?
Yes, it meets IEC 61439, UL 1558, and other regional certifications for safety and performance.
-
What types of protection devices are integrated into MNS switchgear?
Common options include circuit breakers (ACB, MCCB), fuses, overload relays, and earth leakage protection.
-
Can MNS switchgear be customized for specific project needs?
Yes, modular design allows customization of busbar capacity, compartment layout, and communication interfaces.
-
How does MNS ensure operational safety?
Features include segregated compartments, arc-flash mitigation, and mechanical/electrical interlocks to prevent accidental contact.
-
What communication protocols are supported for smart monitoring?
Options include Modbus, Profibus, or IEC 61850 for real-time data collection and remote control.
-
What is the expected service life of MNS switchgear?
With proper maintenance, the lifespan exceeds 30 years under standard operating conditions.
-
How is heat dissipation managed in MNS systems?
Natural convection or forced ventilation is used, with temperature monitoring for critical applications.
-
What maintenance is required for MNS switchgear?
Regular inspection of contacts, cleaning of dust, tightening of connections, and functional testing of protection devices are recommended.
