TRANSFORMERS & ELECTRICAL COMPONENTS
APPLICATION / 01
Plant power centres
For incoming supplies, bus distribution and large outgoing circuits serving industrial installations.
MINGKONGmkelecsolution.com
Product illustration. Actual configuration varies by specification.
Open product image ↗Low-voltage Distribution
MNS · Low-voltage withdrawable switchgear
Modular low-voltage switchgear for power distribution and motor-control duties.
- Catalogue designation
- 400 V AC
- Selection
- Circuit schedule and enclosure arrangement
- Frequency
- 50–60 Hz
- Protection range
- IP30–IP54
Price on enquiry · Configuration, quantity & destination
Supply scope, manufacturer information, applicable documents and warranty arrangements are confirmed in the quotation and order.
APPLICATION & DUTY
Where MNS fits
MNS is a modular low-voltage switchgear system combining power-centre, motor-control and compensation functions. Fixed and withdrawable arrangements can be selected to suit the circuit schedule. The modular structure supports different functional combinations within an agreed electrical and dimensional design.
APPLICATION / 02
Motor and process loads
For grouped motor-control circuits requiring switching, protection, indication and control interfaces.
PRODUCT ENGINEERING
Construction & operating functions
DETAIL / 01
Modular C-profile frame
The frame uses a regular mounting-hole arrangement to position internal components and functional assemblies. Galvanised structural parts and finished doors form the described cabinet construction.
DETAIL / 02
Power-centre arrangement
Power-centre sections accommodate the main switching and distribution equipment, including withdrawable breaker arrangements where specified.
DETAIL / 03
Motor-control units
Motor-control sections may use drawer or fixed functional units. Unit selection depends on the motor duty, starting method, protection and control requirements.
DETAIL / 04
Functional combinations
Protection, operation, measurement, indication and control functions can be combined within the switchboard scheme. Compensation sections should be identified separately in the project scope.
DEFINE THE SELECTED ASSEMBLY
Configuration & installation interfaces
Match the installation drawing, cable routes, clearances and electrical duty for the selected equipment.
Illustrative working scene- Line-up design
- Define incoming and bus-coupler circuits, outgoing loads and future spare sections.
- Operating arrangement
- State which circuits require withdrawable units and the required access and isolation arrangement.
- Monitoring
- Provide metering points, control signals and communication requirements.
Installation & connection checklist
- Confirm the busbar rating and fault duty for the selected arrangement.
- Provide cable schedules and entry directions.
- Coordinate cabinet dimensions with switchroom access and transport limits.
- For an existing installation, supply drawer and secondary connector drawings before assessing compatibility.
RATING DATA
Technical parameters
8Parameter / configuration entries
Units shownCompare values with their units
Selected variantConfirm the matching configuration
Review the listed configuration and applicable units. On a small screen, scroll the table sideways.
| Parameter | Catalogue value |
|---|---|
| Rated insulation voltage | AC 690 V |
| Rated operating voltage in table | AC 400 V |
| Rated impulse withstand | 8 kV |
| Rated frequency | 50–60 Hz |
| Main-bus maximum current | 6,300 A |
| Main-bus withstand current | 100 kA |
| Main-bus peak withstand | 220 kA |
| Enclosure protection options | IP30–IP54 |
Checked against original distribution catalogue PDF page 29. The table states 400 V operation; other voltage arrangements require a separate schedule. Ambiguous vertical-bus values are excluded. Ratings describe catalogue options, not every possible combination; select the complete configuration in the technical schedule.
Drawings & configuration documents
Send your selected rating and installation requirements to request the matching dimensional drawing, connection details and technical schedule.
DOCUMENTS · DELIVERY · SUPPORT
Technical coordination & after-sales enquiries
Confirm the order documents
Agree the selected specifications, applicable drawings, inspection records and identification requirements in the quotation and order.
Coordinate delivery
Include quantity, destination, packing requirements and preferred trade terms. Confirm transport scope and the requested delivery schedule with the quotation.
Request technical support
For an existing unit, provide its model, nameplate or order reference and a description of the issue. Include relevant photos or records already available. Warranty and service scope follow the agreed order terms.
Contact about this model ↗START WITH WHAT YOU HAVE
Prepare a quotation for this equipment.
Choose your enquiry type. Start with the information you have.
Price on enquiry
Quotations are prepared for the selected configuration, quantity and destination. Currency, validity, delivery terms, freight and any applicable duties or taxes are specified in the quotation.
Project procurement
New installations & project tenders
Discuss a project ↗What to prepare
Send the load list, single-line diagram, fault duty and switchroom layout.
Distributor procurement
Model lists & repeat orders
Discuss supply requirements ↗What to prepare
Identify recurring cabinet arrangements, circuit quantities and preferred installed devices.
Panel & equipment builders
Equipment integration & matching
Discuss an assembly ↗What to prepare
Supply the feeder schedule, wiring diagrams, mounting details and cable-entry requirements.
Repair & replacement
Identify an existing unit or part
Identify a replacement ↗What to prepare
Provide cabinet, drawer or device identification, dimensions and connection details for the part to be replaced.
Illustrative enquiry scenarios.
Selection checklist for MNS
- Single-line diagram, load list and outgoing circuit schedule
- System voltage, bus current and short-circuit duty
- Fixed or withdrawable units, protection and control functions
- Enclosure dimensions, mounting, cable entry and site conditions
- Confirm the busbar rating and fault duty for the selected arrangement.
- Provide cable schedules and entry directions.
- Coordinate cabinet dimensions with switchroom access and transport limits.
- For an existing installation, supply drawer and secondary connector drawings before assessing compatibility.
From enquiry to an agreed supply
- Share the requirementModel, duty, quantity and destination.
- Review the configurationResolve ratings, interfaces and site conditions.
- Agree the technical scheduleScope, drawings, tests, price and delivery terms.
- Confirm delivery documentsAgree packing, identification and the applicable inspection records.
Testing, warranty terms and after-sales scope are to be agreed in the quotation and order documents for the selected configuration.
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Mingkong High & Low Voltage Switchgear Selection Guide · Updated 24 October 2026 · Chinese / English
For a quotation, include your required model, rating, quantity and operating conditions.