Product Overview
Engineered for heavy‑duty continuous‑operation industrial facilities and large‑scale EPC projects, MNS low voltage withdrawable switchgear adopts internationally‑proven draw‑out modular architecture for 400V / 50Hz power networks. This compact multi‑compartment switchgear separates busbar, functional unit, cable and control sections physically, minimizing cross‑influence during routine maintenance and equipment replacement. Widely deployed in manufacturing complexes, data centers, water treatment plants and large utility substations, it delivers high availability and operational safety for mission‑critical power supply systems.
Key Advantages
Draw‑out Unit Quick‑Swap Design: Each functional unit can be withdrawn, isolated, tested or replaced without powering‑down the whole main busbar. Faulty circuits can be swapped in short time window, greatly cutting system downtime for production‑critical sites. Different unit sizes enable flexible mixing of motor control, feeder and metering functions within one cabinet assembly.
Physical Segregation & Built‑in Safety: Metal partition structure forms independent compartments for busbars, drawers, cables and secondary circuits. Interlocking mechanical locks prevent mis‑operation during insertion‑withdrawal cycles, limiting arc‑flash risk and protecting operators against accidental contact with live parts.
High‑Density Modular Layout: Standardized drawer unit dimensions maximize circuit quantity within limited floor footprint. The framework supports combination of incoming, outgoing, motor control and compensation segments, helping EPC contractors optimize substation room space utilization for new‑build or upgrade projects.
Adaptable Environmental Performance: Robust cold‑rolled steel frame with powder‑coated anti‑corrosion finish. Protection class up to IP40 indoor (IP54 on request). Optimized air‑flow channel keeps temperature‑rise under IEC limits under full‑load continuous running.
Lower Total Downtime Cost: Modular drawer‑based maintenance reduces on‑site repair workload. Spare‑unit stock strategy shortens emergency recovery time, bringing tangible economic value for process industries where power interruption leads to heavy production losses.
Technical Specifications
|
Parameter |
Value |
|
Model |
MNS Low Voltage Withdrawable Switchgear |
|
Rated Working Voltage |
AC 400V 50Hz |
|
Rated Insulation Voltage |
690V |
|
Main Busbar Rated Current |
630A‑4000A |
|
Rated Short‑time Withstand Current |
Up to 50kA / 1s |
|
Protection Degree |
IP30 / IP40 (IP54 optional) |
|
Unit Type |
Withdrawable drawer unit, fixed unit optional |
|
Standard |
IEC 61439‑1‑2, GB/T 7251.1 |
|
Typical Application |
EPC industrial plants, data centers, water works, large‑scale substations |
Application Scop
When projects demand high maintainability and minimum power interruption, withdrawable LV switchgear panel becomes a preferred technical solution. It is widely adopted for process manufacturing, municipal water supply & wastewater treatment, large data center power distribution, mining auxiliary power supply and industrial park substations. Thanks to drawer‑unit interchangeability, expansion and retrofit can be implemented without large‑scale system shutdown, which is highly valued for brown‑field renovation projects.
Why Choose Our MNS Solutio
As a low‑voltage switchgear manufacturer serving global EPC contractors and end‑users, we build every LV withdrawable distribution switchgear against international standards, combining deep domain expertise, real‑world project experience, verified certification and transparent after‑sales commitments.
Expertise (E):
Our electrical engineering team specializes in draw‑out type low‑voltage system design. We pay close attention to compartment segregation, mechanical interlock reliability and busbar temperature‑rise performance. We can optimize drawer layout according to your single‑line diagram, avoiding over‑crowded compartments or insufficient short‑circuit withstand margin common in low‑cost alternatives.
Experience (E):
We have delivered numerous sets for overseas industrial EPC, water and infrastructure projects. Our team understands site constraints such as transportation access, substation room dimension limits and local acceptance customs. We provide practical suggestions for cabinet splitting, unit spare‑part strategy and on‑site commissioning preparation.
Authoritativeness (A):
All assemblies comply with IEC 61439‑1‑2, supported by complete type‑test reports, ISO9001 and CE documents. Full set of test records, single‑line drawings, wiring schematics and operation manuals in English are supplied for project submission and third‑party inspection.
Trustworthiness (T):
Sheet‑metal work, busbar fabrication, assembly and routine testing are completed in‑house. We offer 12‑24 months factory warranty, remote technical guidance and spare‑part supply. Quotation is based on confirmed technical drawings; no hidden downgrade of short‑circuit rating or material specification.
For projects requiring high‑reliability low voltage withdrawable switchgear, our MNS series provides stable modular draw‑out performance for both green‑field construction and plant upgrade scenarios.
Request A Quotation
Please send over your electrical single‑line diagram, main busbar parameters, required drawer unit list and site constraints. Our engineering group will return customized configuration, general arrangement drawings and competitive quotation within 24‑48 hours.
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