Product Overview
The MNSZ Low-Voltage Withdrawable Switchboard is a modular, highly compact low-voltage switchgear designed and manufactured in strict accordance with the IEC 61439 international standard. It is developed to meet the stringent global requirements for flexibility, reliability, and safety in modern power distribution systems. The cabinet employs a standardized withdrawable module design, allowing for flexible configuration and online hot-swap maintenance of functions such as power distribution, control, and compensation. Its core advantages lie in its exceptional short-circuit withstand capability, high degree of customization, and optimized space utilization, making it an ideal solution for safe, efficient, and intelligent power distribution and control in data centers, advanced manufacturing, smart buildings, and critical infrastructure.
Technical Specifications
|
Parameter Category |
Technical Specification |
|
Rated Operational Voltage |
400V, 690V, AC 50/60Hz (or 480V, 600V, 60Hz for North American markets) |
|
Rated Insulation Voltage |
1000V AC |
|
Rated Current (Main Busbar) |
Up to 5500A |
|
Rated Short-Time Withstand Current (Icw) |
100kA (RMS) @ 1s (typical, can be designed to requirements) |
|
Rated Peak Withstand Current (Ipk) |
220kA |
|
Rated Breaking Capacity (Icu) |
Compliant with IEC 60947-2, up to 150kA |
|
Degree of Protection (IP Code) |
Standard IP30, IP40; Options: IP41, IP42, IP54 |
|
Conformity Standards |
IEC 61439-1 & IEC 61439-2 (Type-Tested Assembly, TTA) |
Core Features
1. Fully Modular Construction: Based on the proven MNS platform, all functional units are standardized, withdrawable modules, offering maximum configuration flexibility and maintenance convenience.
2. High Short-Circuit Withstand: Verified through full type-tests, the main busbar system and feeder units possess excellent dynamic and thermal stability, ensuring safety under extreme short-circuit fault conditions.
3. Advanced Standardized Design: Strictly follows IEC 61439 standards, guaranteeing global technical compliance, safety, and interchangeability of equipment.
4. Smart Power Interface: Optional integrated intelligent monitoring unit supports various industrial protocols such as Profibus-DP, Modbus TCP, Ethernet/IP, providing data interfaces for energy management systems.
5. Optimized Space Layout: Compact structural design maximizes cabinet space utilization while ensuring heat dissipation and electrical clearances, saving installation footprint.
Typical Applications
This switchboard is designed for global projects demanding high power supply continuity, flexibility, and intelligence. Primary applications include:
Industrial Sector
Main power distribution systems and Motor Control Centers (MCC) in industries such as automotive, semiconductor, chemical, and pharmaceutical.
Critical Infrastructure
Core low-voltage switchrooms in data centers, airports, hospitals, and commercial complexes.
Energy Sector
Auxiliary power and plant distribution systems in power plants, offshore platforms, and renewable energy power stations.
Utilities
Power distribution and control centers for large municipal facilities and rail transit systems.
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