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MNS_nt Low-Voltage Draw-out Switchgear

MNS_nt Low-Voltage Draw-out Switchgear
MNS_nt Low-Voltage Draw-out Switchgear

MNS_nt Low-Voltage Draw-out Switchgear

A modular low-voltage switchgear built with standard profiles, featuring Form 4 full segregation, 6300 A high current capacity and up to 36 circuits in a single cabinet.

8E standard module
6300 A high current
CQC/CB/CE certified
IP54 high protection
36 circuits per cabinet
Form 4 full segregation
Model:MNS_nt
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Key Benefits of MNS_nt Low-Voltage Draw-out Switchgear

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Form 4 fully segregated safety design
Internal compartments meet IEC 439-1 Form 4 requirements and are completely segregated from each other to prevent fault propagation.
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Ultra-high distribution density
Based on the 8E basic unit, one MCC cabinet can accommodate up to 36 functional units; double-sided operation can reach up to 72 units.
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Flexible combination solutions
Supports mixed PC/MCC configurations and three structures: draw-out, plug-in and fixed, adapting to all distribution needs.
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Reliable anti-misoperation interlocking
Dual mechanical interlocking of the low-voltage circuit breaker handle and drawer position effectively prevents various misoperations and supports inter-cabinet interlocking.

Product Overview

MNS_nt is a new-generation low-voltage draw-out switchgear built by NATUS Electric with standard profiles. It is suitable for power supply and distribution systems with AC 50/60 Hz, rated operating voltage up to 690V and rated current up to 6300 A.
Compared with traditional low-voltage switchgear, the MNS_nt low-voltage switchgear adopts a C-shaped upright combined assembly structure. All parts use 25 mm standard mounting module holes and are connected by self-tapping locking screws or 8.8-grade bolts, delivering high assembly accuracy and good interchangeability. The internal compartments reach IEC 439-1 Form 4 segregation, and the enclosure protection class can reach IP54. It supports mixed PC/MCC installation and two busbar arrangements, side outgoing and rear outgoing, providing flexible solutions. The low-voltage draw-out switchgear fully complies with GB/T 7251, IEC 61439 and German VDE 0660 standards and is widely used in power generation, buildings, steel, cement, mining, petrochemical, papermaking and other industries.
MNS_nt Low-Voltage Draw-out Switchgear

MNS_nt Low-Voltage Draw-out Switchgear Structure

There are two types of horizontal bus bar for the draw-out switchgear. For the switchgear with side outlet, the horizontal bus bar is arranged at the rear of the cabinet. For the switch cabinet with the outlet line at the back of the cabinet, the horizontal bus bar is arranged on the top of the cabinet.
Cabinets with horizontal bus bars arranged on the side and top cannot be arranged in the same arrangement when they are arranged. Thee protective conductor (PE wire), which is individually arranged and runs through the entire arrangement, is connected with the exposed conductive part (frame) to form a complete protective grounding system.

Technical Advantages

01.
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Self-healing corrosion protection with aluminum-zinc coated sheet
The MNS Low Voltage Switchgear adopts imported aluminum-zinc coated steel plates for the frame, internal partitions, and functional units. During processing, the aluminum-zinc coating automatically covers cut edges, providing excellent self-healing corrosion resistance without additional galvanizing and extending the cabinet service life to more than 30 years.
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Full-series international standard certification

The Low Voltage Draw-out Switchgear has passed type tests conducted by national authoritative testing institutions and obtained CQC, CB, and CE certifications. It also complies with the German VDE 0660 standard, meeting the requirements of global export projects and international power distribution applications.

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Multiple optional structure designs

The Low Voltage Withdrawable Switchgear supports standard draw-out, plug-in, and fixed structures to meet different application requirements. Based on a modular low-voltage switchgear design, the plug-in structure simplifies cabinet configuration, reduces contact heating and complex interlocking issues, and improves overall operational reliability.

Technical Specifications

Basic Parameters
Rated working voltageMain circuitV400, 690
Rated working voltageAuxiliary circuitVAC220, AC380, DC110, DC220
Rated insulation voltageMain circuitV690, 1000
Rated impulse withstand voltage 1.2/50 μsMain circuitkV68
Rated working current (at IP3X)Horizontal busbarA≤5000 (single-side operating), ≤3600 (double-sided operating)
Rated working current (at IP3X)Vertical busbarA1000 (draw-out type), 2000 (plug-in MCCB type)
Rated short-time withstand currentHorizontal busbarkA/1 s50, 65, 80, 100
Rated short-time withstand currentVertical busbarkA/1 s50, 65, 80
Rated peak withstand currentHorizontal busbarkA/0.1 s105, 143, 176, 220
Rated peak withstand currentVertical busbarkA/0.1 s105, 143, 176

Application Scenarios
工业行业
石油石化
新能源

MNS_nt Low-Voltage Draw-out Switchgear FAQ

MNS_nt Low-Voltage Draw-out Switchgear is the standard steel-plate door type with protection class IP30-IP54. MNS_nt-D Draw-out Switchgear uses transparent glass doors with an attractive appearance and higher resistance to pollution, dust and splash water, suitable for scenarios with higher protection requirements.
For side outgoing, the cable compartment is on the side of the cabinet and the horizontal busbar is arranged at the rear. For rear outgoing, the cable compartment is at the rear and the horizontal busbar is arranged at the top. The selection mainly depends on the distribution room layout and cable routing.
With the smallest 8E/4 drawer unit, one single-sided MCC cabinet can accommodate up to 36 units; double-sided operation can accommodate up to 72 units.
Yes. MNS_nt Low-Voltage Draw-out Switchgear supports PC and MCC combined structure. In mixed installation, the PC section is arranged in the upper part of the cabinet, drawer units are arranged below, and an 8E empty compartment is reserved in the middle for vertical busbar transition.
The full MNS_nt series Low-Voltage Draw-out Switchgear has passed CQC, CB and CE certification and complies with German VDE standards. It can be exported to most countries and regions worldwide.
The standard Low-Voltage Draw-out Switchgear supports altitudes not exceeding 5000 m. Customized solutions can be provided for altitudes above 5000 m.
The standard maximum current of the horizontal busbar is 5000 A for single-sided operation, with customized solutions supporting up to 6300 A.

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