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EMNS Low-voltage Switchgear


EMNS LV withdraw-able switchgear is manufactured by consulting MNS LV switchgear of ABB Switzerland, and synthetically improved. 

It is applicable to systems with AC50-60Hz, rated voltage up to 660V and rated current up to 4000 A.

Highlight Features

  • Type tested, conforms to IEC60439-1, GB7251 standard and CCC certified. 

  • Space saving. Cabinet contains different function units within a smaller footprint, the space on ground would save up to 33% over current solutions.

  • Universal and flexible. By using the 25mm module c-shape profile, it meets the requirements of various structural types, protection grade and operation environment.

  • Modular construction, multifunctional, reliable and safe performance.  

  • Arc proof certified up to 690V, 100KA.

Main Benefits

  • Easy to install and operate, maintenance free. 

  • Optimum protection for personnel and plant.

  • Designed to maximize the prevention of arc fault, and can ensure to crush out the arc in the shortest time. 

  • Adopt high strength anti-flaming type engineering plastic pack in large quantity to prevent burning and to increase safety. 

Mechanical Design 

  • All frames and inner isolation plates are galvanized and passivated. 

  • Door panels and side plates are treated by electrostatic spraying. 

  • Each functional unit can operates relatively independently, and that of out-going lines can be installed with at most 36 circuits.

  • Different types of functional components can be freely installed in a cabinet,such as fixed components and extraction components.

  • Cabinet can be arranged back-to-back. 

Switchgear Drawer type 

TypeNo. Of drawersHeight (mm)Width (mm)Depth (mm)

These five drawer units can be assembled in single or mixed way. 

Drawer Type8E/48E/28E16E24E
Max. Accommodated Unit3618943


Used as control device for various power generation, transmission, distribution, transfer and power consumption sites such as:

  • Main/auxiliary power cabinet,power distribution cabinet

  • Motor power supply and motor control center

  • Open loop or closed loop control system electronic cabinet

  • Power system

  • Petrochemical

  • Industrial and mining enterprises

  • Public utilities

  • Municipal engineering and commercial buildings

It also can be used for marine petrol drill taken platform and nuclear power station.

Rated insulation voltage1000V
Rated operating voltage400V/690V(1000V)
Rated frequency50HZ
Main busbar rated currentUp to 6300A
Main busbar rated short-time withstand currentUp to 100KA(1S)
Main busbar rated peak withstand currentUp to 220V
Distribution busbar (vertical busbar) rated currentUp to 1800A
Protection levelIP4X/IP55*
Internal separationForm1 to Form4b
Distribution system formTN-C,TN-C-S,TN-S,TT,IT
Material groupa
Overvoltage category/
Dimension (mm)Height2200
Color of EnclosureRAL7035

Operating environment

1Ambient temperature-5℃ - +40℃
2Daily average temperature (Within 24h)≤35℃
3Altitude (Indoor installation)≤2000Meter
4Relative humidity50% (+40℃) - 90% (+20℃)
5Inclination (Vertical installation)≤5℃

- If the above operating conditions not meet user’s demand, consult with manufacturer.

- Technical agreement should be signed additionally if the device is used for marine petrol drill taken platform and nuclear power station.

Current level

  • EMNS:400,500,630, 800, 1000, 1250,1600,  2000, 2500,3200,4000,5000,6300.(IP40)

  • GGD: 400,630,800,1000,1250,1600,2000,2500,3150,4000. (IP40)

  • Blokset: 400,500,630,800,1000,1250,1600,2000,2500,3200,4000,5000,6300. (IP40、IP42)

  • xEnergy: 400,630,800,1000,1250,1600,2000,2500,3200,4000,5000,6300. (IP40)

  • MDmax-ST: 1600,2000,2500,3200,4000. (IP40)

Product Inquiry


  +8618874901949



Widely used in the national grid, subway, petrochemical, automotive, telecommunications and other fields...

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