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                                                                        MMNS LOW-voltage Withdrawable Switchgear
                                                                        MMNS LOW-voltage Withdrawable Switchgear Products: MMNS Low-voltage Withdrawable Switchgear is based on the electrical sector, the majority of electrical consumers and the requirement of the design department, to meet the development tenden
                                                                        Product Details
                                                                        MMNS LOW-voltage Withdrawable Switchgear


                                                                        Products:
                                                                        MMNS Low-voltage Withdrawable Switchgear is based on the electrical sector, the majority of electrical consumers and the requirement of the design department, to meet the development tendency of electrical. This device is suitable for power plants, transformer substation, petrochemical, metallurgy, steel rolling, light industry and textile factories, and residential quarters, high-rise buildings and other places, as the AC50-60Hz, rated working voltage 660V and below, the low power distribution system and motor control centers, capacitor compensation, power conversion, distribution and control purposes.
                                                                        Technical Features:
                                                                        1
                                                                        、Frame structure is connected as a result of the adoption of new technology, the use of all framework parts assembly is very convenient. 
                                                                        2、In order to effectively prevent short circuit accident between the arcing and the bus bar. the cabinet rooms use steel plate or high-strength fire-retardant plastic panel to separate, and the upper and lower drawer has a metal plate isolation with ventilation holes. 
                                                                        3、The compact structure uses small space to contain multi-function units. Five kinds of drawer unit(8E/4、8E/2、8E、16E、24E)can be single assembly in the cabinet, also be mixed assembly. 
                                                                        4、The drawer unit uses mechanical linkage, has obvious location sign of opening, closing, text, pull, isolation. 
                                                                        Condition:
                                                                        1.      Ambient temperature: -15℃~+40
                                                                        2.      The average temperature should be under +35 within 24 hours.
                                                                        3.      Altitude: 2000m
                                                                        4.      Atmospheric conditions: air cleaner, the relative humidity at the highest temperature is +40 less than 50%, at a lower humidity , for example, 90% at +20, but to take in to account the temperature changes, there may occasionally produce moderate condensation.
                                                                        5.      Pollution level is III.
                                                                        Technical parameters:
                                                                        Serial No. 
                                                                        Items
                                                                        Unit
                                                                        Number
                                                                        1
                                                                        Rated voltage
                                                                        V
                                                                        400、690
                                                                        2
                                                                        Rated current
                                                                        A
                                                                        630-6300
                                                                        3
                                                                        Rated current(the main bus)
                                                                        A
                                                                        ≤6300
                                                                        4
                                                                        Rated current(the vertical bus)
                                                                        A
                                                                        4000
                                                                        5
                                                                        Rated short time withstand current
                                                                        kA
                                                                        The main bus80、 100、150
                                                                        6
                                                                        Rated peakwithstand current
                                                                        kA
                                                                        176、220
                                                                        7
                                                                        Rated short time withstand current(the vertical bus)
                                                                        kA
                                                                        50、80
                                                                        8
                                                                        Cabinet level protection
                                                                         
                                                                        IP3X 
                                                                        IP4X
                                                                        IP54
                                                                         
                                                                        Certificate
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