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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.
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 bus：80、 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
|
