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Main Distribution Switchboard

Introduce MSB (Main Distribution Switchboard) is a kind of electrical cabinet installed right after the low voltage substations (from 15kV down to 380VAC), the major function of MSB cabinets is connect & disconnect, safety protection for electrical systems. Rated current can reach approximately 6300A. Cabinets are designed with many compartments with separate functions such as: Input ACB / MCCB, Output MCCB/MCB, Capacitor , ATS (Automatic transfer switch), Monitoring remotely via GPRS...etc. MSB cabinets are designed and assembled according to IEC 61439-1-2 standards.
Application distribution, reactive power compensation
General information
  • Manufacture following Form 3B.
  • The cabinet surface is applied with electrostatic powder coating on production lines, surface treatment according to the process of ensuring quality and durability in period.
  • Modular cabinet structure can be expanded.
  • Divided between compartments in cabinets and modules with steel plates.
  • The cabinet is naturally or forcedly ventilated.
  • Doors or panels are removable for access in the front or rear.
  • Manufactured according to IEC 61439 - 1 - 2 standards.
Application
– Distribution
– Reactive power compensation
 
Standards
IEC 61439 - 1 - 2
Quatest 2
 
Full Type Test
KEMA (Europe)
 
Number of Pole 3P/4P
Rated operational voltage (Ue) 220-230/380-415 VAC
Rated voltage (Ui) 1000V
Rated impulse withstand voltage 8 - 12 kV
Overvoltage level III/IV
Frequency 40 - 60 Hz
Rated current (In) 100A - 6300A
Rated short-time withstand current 150kA
Earthing arrangements TN, TN-C, TN-S
Maximum temperature increase 50°C
Ingress Protection IP42, IP55, IP65
Structure, Enclosure Made of 1.2mm - 2mm thickness steel sheet, Hot-dip galvanization or electrostatic powder coating
Layer Door: Single or Double.
Material Imported steel sheet ensures the standard
Internal partition 1mm – 1.5mm thickness tole, hot-dip galvanization or electrostatic powder coating
Partitioning Forms Form 1 - 4
Dimension H: 2000/2200/2400
W: 600/700/800/900/1000/1100/1200
D: 600/700/1000/1200/1400/1600
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STPower Joint Stock Company

Address: Lot No.47, 2nd Street, Da Nang Industrial Zone, Da Nang City, Viet Nam
Phone: 0905 959 564 - 0236 3959 797
Fax:
Email: info@stpower.com.vn

30th Floor, Room OT11, Landmark Plus Building, 720 Dien Bien Phu Street, Ward 22, Binh Thanh District, Ho Chi Minh City

- CT6B - Vinh Diem Trung Urban Area, Nha Trang City, Viet Nam

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