Main switchboard

Main switchboard - MSB

Standard IEC 61439 - 1,2
Rated input voltage (VAC) 380/400 VAC
Rated output voltage (VAC) 220 VAC, 380 VAC
Rated current (A) 25÷6300A
Cutting current (kA) 25÷100kA
Frequency (Hz) 50/60Hz
Ingress Protection IP54 (Outdoor)
IP42 (Indoor)
Form  1, 2a, 2b, 3a, 3b, 4a, 4b
Number of layers 2
Finished surface Powder coating
Materrials Sheet metal 1.2÷2.0mm 
Product information

Main distribution switchboard (MSB) or main switchboard is made according to IEC 61439 - 1.2. Electrical enclosures are made of galvanized steel and painted with a powder coating. Other parts such as the lid of the assembly, the side and the back of the assembly can be easily dismount, convenient for all users in the installation and maintenance work, depending on the opinion of customers that the assembly has can lock design or not.
Arranging the equipment inside the electrical panel can suit each customer requests, from the type of electrical panel (form) type 1 to the form of electrical cabinet (form) 4B. The ingress protection of the assembly against the impact of the external environment (IP index) from IP3X, IP4X, to IP5X. Some parameters of the total electrical cabinet MSB will be designed depending on the requirements of customers.


Main function of main switchboard:

+ Circuit breaker

+ Protection of safety of the additional electrical system. Rated current can reach 6300A.

+ Structures are designed with multiple compartments, each structure is designed with separate functions such as: ACB / MCCB total compartment, compartment for MCCB / MCB output load, capacitor bank compartment, ATS transfer compartment.

+ Remote monitoring via GPRS ... MSB cabinets are designed and assembled according to IEC61439-, 2.


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