Main Low Voltage Switchboards of Truong Nam Hai Co., Ltd are the modular designed which can be tailor-made to meet the client’s exact specification. It can be a Line straight, L shape or the U shape to fit in your limit space switch room.

Assembled from standard parts, this versatile system can be modified during production or even on-site to keep up with any last-minute design changes and inspection before active operation at site.

The systems design with the modular system also allows us to join two or more frame sections together enabling a larger cubicle for housing bulky protection devices.

In-house testing to ensure our reliable & quality products.

General characteristics

Standard: IEC 61439-1 & 61439-2

Type Tested Assemblies: Yes, with 4000A.

Rated Insulation Voltage: 690VAC.

Rated Operational Voltage: 400VAC.

Rated Impulse Withstand Voltage: 6kV.

Degree of Pollution: 3.

Frequency: 50Hz.

Main Busbars: up to 6300A.

Rated Peak Withstand Current: 143kA.

Rated Short-time Current: 65kA / 1s.

Degree of Protection: up to 54.

Segregation Form: up to 4b.

Material: Steel Sheet.

Metal Sheet Thickness: 2mm.

External Surface Protection: Powder Coated.

Painting Thickness: more than 50 micro mm.

Standard Color: RAL 7032, 9002.

Standard Dimension :

High standard : 2150 mm

Width: From 600 to 2000 mm

Depth:  From 600 to 1600 mm