Insulated flexible busbar MMC 40x1x3 120mm² 2m MOFLEX 82193001

Flexible High Current Density Energy Distribution Solution

The MOFLEX busbar with dimensions 40x1x3 mm and a cross-section of 120 mm² represents a unique combination of tape flexibility and the performance of electrolytic copper Cu-ETP. Thanks to the use of self-extinguishing PVC insulation with UL 94 V-0 rating in black color, the product ensures electrical safety at voltages up to 1000 V AC or 1500 V DC. The construction based on thin, multi-layer copper tapes allows for a significant reduction of the skin effect – compared to a traditional copper conductor of the same cross-section, this busbar occupies up to 60% less space, which is crucial in compact switchboards.

For the installer, this means the possibility of installation in locations where a rigid busbar or thick cable would be impractical. High flexibility (elongation up to 200%) facilitates routing in hard-to-reach areas, while the material maintains a tensile strength of 15 N/mm². The insulation not only protects against short circuits but also operates within a wide temperature range: from -40°C to +105°C, making it suitable for both industrial halls and technical rooms with large thermal fluctuations.

Key Construction Advantages and Practical Applications

The main advantage of this model is cross-section optimization while maintaining high current carrying capacity. The MOFLEX busbar with dimensions 40x3 mm (120 mm²) carries a current of 732 A, which in the case of a standard conductor would require a significantly larger diameter or the use of several parallel cores. Thanks to this:

• The skin effect is reduced – current flows more efficiently through the entire surface of many thin tapes, rather than only through the outer layers of a thick cable.
• Space is saved – a smaller physical cross-section facilitates cable bundle routing and installation in enclosures with limited capacity.
• Installation is simplified – the material can be bent without special tools for bending rigid busbars, and the insulation protects against mechanical damage during operation.

The product is made of copper with 99.90% purity, guaranteeing low resistivity and stability of electrical parameters over time. Insulation strength exceeding 20 kV/mm further increases the safety level when working at rated voltage. It is worth noting that this busbar is manufactured according to European standards, which often correlates with precision of workmanship and repeatability of quality of raw materials used for the production of copper tapes and the insulating coating.

Application in Industrial Installations and Switchboards

MOFLEX busbars are ideal as connecting elements in main switchboards (G), flush-mounted switchboards, and emergency power supply systems (UPS). Their flexibility allows compensation for vibrations or minor structural displacements without the risk of conductor cracking or contact damage. Therefore, they are often chosen for:

• Connections of electric motors and frequency converters where mechanical vibrations occur.
• Photovoltaic systems (DC), where high DC voltages (up to 1500 V) and resistance to atmospheric conditions (inside enclosures) are required.
• Energy distribution in server rooms and data centers where cable packing density is high.

The conductor material is electrolytic copper Cu-ETP with 99.9% purity, and the nominal cross-section is 120 mm² with external dimensions of 40x1x3 mm. Under these conditions, the busbar achieves a current carrying capacity of approximately 732 A. The rated voltage is 1000 V AC or 1500 V DC, with UL 94 V-0 insulation class ensuring self-extinguishing properties. An additional advantage is insulation strength exceeding 20 kV/mm and an operating temperature range from -40°C to +105°C. This model is characterized by a working length of 2 meters.

It is worth remembering that despite high flexibility, during installation one should avoid sharp bending of the material at an angle smaller than the manufacturer's recommended bending radius, to avoid damaging the structure of the copper tapes or the insulating coating. PVC insulation also provides abrasion resistance when pulling through cable ducts or guides in rack cabinets.