I. General

The frames of MNS series are highly flexible. There is no need of repair after installation. Different standard components can be installed in the gears to meet various kinds of applicable requirements. Because combined design is used in the entire systems including electric appliance structure, this optimized design can meet different components’ demands and adapt to different working environment, to reach corresponding protection level.

Both the design and material of MNS system can minimize the danger of fault arc occurrence. Once it occurs, it can be extinguished in time.

MNS system meets the requirements of Appendix AA in IEC298, it is proved through the fault arc measurement by an independent testing organization, as well as the type test, during the test, there is no effect on adjacent extracting type components after fault arc occurrence. After arc extinction, drawer-type components still can be operated after cleaning up. There is no change in the switchgears for the components with mechanical interlocks, even on the isolation position, there is no fault arc marks on switchgears surface.

There is no CFC or halogen contained in plastic material used in MNS system, this kind of plastic material has a flame-retardant and self-extinguishing characteristics. Compare with traditional product, the innovative MNS system has more advantages.

II. Technical Parameters

Rated Voltage		Rated Current
\	\	Brunch Bus	\
Overvoltage Level	III	Rated Current	To 1200A
Pollution Level	3	Rated Peak Withstand Current	To 110KA
Rated Frequency	50-60Hz	Rated Short-time Withstand Current	To 50KA