MNS series low voltage withdrawable switchgear (hereinafter called “switchgear”) is improved and developed by our company referring to MNS series switchgear of Swiss ABB, is one of advanced low voltage draw-out switchgear. This product consists of standardized modules, furthermore each withdrawable unit has reliable mechanical interlock device, make it more safe and reliable during operating.
This series of switchgear is suitable for operating in the 3-P, 5-W power distribution system of AC 50(60) Hz, rated working voltage 400V, 660V, rated current 5000A and below, for power generating plant, substation, mineral enterprises, building or hotel, airport, dock, broadcast TV center and etc, used for power generation, transmission and distribution, transfer electric energy and the control of electric consumers, moreover capacitor bank can compensate the reactive power for their system.
Comply with GB7251.1-2005 Low voltage switchgear and controlgear, IEC60439-1 Low voltage switchgear and controlgear standard.
Normal service conditions
■ When the ambient air temperature is -15℃-+40℃, the mean value is no greater than+35℃ with in 24 hours.
■ Altitude: not higher than 2000m for the installation site.
■ Relative humidity not exceed 50% at the max temperature of +40℃, higher relative humidity is allowable under lower temperature. For example, RH could be 90% at +20℃, while special measures shall be taken for the condensation occasionally produced due to temperature change.
■ ambient air is not significantly polluted by dust, smoke, corrosive and/or flammable gases, vapours or salt.
