Outline

MNS LV withdrawable switchgear (hereinafter referred to as device) is manufactured by standard module through consulting  MNS series low voltage switch cabinet of Switzerland ABB Co-mpany, and synthetically improved. The device is applicable to the  system with AC 50Hz, rated working voltage 660V and below, used as control device for various power generation, transmission,  distribution, power transfer and power consumption device. It is widely used in low voltage distribution system of various mining  enterprise, tall building and hotel, municipal construction etc. Besides the general land use, after special disposal, it also can be  used for marine petrol drill taken platform and nuclear power station. The device accords with international standard IEC439-1 and national standard GB7251.1.

Use environmental conditions

1. Ambient air temperature: -5℃ ~+40℃ and the average temperature should not exceed +35℃ in 24h. 

2. Air condition: With clean air. Relative humidity should not exceed 50% at +40 ℃ . Higher relative humidity is allowed at lower  temperature. Ex. 90% at +20℃ . But in view of the temperature change, it is possible that moderate dews will produce casually. 

3. Altitude above sea level should not exceed 2000M. 

4. The device is suitable to the transportation and store with following temperature :-25 ℃ ~+55 ℃ , in short time (within 24h) it  reaches +70 ℃ . Under the limiting temperature, device should not suffer damage that can't recover, and it can works normally  under normal conditions.

5. If the above operating conditions not meet user's demand. Consult with manufactory. 

6. Technical agreement should be signed additionally if the device is used for marine petrol drill taken platform and nuclear power  station.

Structural features

The basic cabinet of device is combined assembly structure. Basic structural pieces of cabinet is zinc plated, connected and  firmed into basic bracket through self tappinglocking screw or 8.8 grade square corner screw. According to the change demand  of project, additionally add corresponding gate, closing board,baffle plate, installationsupport and the components of bus bar,  function units, to assemble a complete set of device. Perform modulus to interior component and compartment size (Modulus  unite=25mm).