説明
Scope
LW28 Series Universal changeover switch mainly used for AC 50Hz, rated voltage up
To 380V and below, DC voltage up to 220V, rated current to 160A electrical circuit for
Manually infrequent making or breaking the circuit for the purposes of control and
Conversion, can also controlling three-phase asynchronous motors and circuit
Directly as the purposes of master control and measurement. The products widely
使用済み, instead of the various national switch, can be used as the circuit control switch,
Measuring equipment switches, motor control switches and the master control
Switch, and welding machine switch and so on.
Compliance with standards: The changeover switch use to the main circuit switching
And direct control comply with GB14048.3-2001
The changeover switch use to master control comply with GB14048.5-2001
Normal Working Conditions
1. The ambient air temperature does not exceed +40º C, the average temperature
Within 24 hours and not more than +35º C.
2. The ambient air temperature is not lower than -5º C.
3. Installation site altitude does not exceed 2000m.
4. The relative humidity of the air no more than 50% when the maximum
Temperature is +40º C and at a lower temperature allows a higher relative
湿度, such as when temperature is 20º C the relative humidity reach 90%.
To condensation occasionally due to temperature changes should take speci