Based on strict safety measures to prevent accidents in transportation machinery, quarrying,power generation, wood processingand other industries, the application of safety wire switches has become a necessary technology.The so-called hazardous arearefers to machine parts that are moving without safety protection devices.Compared with the emergency button switch, the switchcan be operated at any place of the cable to achieve safety protection.
2.Working Principle Fix the cord switch according to the installation instructions.When the switch is pre-tensioned, the contacts 11-12 and 21-22are turned on.When the cable is pulled or disconnected, the contacts are forced to separate and the state is locked, unlockingcan be achieved by a button or key.
Note: 1. Power factor of inductive load = 0.4(AC), time constant = 7msec 2.Inrush current of bulb load is 10 timesof stable current 3.Inrush current of motor load is 6 timesof stable current