1. 
   Internet kill switch
   An Internet kill switch is the cybercrime and countermeasures concept of activating a single shut off mechanism for all Internet traffic. The theory behind a kill switch is creation of a single point of control for one authority or another to control in order to “shut down the internet to protect...
   Found op http://en.wikipedia.org/wiki/Internet_kill_switch
   
   
2. 
   Interrupter Switch
   A switch equipped with an interrupter for making or breaking connections under load
   Found op http://www.youngco.com/young2.asp?ID=4&Type=3
   
   

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