CENTERLINE 2500 with ArcShield Technology. 1  Helps to reduce arc flash hazards and provide you with increased protection against internal electrical arcing faults. 2  Provides personnel and assembly protection per IEC/TR 61641:2014. 3  Includes arc-resistant latches on all doors for pressure relief to keep the door latched to the MCC during an arcing fault.
Follow Business Insider: Rob Stothard/Getty. People didn't start using the term smartphone until 1995, but the first true smartphone actually made its debut three years earlier in 1992. It was called the Simon Personal Communicator, and it was created by IBM more than 15 years before Apple released the iPhone.
But it also of course had a notepad, an email client and a calendar. Without a doubt, the Simon was the first smartphone in history, but it would retire before gaining fame. Ericsson was the first brand to actually coin the phrase âsmartphoneâ, with the release of its GS88 in 1997. By all accounts, though, Nokia actually beat Ericcson to the finish line a year earlier with what many consider to be the quintessential smartphone, the Nokia 9000 Communicator.