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.
Apple Phones. Apple's first smartphone was the ROKR E1, released on September 7, 2005. However, the ROKR was an Apple and Motorola collaboration and Apple was not happy with Motorola's contributions. Within a year, Apple discontinued support for the ROKR. On January 9, 2007, Steve Jobs announced the new iPhone at the Macworld convention.