Serial Surge Protector, RS-422/485 Data Line, Fused

  • Protects RS-422 or RS-485 ports
  • 600W serial circuit surge suppression
  • 125 mA fast-acting PCB fuses
  • Simple in-line installation
  • One time use, disposable unit
Single stage surge protectors offer a high degree of protection with Transient Voltage Suppressors (TVS) for each protected line. Model 485FPP has 600W Transient Voltage Suppressors to clamp voltages without adversely affecting normal RS-422/485 data. Fast-acting 125 mA PCB fuses to protect RS-422 and RS-485 circuits against transient voltages that are too long or too large for normal suppression. The 485FPP has 4 wires and terminal blocks for easy installation inline between the data cables – as close as possible to the serial port. Once a fuse is blown, the unit should be disposed and replaced.

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  • Technology


  • Technology

    BB-485FPP Serial




  • Introduction to B+B Data Line Surge Suppressors

    Introduction to B+B Data Line Surge Suppressors

    This course explains how surges happen and why surge suppressors are important in protecting against system damage and data upheaval. Learn about the different types of surge suppressors available from Advantech B+B SmartWorx and how they provide surge protection. Click Banner to Take Course.