NSS LED Blank-out Signs


  • Exceptional message visibility and clarity
  • Ideal for all standard traffic control applications
  • Utilizes all standard ITE colors
  • Single or double face models
  • Cost efficient
  • Provides 50,000 / 100,000 hours lamp life
  • Capable of displaying multiple messages
  • Low power consumption
  • Low Maintenance
  • Complete blank out when not energized
  • Housing shall be NEMA 4 rating
  • UL listed components

General Description

  • Each side of a one-way or two-way sign shall be capable of displaying multiple overlaid messages.
  • Legends or symbols shall be formed by single or double rows of LED’s.
  • Legends shall conform to the standard FHWA / MUTCD specification.
  • Custom legends or symbols available for special applications.


Functional Requirements

  • All messages or symbols shall be clearly legible attracting attention under any lighting conditions.
  • The sign shall completely blank out when not energized. No phantom words or legend shall be seen under any ambient light condition.
  • LED illumination display the message(s) or symbol(s).
  • A matte/clear lens mounted in the doorframe shall protect the entire sign face from UV light.
  • Transformers or LED Drivers shall be used to reduce the incoming 120 volts to the manufacturer suggested operating voltage and current.
  • The sign shall be capable of continuous  operation  over  a  range  in temperatures from –35 degrees to +140 degrees Fahrenheit (–37 degrees to +60 degrees Celsius).


Mechanical Construction

  • Housing shall be constructed of extruded aluminum.
  • All components shall be readily accessible.
  • All corners or seams are heli-arc welded to provide a weatherproof seal around the entire case.
  • A continuous stainless steel hinge shall attach the housing and doors.
  • Doors shall be constructed of extruded aluminum and have one side removable to gain access to the sign face.
  • Sign face shall be constructed of aluminum and shall have the LED assembly mounted to it.
  • Sign shall have one or more stainless steel link locks to tightly secure the door to the gasket.
  • A visor shall be provided to protect the sign face from direct sunlight.
  • Drainage shall be provided by drain holes located on the housing

LED Modules

  • LED assembly shall be mounted to flat black aluminum panel.
  • LED’s shall be conformal coated for
  • LED driver(s) shall be attached to panel
Download Datasheet for NSS LED Blank-out Signs