856T Control Tower Stack Lights

Our Bulletin 856T Control Tower™ Stack Light system gives users maximum flexibility in meeting the widest range of applications with a reduced number of components. This system uses a modular design that incorporates brighter LED illumination and a broad offering of sound technologies. All signals in the system are 24 V AC/DC powered, which means that just three power modules can cover the entire system.


  • Offers reliable performance in tough environmental conditions with IP66/67 ingress rating
  • Offers easier selection thanks to a reduced number of components
  • Includes multi-function and multi-channel light modules and sounders which minimize installation and set-up time
  • Provides internal DIP switches to select module output or function
  • Offers a series of different audible choices to complement the visual indication
  • Available for purchase as separate components or as pre-configured, factory-assembled stack lights for optimal flexibility

Product Selection


  • c-UL-us Listed (File No. E14840, Guides NKCR, NKCR7)
  • CE Marked
  • China RoHS
  • KCC (Registration No. R-REM-RAA-856T)
  • RCM (EN 61000-6-2:2005 and EN 61000-6-3:2007 + A1:2011)
  • WEEE

Standards Compliance

  • UL 60947-5-1
  • CSA C22.2 No. 14
  • CE (EN 60947-5-1:2004 + A1:2009; EN 61000-6-2:2005; EN 61000-6-3:2007 + A1:2011; EN 50581: 2012 [2014/35/EU - Low Voltage Directive, 2014/30/EU - EMC Directive, and 2011/65/EU - RoHS Directive])
Looking for Additional Information?

To find additional product information including CAD drawing files, 3D models and more use our Product Catalog.


Resource Publication Number Language
Bulletin 856T 70mm Control Tower Product Profile 856T-PP001
Bulletin 855T to 856T 70mm Control Tower Signaling System Migration Profile MIGRAT-PP036
Signaling Specifications Technical Data 855-TD001
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