Cranford Controls

Industrial Indicator Tower

Product Overview

The STB3 is a customisable visual signals featuring a tower of 3 AlertAlight ST-L101X type beacons. Each beacon position can contain either a Xenon or high output L.E.D. light source. The STB3 assembly features a pre-wired junction box and cable loom enabling the end user to determine beacon type and position during installation.


  • Multiple configurations of Xenon and L.E.D. beacons.
  • Internal cable loom and termination PCB simplifies installation.
  • Common negative/neutral supply minimises cabling.
  • Available with red, white or grey housing.
  • High output L.E.D. unit can be set to steady or flashing.
  • Sealed to IP66.
  • Tropicalisation available on request.
  • Can be combined with Sonora SONF1 audible signal.


Cable entries 2 x M20 clearance
Ingress Protection IP66
Housing material UL94V0 & 5VA FR ABS
Housing colour RAL3000 Red, RAL7038 Grey and White
Lens material PC
Fixings Stainless Steel
Operating temp -25° to +55°C
Storage temp -40° to +70°C
Relative humidity 90% at 20°C
STB3 Weight 0.85kg

Part Numbers

STB3 Junction box assembly for 3 x L101 beacons 
STB3DC[x] 12/24Vdc
STB3AC[x] 115/230Vac
ST-L101X L101 Xenon Beacon 5J
ST-L101XDC012[x] 12Vdc
ST-L101XDC024[x] 24Vdc
ST-L101XAC115[x 115Vac
ST-L101XAC230[x] 230Vac
 T-L101H L101 L.E.D. Beacon
ST-L101HDC030[x] 10-30Vdc
ST-L101HAC230[x] 90-260Vac