Surge Protection for Outdoor and Commercial LED Lighting

Power Line Protection for the LED Driver in the Fixture (UL & IEC)

Surge-Trap® Type 2+3 - for LED Lighting

STL T23 is the series of robust 10-20 kV combined Type 2+3/Class II+III devices for discharging voltage surges while providing a very fine voltage protection level, in accordance with EN/IEC 61643. Suitable for protection of LED outdoor luminaires (street-light). Due to the exposure of the extremely sensitive LED electronics to lightning–induced overvoltages, STL T23 is a widespread market solution amongst OEM manufacturers of LED lighting systems.



  • Combined voltage pulse (1.2/50μs): 10 kV, 20 kV (Uoc)
  • Maximum discharge current (8/20μs): 10 kA, 20 kA
  • Nominal discharge current (8/20μs): 5 kA, 10 kA
  • Class 1 and Class 2 luminaires, universal solutions
  • Miniature size and easy to install
  • Hardwired, in-line format
  • End of life indication
  • Rated current load (IL): 2.5 A, 10 A (series)
  • Optional: “surge tested and certified” luminary with STL T23 by accredited LAB
  • Back-up fuse: 25 A gG


  • Mounting Hardwired
  • Body Material PA66 CT1
  • Materials Contact Steel
  • Standards IEC 61643-11
    EN 61643-11
    IEE/ANSI C62.41.2
  • Application LED outdoor lighting
  • ROHS Compliant Consult Technical Services
  • Lead Free Consult Technical Services
  • CE conformity Yes


  • STLBT23-20K275V-C4-DD - 83230321
  • STLT23-10K320V-C12 - 83230302
  • STLT23-10K320V-C2-WD - 83230323
  • STLT23-10K320V-C4-WD - 83230322


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