Surge Protection for Outdoor and Commercial LED Lighting

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

Surge-Trap® UL Certified STLB Series - 10kV/10kA

STLBT23 is a robust 10kV, UL Type 4 device 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, STLBT23 is a widespread market solution amongst OEM manufacturers of LED lighting systems.



  • Universal, certified SPDs which can be safely used in any luminaire and any installation
  • Parallel or series connected device
  • End-of-life indication via LED or series disconnection
  • Leakage Current Free
  • Global Compliance to ANSI/UL/CSA and IEC
  • Versatile mounting design accomodates for vertical or horizontal mounting


  • Voltage Range (VAC) 100 … 277 VAC
  • Connection Terminal Type Box
  • Body Material Polycarbonate
  • SCCR 10 kA
  • Operating Temp °C (Min/Max) -40 to +85 °C
  • Storage Temp °C (Min/Max) -40 to +85 °C
  • Wiring Range 13 … 18 AWG
  • Nominal discharge current 3 kA
  • Enclosure IP 20
  • Standards ANSI/UL1449 4th Edition, Type 4 SPD, File E468946
    EN 61643-11 Type 2+3 SPD
    IEEE/ANSI C62.41.2 C-High
  • Application Indoor/Outdoor LED Lighting, New and Retrofit
  • ROHS Compliant Yes
  • Lead Free Yes
  • CE conformity Yes


  • STLBT23-10K320V-C3U-DD - 83230320


Where to buy


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