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Overvoltage Protection Surge-Trap® SPD Surge-Trap Type 1 SPD

About the Surge-Trap Type 1 SPD


The Surge-Trap Type is ideal for indoor applications and is an economical replacement for the former Surge Arrestor category. It features TPMOV technology inside and is a “no-fuse” SPD that doesn’t require the use of fuses or additional overcurrent protection. It can be installed upstream or downstream of the main disconnect.


The Surge-Trap Type 1 SPD product line offers a wide range of voltage configurations, including single phase, split phase, three phase delta, and three phase wye, to meet all needs for indoor NEMA Type 2 applications. It also satisfies National Electric Code (NEC) 2008 SPD requirements. The SPD’s features include a fail-safe design, an IP20 enclosure, easy installation, and mechanical.


Surge-Trap Type 1 SPD is UL 1449 3rd Edition Approved for Type 1 and 2 applications, including service entrances, feeders and branch circuits. With features for both visual indicators, the Surge-Trap Type 1 SPD suits system voltages from 120V to 600V and MCOV rated 180V to 550V. It has a 200kA short circuit current rating (SCCR) and 40kA 8/20µs surge capacity rating per mode. Agency approvals include ANSI UL 1449 3rd Edition, and meets 2008 NEC Article 280 and 285, UL 96A, NFPA 780 and NEMA LS-1 guidelines. Surge-Trap Type 1 SPD offers 2 year product warranty.




  • Compact design
  • Easy to mount
  • No additional overcurrent protection device (fuses) required
  • 200kA Short circuit current rating (SCCR)
  • UL 1449 3rd Edition Type 1 Listed
  • Nominal discharge current (In) of 20KA (10KA on select models)
  • For indoor, NEMA 2 applications
  • Status LEDs
  • Wire markers
  • 5-yr warranty




  • AC distribution
  • Power supplies
  • Industrial
  • Commercial
  • Telecommunications
  • Residential
  • IT / Data centers