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Mersen

Surge-Trap® SPD Type 1 STT4X Series

The Surge-Trap® SPD Type 1 STT4X Series is part of the Mersen (formerly Ferraz Shawmut) disconnect switches line, distributed by Gross Automation.

Surge-Trap® SPD Type 1 STT4X Series

The Surge-Trap® Type 1 STT4X Series meets requirements for UL1449 Third Edition. It provides a two-year warranty and offers an economical replacement for the former surge arrestor category. The STT4X features TPMOV® technology inside making it a no-fuse surge suppressor that doesn't require the use of additional overcurrent protection. It can be installed upstream or downstream of the main disconnect.

Specifications

SpecificationValue
RatingsAC:; Surge : 50kA per phase; Volts : 120V to 600V; SCCR : 200kA; Nominal discharge current : 20kA; Operating & storage temp : -25C to +60C; Enclosure : STT2: NEMA 2 : STT4X: NEMA 4X; Wiring size : 16 #12 AWG integral leads; UL 1449 Third Edition File E210793; Type 1 listed for United States; Type 2 listed for Canada; RoHS Compliant; ANSI/IEEE C62 41; UL 96A lighting protection (master label most models); CE; AC Distribution; Power supplies; Industrial; Commerial; Residential; Telecommunications; IT / Data centers
FeaturesCompact design; Panel mount; No additional overcurrent protection devices required; 200kA short ciruit current rating (SCCR); UL 1449 Third Edition Type 1 listed; NEMA 4X for outdoor applications; Status LEDs; Two-year warranty

Features

  • Compact design
  • Panel mount
  • No additional overcurrent protection devices required
  • 200kA short ciruit current rating (SCCR)
  • UL 1449 Third Edition Type 1 listed
  • NEMA 4X for outdoor applications
  • Status LEDs
  • Two-year warranty

Ratings

  • AC:
  • Surge : 50kA per phase
  • Volts : 120V to 600V
  • SCCR : 200kA
  • Nominal discharge current : 20kA
  • Operating & storage temp : -25C to +60C
  • Enclosure : STT2: NEMA 2 : STT4X: NEMA 4X
  • Wiring size : 16 #12 AWG integral leads
  • UL 1449 Third Edition File E210793
  • Type 1 listed for United States
  • Type 2 listed for Canada
  • RoHS Compliant
  • ANSI/IEEE C62 41
  • UL 96A lighting protection (master label most models)
  • CE
  • AC Distribution
  • Power supplies
  • Industrial
  • Commerial
  • Residential
  • Telecommunications
  • IT / Data centers

Documentation