DTW 12A AC Surge Protector

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The DTW-12A is a powerful, multi-stage surge protector designed to protect sensitive equipment in ITS cabinets from harmful transients.

The unit incorporates high energy hybrid components arranged in a manner to offer the lowest UL surge voltage rating.  Surge protection components are thermally protected.  The unit also incorporates an inline, high capacity short circuit fuse for additional safety.

The DTW-12A is enclosed in a NEMA 4X weatherproof enclosure to offer excellent protection from corrosion and extreme environments.
In addition to all of the superior surge protection characteristics, the DTW-12A also comes with a 10 year, no questions asked warranty. 

Download Specifications Sheet (PDF}


Peak Surge Current (8x20us) 64kA
UL1449 SVR Rating  330 V
Operating Voltage  120 VAC
Maximum Operating Voltage 140 VAC
Continuous Service Current 12 Amps Max.
Operating Temperature -40 to 85°C
Dimensions 4.33" x 4.33" x 2.5"
Mounting  Surface Mount
Spike Test using ECAT System 8x20us Waveform Module:
                                         6,000 V @ 500 A  
                                        6,000 V @ 3,000 A  


  • Multi-Stage Surge Arrestor
  • Protects Against Lightning And Other Power Surges
  • Clamps Harmful Surges Quickly
  • NEMA 4X Enclosure
  • Immediately Self-Restores After Each Surge
  • Internal RIS Filtering
  • Thermal Overload Protection
  • Short Circuit Fusing
  • Complies with UL1449
  • 10 Year Warranty