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ZZZ-Transtector I2R Indoor DIN-Rail DC Surge Protectors (SPDs)

Transtector I2R Indoor DIN-Rail DC Surge Protectors (SPDs) use SASD, MOV, or GDT technology to protect critical equipment that operates on a 48VDC electrical service. These Transtector DIN-rail-style SPDs include visual suppression status indicators, dry contact remote annunciation terminals, and replaceable suppression and fuse modules. The I2R Indoor DC series provides effective protection against transients generated by lightning and internal switching events. The SPDs support long-term system reliability by safely shunting high amounts of transient energy while maintaining a very low clamping voltage.

Features

  • SASD, MOV, or GDT technology
  • Visual suppression status indicator
  • Dry contact remote annunciation terminals
  • Replaceable suppression and fuse modules
  • DIN-rail mount

Applications

  • Industrial automation
  • Controls and sense loops
  • Telecommunications base stations
  • IT and data centers
  • Wastewater treatment
  • Railroad trackside signal circuits (1101-1157)
  • Oil and gas
  • LED lighting
  • Photovoltaic power systems (I2R-T2DC-48S-TT)

Specifications

  • 48VDC service voltage
  • 57VDC to 85VDC maximum continuous operating voltage
  • 5A to 50A 8/20μs surge current
  • 1ns to 25ns response time
Published: 2026-01-29 | Updated: 2026-01-30