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ZeroDT - I/O-24

ZeroDT – I/O-24

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The ZeroDT I/O-24 utilizes the latest generation, non-degrading Silicon Avalanche Suppression Diodes (SASD’s) to protect PLC I/O cards. The unit is designed to limit the energy of these surges on 4-20mA current loops, discrete digital lines, digital buses as DeviceNet, FOUNDATION Fieldbus and PROFIBUS PA, without causing any communication degradation, as well as low voltage DC power lines.

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PRODUCT DESCRIPTION:

Electrical Specifications

  • Response Time: <5 nanoseconds
  • Configuration: Series connected, or pass-thru -- protects 2 pair or 4 wires
  • Nominal Operating Voltage: 24 VDC
  • Maximum Pass-thru Current (each line): 8 Amps
  • Maximum Continuous Operating Voltage (MCOV) Line-to-Ground: 36 VDC
  • Nominal Surge Current, INom (able to withstand repeated applications):
    • 8/20 µs (IEEE/ANSI C62.41 Combination Wave), Line-to-Ground: >1,200 Amps
    • 10/1000 µs (IEEE/ANSI C62.41 Long Wave), Line-to-Ground: >130 Amps
  • Voltage Protection Level (VPL):
    • 1,200 Amps, 8/20 µs, Line-to-Ground: ≤65 Vpeak
    • 130 Amps, 10/1000 µs, Line-to-Ground: ≤55 Vpeak

Mechanical Specifications

  • Input / Output Connection: Compression lug, #26 to #14 AWG
  • Module Dimensions: 4.37” H x 3.90” D x 0.5” W (111 mm H x 99 mm D x 12.7 mm W)
  • DIN Rail Mount: easily attached or removed from 35 mm DIN rail. (DIN rail must be connected to a solid Ground for proper suppression operation)

Environmental Specifications

  • Operating / Storage Temperature: -40oC to +65oC
  • Humidity: 0 to 95% non-condensing

Certifications

  • UL Listed - Isolated Loop Circuit Protector (E499683)
  • UL Listed - Isolated Loop Circuit Protector for use in Hazardous Locations (E502612)
    • Class I, Division 2, Groups A, B, C and D Hazardous Locations, T6 - Tamb = -40oC to 65oC

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