Edco SS64/SS65 Series


Edco SS64/SS65 Series

Multi-Stage Hybrid Surge Protective Device for
Over-Voltage Transients

Emerson Network Power > Products > Surge Protection > Signal > Edco SS64 and SS65 Series

The Edco SS64 and Edco SS65 surge protective devices are designed for the water and wastewater industry. These multi-stage hybrid suppressors address over-voltage transients with gas tube and silicon avalanche technology. In addition, sneak and fault currents are mitigated with PTC devices, which consist of solid-state resettable fuses. The units are encapsulated in stainless steel pipe nipples making them suitable for use in severe environments. The Edco SS64 models protect a signal pair and the Edco SS65 models protect a signal pair plus the cable shield (drain wire). UL Recognized 497B.

  • Transient protection for low-voltage signal lines
  • Sneak/fault current protection
  • Resettable fusing PTCs
  • Differential and common mode protection
  • Encapsulated in stainless steel pipe nipples
  • Protection for one pair (Two wires & shield on SS65)
  • Automatic recovery
  • 5 year warranty
  • Suitable for use in severe environments
  • Response Time: < 1 Nanosecond
  • MaximumSignal Voltage: 28 VMax
  • DC Clamping Level (L-G): 36 V ±l0%
  • DC Clamping Level (L-L): 72 V ±l0%

Peak Surge Current:

  • 10 kA (8 x 20µs) 

Maximum let-thru Voltage:

  • Line-to-Ground (10x700µs): 44 V@400 A

Maximum let-thru Voltage:

  • Line-to-Line (10x700µs): 90 V@400 A
  • Series Resistance (per conductor): 5 V (typical)


  • (Zero Volts Bias): 
    • (L-L) 600 pf typical
    • (L-G) 1200 pf typical
  • Number of Occurrences 400@500 Amps (10x1000µs)
Technical Specification

Surge Suppression Products
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