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Industrial connectors, backshells and contacts

8NA series

Our 8NA series offers nuclear-grade connectors that meet LOCA safety standards. Made from approved materials, they withstand high radiation levels and harsh nuclear environments, complying with RCC-E and IEEE standards. For over 60 years, we've supplied these connectors globally, now used in over 100 nuclear power plants for applications like instrumentation, valve actuation, and primary equipment.

Core features

  • Class 1E LOCA
  • LOCA RCC-E K1 qualified 
  • Hexagonal screw nut for quick coupling 
  • Flexible and robust metal conduit 
  • Qualified for EPR use
  • High shielding performance 
  • Optimized cabling and easy maintenance (8NA junction boxes) 
  • Multiple inputs and outputs (8NA junction boxes) 
  • Factory wired (8NA6G cabled field plugs)
Specifications
Coupling nut tightening torque: 5 daN.m
Endurance: 50 mating / unmating
Temperature range: -40 to +85°C (-40 to 185°F)
Temperature peak: +160°C (320°F)
Radiation: 85 MRads "gamma" at 70°C (158°F)
Seismic tests:
Operating Basis Earthquake (OBE): 2g ZPA
Safe Shutdown Earthquake (SSE): 4g ZPA
Loss of Coolant Accident (LOCA):
Temperature envelope: 156°C (313°F) max.
Pressure envelope: 5,6 bars (81 psig) max.
Post accidental conditions: 100°C (212°F) during 240 hrs
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