Amphenol Industrial RIG-Lok Connectors

Amphenol Industrial RIG-Lok Connectors feature patented RADSOK® technology and deliver high power from the source to the load. These reverse bayonet connectors offer a higher amperage rating and lower temperature rise and insertion/removal forces compared to existing rugged connectors. They have up to a 1135A current rating, 2500VAC voltage rating, and work with wire gauges from 4/0AWG through 777MCM. The RIG-Lok series features a touch-proof, dead-front contact design when unmated. The plug contains an 18mm RADSOK socket and the receptacle contains an 18mm pin with the option of crimp, 2 hole busbar, or threaded busbar termination. The 18mm RIG-Lok Connectors are ideal for high amperage applications such as electrical generators, fuel cells, load banks, and charging systems. Other applications include rugged/harsh environments, land-drilling equipment, oilfields, and much more.


  • Ruggedized overmolded coupling nut
  • Wire gauges 4/0AWG through 777MCM
  • Utilizes patented RADSOK Technology
  • 1/4-turn reverse bayonet
  • Crimp or busbar termination
  • Silver-plated contacts
  • Fingerproof connections
  • RoHS compliant


  • Oilfields
  • Power distribution panel suppliers
  • Traction motor OEMs
  • VFD drive buildings
  • Land-drilling equipment
  • Traction motors
  • Top drive power distribution
  • Rugged/harsh environments


  • 800A (110°C cable) and 1135A (125°C cable) current
  • 2500VAC voltage rating
  • 2000 mating cycles
  • -40°C to +125°C component operating temperature range
  • 300-day salt spray rating
Published: 2013-07-30 | Updated: 2022-03-11