Skip To The Main Content
Nuclear Qualified | Namco Controls

Nuclear Qualified

Nuclear Qualified QDC Connectors
Nuclear Qualified
Quick Disconnect Connectors

NAMCO nuclear connectors, designed for fast easy disconnect connect operation, dramatically reduce the exposure of personnel to radiation. They maintain the sealed integrity of limit switches by eliminating the need to disassemble and rewire the devices during required maintenance.

IEEE Qualifications

323-2003/1983/1974, 344-2004/1987/1975, 382-2006/1996/1980, 383-2003/1974/1972, 572-1985/2004

All units have a minimum life of 10 years under intense radiation and combine the following product features:

  • Fully submersible, except for EC290 Series
  • Connector keyed for quick positive one way connection
  • Bayonet style connection, positive visual locking indicator
  • Radiation resistant elastometer materials
  • Flexible wire to eliminate kinking and fatigue failure
  • Manufactured to a quality assurance program designed to meet the requirements of 10CFR50 Appendix B, and ANSI N25.2, as applicable
  • Cable lengths available from 20 feet
  • Seismic and vibration resistant

Interested in the nuclear qualified quick disconnect connectors? Contact us today!


EC290-44xxx - Designed for use with EA170, EA180 & EA740 Series

600V/90°C rated 4 conductor 16 AWG stranded nuclear grade cable has excellent resistance to radiation, heat, mechanical abuse, flame, weathering, most oils, acids and alkalies. Cable meet requirements of IEEE Std. 383 type test of Class IE electronic cables. Leakproof to DBE environments including LOCA and HELB conditions — e.g., steam, vapors, pressures up to 80 PSIG and chemical sprays.


Plug In Cable

Cable lengths should be ordered with specific cable lengths between 20 and 100 feet lengths as follows:

 Plug In Cables
 Part Number Length
 EC290-44020  20 feet (6.1m)
 EC290-44025  25 feet (7.6m)
 EC290-44030  30 feet (9.1m)
 EC290-44035  35 feet (10.7m)
 EC290-44050  50 feet (15.2m)
 EC290-44100  100 feet (30.5m)

EC290-29xxx - Designed for use with EA170, EA180 & EA740 Series

600V/90°C rated 9 conductor 16 AWG stranded nuclear grade cable has excellent resistance to radiation, heat, mechanical abuse, flame, weathering, most oils, acids and alkalies. Cable meet requirements of IEEE Std. 383 type test of Class IE electronic cables. Leakproof to DBE environments including LOCA and HELB conditions — e.g., steam, vapors, pressures up to 80 PSIG and chemical sprays.
Plug In Cable

Cable lengths should be ordered with specific cable lengths between 20 and 100 feet lengths as follows:

 Plug In Cables
 Part Number Length
 EC290-29020  20 feet (6.1m)
 EC290-29025  25 feet (7.6m)
 EC290-29030  30 feet (9.1m)
 EC290-29035  35 feet (10.7m)
 EC290-29050  50 feet (15.2m)
 EC290-29100  100 feet (30.5m)

EC390-44xxx - Designed for use with EA120 SPDT for Harsh Environments With Accident Conditions (LOCA/HELB)

600V/90°C rated 4 conductor 16 AWG stranded nuclear grade cable has excellent resistance to radiation, heat, mechanical abuse, flame, weathering, most oils, acids and alkalies. Cable meet requirements of IEEE Std. 383 type test of Class IE electronic cables.
Plug In Cable

Cable lengths should be ordered with specific cable lengths between 20 and 100 feet lengths as follows:

 Plug In Cables
 Part Number Length
 EC390-44020  20 feet (6.1m)
 EC390-44025  25 feet (7.6m)
 EC390-44030  30 feet (9.1m)
 EC390-44035  35 feet (10.7m)
 EC390-44050  50 feet (15.2m)
 EC390-44100  100 feet (30.5m)

EC390-29xxx - Designed for use with EA120 DPDT for Harsh Environments With Accident Conditions (LOCA/HELB)

600V/90°C rated 6 conductor 16 AWG stranded nuclear grade cable has excellent resistance to radiation, heat, mechanical abuse, flame, weathering, most oils, acids and alkalies. Cable meet requirements of IEEE Std. 383 type test of Class IE electronic cables.
Plug In Cable

Cable lengths should be ordered with specific cable lengths between 20 and 100 feet lengths as follows:

 Plug In Cables
 Part Number Length
 EC390-29020  20 feet (6.1m)
 EC390-29025  25 feet (7.6m)
 EC390-29030  30 feet (9.1m)
 EC390-29035  35 feet (10.7m)
 EC390-29050  50 feet (15.2m)
 EC390-29100  100 feet (30.5m)

EC490-44xxx - Designed for use with EA120 SPDT Series for Mild Environment

600V/90°C rated 4 conductor 16 AWG stranded nuclear grade cable has excellent resistance to radiation, heat, mechanical abuse, flame, weathering, most oils, acids and alkalies. Cable meet requirements of IEEE Std. 383 type test of Class IE electronic cables.
Plug In Cable

Cable lengths should be ordered with specific cable lengths between 20 and 100 feet lengths as follows:

 Plug In Cables
 Part Number Length
 EC390-44020  20 feet (6.1m)
 EC390-44025  25 feet (7.6m)
 EC390-44030  30 feet (9.1m)
 EC390-44035  35 feet (10.7m)
 EC390-44050  50 feet (15.2m)
 EC390-44100  100 feet (30.5m)

EC490-29xxx - Designed for use with EA120 DPDT Series for Mild Environment

600V/90°C rated 16 conductor 16 AWG stranded nuclear grade cable has excellent resistance to radiation, heat, mechanical abuse, flame, weathering, most oils, acids and alkalies. Cable meet requirements of IEEE Std. 383 type test of Class IE electronic cables.
Plug In Cable

Cable lengths should be ordered with specific cable lengths between 20 and 100 feet lengths as follows:

 Plug In Cables
 Part Number Length
 EC390-29020  20 feet (6.1m)
 EC390-29025  25 feet (7.6m)
 EC390-29030  30 feet (9.1m)
 EC390-29035  35 feet (10.7m)
 EC390-29050  50 feet (15.2m)
 EC390-29100  100 feet (30.5m)

EC590-44xxx - Designed for use with EA120 SPDT Series for Harsh Environment without Accident Conditions

600V/90°C rated 4 conductor 16 AWG stranded nuclear grade cable has excellent resistance to radiation, heat, mechanical abuse, flame, weathering, most oils, acids and alkalies. Cable meet requirements of IEEE Std. 383 type test of Class IE electronic cables.
Plug In Cable

Cable lengths should be ordered with specific cable lengths between 20 and 100 feet lengths as follows:

 Plug In Cables
 Part Number Length
 EC590-44020  20 feet (6.1m)
 EC590-44025  25 feet (7.6m)
 EC590-44030  30 feet (9.1m)
 EC590-44035  35 feet (10.7m)
 EC590-44050  50 feet (15.2m)
 EC590-44100  100 feet (30.5m)

EC590-29xxx - Designed for use with EA120 DPDT Series for Harsh Environment without Accident Conditions

600V/90°C rated 6 conductor 16 AWG stranded nuclear grade cable has excellent resistance to radiation, heat, mechanical abuse, flame, weathering, most oils, acids and alkalies. Cable meet requirements of IEEE Std. 383 type test of Class IE electronic cables.
Plug In Cable

Cable lengths should be ordered with specific cable lengths between 20 and 100 feet lengths as follows:

 Plug In Cables
 Part Number Length
 EC590-29020  20 feet (6.1m)
 EC590-29025  25 feet (7.6m)
 EC590-29030  30 feet (9.1m)
 EC590-29035  35 feet (10.7m)
 EC590-29050  50 feet (15.2m)
 EC590-29100  100 feet (30.5m)