Skip to content

NJW Series

Waterproof connector based on the NJC series.
Boasting a wide variety of options just like NJC.
Has a proven track record in outdoor installations such as surveillance cameras, construction machinery, and outdoor measuring instruments.


RoHS RoHS compliant
Waterproof Waterproof connector [Waterproof function equivalent to IP-67 when connected] (IP-68 class also available upon request)
Locking Method Screw locking method
Mechanism and material features
  • The shell is made of zinc alloy or aluminum alloy die casting.
  • Five-key guide system for smooth connection
  • Using an L-shaped seat allows installation in narrow spaces
About standards
  • ○< PSE > Electrical Appliance and Material Safety Act compliant products available
  • ○UL/CSA certified products available (UL: UL1977 CSA: C22.2 No.182.3)
Wiring Method Solder and crimp types available (both interchangeable)


  • Insulation resistance: When measured between the nearest conductors at the specified voltage, it is 1,000 MΩ or more.
  • Withstand voltage: No short circuit or other abnormalities occur even when the specified voltage is applied between the closest conductors for one minute.
  • Contact resistance: When a pair of contacts is joined to the correct length, the conductor resistance is 5 mΩ or less.
  • Vibration resistance : When a vibration test was performed, there was no functional problem and the contact resistance was 5 mΩ or less.
  • Impact: When an impact test is performed, there is no functional problem and the contact resistance is 5 mΩ or less.
  • Moisture resistance: After a humidity test, there is no functional impairment and the insulation resistance is 10 MΩ or more.
  • Temperature cycle: After the temperature cycle test, there is no functional problem and the insulation resistance is 1,000 MΩ or more.
  • Salt spray: After conducting the salt spray test, there is no functional problem and the contact resistance is 5 mΩ or less.
  • Waterproof: After being left under 40kPa water pressure for 24 hours under normal use conditions, there is no sign of water ingress.

Materials and Processing

  Material Process
Shell Shell sizes 16, 20, 24: Zinc alloy (partly aluminum alloy)
Shell sizes 28, 32: Aluminum alloy
Unique Process
Insulator Synthetic Resin
Contact Copper alloy Silver plating
Gold plating
Rubber Seal Synthetic Rubber
  • It is possible to change to gold-plated contacts.
  • Please contact us if you wish to change the packing or packing material depending on the usage environment. (Example: Silicone rubber, etc.)

Operating temperature limit

Shell Size Number of Contacts Operating temperature limit
16 3,5 -25℃~+85℃
20 2,3,4,5,7,10,12
twenty four 2,3,4,5,10,14,16
28 16,24
32 2,3,4
16 8 -25℃~+60℃
20 14
twenty four 21,24
28 31,37
32 8,10,12