NU25 connectors

This stainless steel bayonet lock connectors have been designed for K2 classed and non-classed nuclear applications.

A 360° shield complying with the requirements of RCC-E 2005 gives rise to a reduction effect of approximately 50 dB at 1 MHz.

Based on the NF L 54-120 standard, this new version of connector benefits from feedback of over 30 years both from sensor manufacturers and power station users.

This new design was aimed at facilitating the assembling of receptacles on sensors, simplifying the wiring of plugs and improving sealing.

The sealing of the plugs has been reinforced by an adhesive heatshrink sleeve which guarantees efficiency over time not guaranteed by a simple gland.

Documentations on request :

Example of application: NUCLEAR INSTRUMENTATION

List of references: see table below

- Data sheets :
- Mounting indications :

DT1038
DT1057 for receptacles
DT1056 for plugs with cable gland outlet
DT1055 for plugs with shielding continuity

NU25 Size 1, 3 contacts
NU25 Size 2, 7 contacts
NU25 Tooling
NU25 Spare parts

		Square flange receptacle 251-103-400 K2 (K2 classified) 251-103-400 NC (not classified)			plug with shielding continuity 254-103-400 K2 (K2 classified) 254-103-400 NC (not classified)
		M20 x 1,5 receptacle 251-103-401 K2 (K2 classified) 251-103-401 NC (not classified)			Plug with cable gland 254-103-401 K2 (K2 classified) 254-103-401 NC (not classified)
		½ NPT receptacle 251-103-402 K2 (K2 classified) 251-103-402 NC (not classified)			Raychem WCSF heat shrinkable tubing 25-44-00 (K2 classified)
					Raychem MWTM heat shrinkable tubing 25-44-02 NC (not classified)

		Square flange receptacle 251-207-400 K2 (K2 classified) 251-207-400 NC (not classified)			Plug with shielding continuity 254-207-400 K2 (K2 classified) 254-207-400 NC (not classified)Required version for EPR apllications
		M20 x 1,5 adaptor for square flange receptacle size 2 251-103-401 K2 (K2 classified) 251-103-401 NC (not classified)			Plug with cable gland 254-1207-401 K2 (K2 classified) 254-207-401 NC (not classified) Not allowed for EPR apllications
					Raychem WCSF heat shrinkable tubing 25-44-01 (K2 classified)
					Raychem MWTM heat shrinkable tubing 25-44-02 (not classified)

		Male/female contact insertion tool 085-025-01			Crimping clamp (M22520/1-01) 084-000-01
		Female contact extraction tool 086-025-01			Turret (M22520/1-02) 084-025-02
		Male contact extraction tool 086-025-02			Crimping gage (M22520/3-1) 084-000-02
		Tightening support for plug size 1 087-025-01			Tightening support for plug size 2 087-025-02

		Female crimp contact Ø 1.5 25-11-01			Washer braid collector 25-39-02
		Male crimp contact Ø 1.5 25-60-02			Kit with 3 cable gland seals cable Ø 8 to 9 / 9 to 10.5 / 10.5 to 12 889-000-01