Let’s Go Nuclear!


Lemo Connectors for Nuclear Environments

Have you ever wondered what a connector used in Nuclear environments look like and why they may be different to other connectors?   Well wonder no more!

Lemo produce a series of connectors specifically designed to work in Nuclear environments and we think they are beautiful.   Before we go any further this is not about our opinion on Nuclear energy and if it is a good or bad thing, we are only interested in the physics and what engineering is required for the nuclear environment.

So let’s take a look at the N Connector.  Typically manufactured with a Stainless steel shell for gamma radiation environment, PEEK insert for radiation, EPDM seals for radiation.

These connectors have a number of features to benefit customers working in applications were the location or environment requires a robot, often called a telemanipulator, to make the connection. These telemanipulators come in low power and high power units.



As you can see the design is fascinating as it uses 3 prongs for alignment and a unique leaver latching system to ensure that once connected it stays connected.  We think this looks like something out of a James Bond film!

Here are some technical specifications:

• Push-Pull self-latching
• 4 sizes
• Special shell design for manipulator handling
• Temp. range -55°C to 200°C
• Stainless steel shell as a standard
• Solder, crimp or print contacts
• Resistance to 10e6 Gray
• EPDM glands

• IP66
• For cable ø 7.5 to 28.5 mm

Pin Layout Options:

• Multipole 2 to 64 contacts
• Coaxial 50 and 75 Ω
• Triaxial 50 and 75 Ω
• Thermocouple 2 to 6 contacts
• Multi or mixed contacts with:
Coaxial 1 to 14 contacts
High voltage 1 to 21 contacts
Fibre optic 1 to 14 contacts
Fluidic 1 to 14 contacts

The reality is that there is not a massive difference in these and other connectors designed to work in harsh environments but they just look amazing and are a great example of very good design.    

We see a lot of connectors and you can always tell the ones that have had a great deal of thought gone into the design and these are a very good example of this.  Small features such as the latching system and alignment teeth in the panel mounted version are good examples of simple things done very well.

This is also a good example of how Lemo have created a niche for themselves as a manufacturer who designs small form factor connectors designed for high end applications.

Working in the nuclear or harsh environment industries and need help with Cable Assemblies? Contact us now to see have we can help!

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