Cable Lugs

A cable lug (sometimes known as a 'crimp lug') has high levels of electrical conductivity and is attached to a wire or cable with the use of a crimping tool, so that the wire or cable can connect to an electrical appliance.

Frequently Asked Questions about Cable Lugs

Do Klauke L Series lugs come with a guarantee/warranty?

No warranty/guarantee is available for Klauke L-Series lugs due to different factors, such as the environment they are in, the cable type, etc. because any of these factors can influence the lifetime of a lug. However, you can refer to the IEC 61238-1 test which shows that the L Series Lug is a non-ageing connection.

Why do you have the inspection hole on the lugs? Doesn’t that let water in?

The inspection hole is there so the operator can ensure the cable is fully inserted prior to crimping. Cable lugs are generally designed for use in dry environments. If they are installed outside then suitable precautions should be taken, such as housing them in an enclosure or installing them with a heat shrink termination kit to prevent any water ingress to the cable.

Can I get use a copper cable lug on an aluminium cable?

No. Aluminium and copper connections will react chemically, then corrode and cause a high resistance joint. If you are using aluminium cables and need to terminate on a copper bus-bar, please use a bi-metal cable lug, where the interface between copper and aluminium is controlled in a special process called friction welding.

How many crimps do I need to put on a cable lug?

The number of crimps required varies according to the cable size and the crimping tool you have (there is a guide about this on the Klauke web site). As a general rule of thumb, if you can fit another crimp on, then do it. The worst case is where you haven’t made enough crimps, so the contact area is not sufficient enough to make a good connection. Crimps should be side by side but not overlapped and start crimping at the palm end, working back towards the cable entry. On DIN standard cable lugs there are marks on the barrel, which indicate how many crimps and where to place them.

Which Cable Lug Do I Need?

Cable lugs are essential components in electrical and mechanical connections. They provide a secure and reliable way to attach cables to terminals, bus bars and other equipment.

A Guide to Standard Wire Gauges

Understanding wire gauges is essential for anyone involved in electrical wiring, from professionals to DIY enthusiasts. Wire gauge refers to the thickness or diameter of a wire, which directly affects its electrical resistance and current-carrying capacity. Choosing the right gauge is needed for both performance and safety.

A Guide to Metric Bolt Sizes

Choosing the correct metric bolt size is essential in construction, engineering and DIY projects. Metric bolts, measured in millimetres, are widely used across industries for their precision and standardisation.

How to Choose the Correct Crimping Tool

With the various number of crimping tools available, it can be confusing to know which is the right one for what you need. Take a look at our guide on how to choose the right crimping tool for you.