Power Assemblies and Controllers

Circuit Protection

Cable Limiter Fuses

A cable limiter provides very fast, short-circuit protection, primarily to faulted cables but also to other conductors such as busway. Cable limiters do not have an ampere rating and cannot be used to provide overload protection. 

They are selected by cable size, the cable and cable limiter should be the same size to ensure they isolate faulted cables in circuits containing three or more parallel conductors per phase. They can be installed on the line side of the main service to provide short-circuit protection to the service conductors. This is extremely important when service conductors are tapped from large low voltage networks or from large low impedance transformers.

The cable limiter fuses current-limiting characteristics provide protection to conductor insulation and reduce damage when a fault occurs. Littelfuse’s wide variety of terminations and cable ratings permit use in almost every situation.

Littelfuse Cable Limiter Fuses by GD Rectifiers

Voltage ratings: 250Vac, 600Vac

Interrupting rating: 100kA (250Vac), 200kA (600vac)

Cable size range: 12AWG – 1000Kcmil Copper



For further information on Cable Limiter Fuses please call: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).


Littelfuse is a global manufacturer of leading technologies in circuit protection, power control, and sensing. Littelfuse products are found in automotive and commercial vehicles, industrial applications, data and telecommunications, medical devices, consumer electronics, and appliances. They partner with customers to design, manufacture, and deliver innovative, high-quality solutions, for a safer, greener, and increasingly connected world—everywhere, every day.

Further information:

You can find further information on Littelfuse using the following links:

Tel: 01444 243 452

Fax: 01444 870 722

Email: enquiries@gdrectifiers.co.uk