Wylex 160C 60A Insulated switch fuse. C models supplied with cartridge fuse.
This time saving feature offers installers an economical alternative to full consumer unit
replacement. The range also includes SP&N switch fuses up to 100A allowing for submain circuit installation or system extensions/additions to be easily completed.
The Wylex Standard range of consumer units remains one of the most widely used ranges in
domestic circuit protection applications. Originally designed with fuses in mind, standard
consumer units can easily be upgraded to current standards by using the plug in range of MCBs.
http://www.electrika.com/products/m/man-0150/pdfcat/wylex-09-28.pdf