FS cutouts are made of high grade phenolic moulding power having high mechanical and dielectric strengh. the body possesser non-hygroscopic and non-tracking qualities. terminal contracts are of tinned brass with phosper bronze back up compression spring capable of providing flawless service even after years of use. It has features like all components are interlocked.sealing provision to aviod unauthorised access. common body from 15amps to 100amps.terminal are suitable for aluminium/copper conductors upto 35sq.mm loop in and loop out cabling contacts available. FS insulated serivce cutouts conform to BS 1361.1986 standard SR H fuses conform to BS1361.1986.