Raychem FS-A-2X Self Regulating Cable

Raychem part number: 277783-000

Image of FS-A-2X cable

Raychem’s FS-A-2X is a self-regulating frost protection cable rated at 10W/m at 5°C. A typical use would be to protect pipework where the operating temperature does not exceed 65°C. For pipework which exceeds this (such as central heating systems) see FS-C10-2X.

It is suitable for any pipe material (copper, threaded pipes, stainless steel pipes, plastic pipes and composite metal pipes) without restriction by using the appropriate fixing tape to attach the cable to the pipework.

Connection of the cable is using the Raychem Rayclic system.

  • Self-regulating - will not overheat where cable may need to cross-over itself
  • Easy to connect using the Rayclic system
  • Suitable for pipes up to 108mm/4” diameter (depending on insulation thickness and temperature)

For larger pipe diameters or where the insulation thickness is limited, you may require FS-B-2X.

Nominal power output 10W/m at 5°C
Maximum exposure temperature 65°C
Maximum circuit length 150m (16A)


1.2mm² copper conductor
Self-regulating heating element
Modified polyolefin insulation
Protective tinned copper braid
Modified polyolefin protective outer jacket