System Spares identifies some of the spares associated with the Evohome and Sundial systems.

42005748-001 Sundial Plan Wiring Centre complete with fuse, spare fuse and cable clamps. 42002116-002 10 way Junction Box complete with cable clamp.
There are a number of accessories available for use with the Smartfit system. Extension Cables SEC 01m -1m cableSEC 02m - 2m cable SEC 05m - 5m cable SEC 10m - 10m cable SEC FF - Connector block SEC FF is required to join any two cables together. SEC 01 to 10 are cables with a plug at each end, which may be used to...
Extension Cables SEC 01m - 1m cable SEC 02m - 2m cable SEC 05m - 5m cable SEC 10m - 10m cable SEC FF - Connector block