Timeguard's FST77SL is a fused spur timeswitch that can be retrofitted in areas where existing single gang connection units are in situ, delivering the tried and trusted features you expect from the SupplyMaster range.

The FST77SL gives the user the ability to control when their appliance should be regulated and how often. Features include: Boost periods for up to 120 minutes (2 hours), permanent ON/OFF override, a self-cancelling override until the next programme change, mains and output colour-coded indicators, 8 ON/OFF programmable slots per day and a 28-day battery backup to maintain programming in the event of a power cut or extended maintenance.