Timeguard FST77SL Slim Line 7 Day Timeswitch

The Timeguard FST77SL Slim Line 7 Day Fused Spur Timeswitch is designed for reliable weekly control of fixed electrical appliances. It is a practical choice for immersion heaters, towel rails, panel heaters and other timed electrical loads where flexible 7 day programming is required.

This slimline digital timer offers up to 8 ON/OFF programmes, with 5-day plus 2-day or full 7-day programming options. This gives users up to 56 ON/OFF programmes per week, making it suitable for different weekday and weekend routines. The easy-view 24-hour digital clock and timer display helps make setup and daily use straightforward.

For extra convenience, the FST77SL includes a boost option, permanent ON/OFF control and clear LED status indicators. The red LED shows mains power, while the green LED shows output status. Automatic summer/winter time changeover helps keep schedules accurate throughout the year, and the integral memory backup battery helps retain programmed settings during power interruptions.

The Timeguard FST77SL is designed to fit a standard 1-gang back box and is ideal for replacing a single gang connection unit or fixed appliance outlet. Its slimline white finish gives a neat appearance, while the IP20 rating makes it suitable for indoor installations. Backed by a 3-year manufacturer guarantee, it is a dependable timer switch for domestic and light commercial use.

Key SEO Features

• Slimline 7 day fused spur timeswitch
• Weekly digital timer for fixed appliances
• Ideal for immersion heaters, towel rails and panel heaters
• Up to 8 ON/OFF programmes
• Up to 56 ON/OFF programmes per week
• 5-day plus 2-day or 7-day programming options
• Easy-view 24-hour digital clock and timer display
• Boost option for temporary timed operation
• Permanent ON/OFF function
• Red mains ON LED indicator
• Green output LED indicator
• Automatic summer/winter time changeover
• Integral memory backup battery
• Fits a standard 1-gang back box
• Single pole switch
• IP20 rated for indoor use
• 3-year manufacturer guarantee

Customer Benefits

• Helps reduce energy waste by running appliances only when needed
• Weekly programming suits weekday and weekend routines
• Boost function gives quick temporary operation without changing schedules
• Battery backup helps prevent lost programmes after power cuts
• LED indicators make power and output status easy to check
• Slimline design creates a neat, modern finish
• Ideal retrofit option for fixed appliance outlets
• Suitable for electricians, landlords and property maintenance teams

Product Specification

• Brand: Timeguard
• Product Code: FST77SL
• Product Type: Slimline 7 day fused spur timeswitch
• Timer Type: Digital 7 day timer
• Programmes: Up to 8 ON/OFF programmes
• Weekly Programmes: Up to 56 ON/OFF programmes per week
• Programming Options: 5-day plus 2-day or 7-day
• Display: 24-hour digital clock/timer display
• LED Indicators: Red mains ON and green output
• Control Options: Boost, permanent ON/OFF and timed output
• Time Changeover: Automatic summer/winter time changeover
• Memory Backup: Integral backup battery
• Switch Type: Single pole
• Installation: Standard 1-gang back box
• IP Rating: IP20
• Colour: White
• Height: 85mm
• Width: 85mm
• Depth: 35mm
• Guarantee: 3 years
• Suitable For: Immersion heaters, towel rails, panel heaters and fixed appliance control

What is the Timeguard FST77SL used for?

The Timeguard FST77SL is used to automatically control fixed electrical appliances on a weekly timer schedule. It is commonly used for immersion heaters, towel rails, panel heaters and fixed appliance outlets.

Is the FST77SL a 7 day timer?

Yes. The FST77SL is a 7 day digital timeswitch with 5-day plus 2-day or full 7-day programming options.

How many programmes does the FST77SL have?

It offers up to 8 ON/OFF programmes, giving up to 56 ON/OFF programmes per week.

Can it be used with an immersion heater?

Yes. Trade listings state that the FST77SL is suitable for use with immersion heaters up to 3kW.

Does the FST77SL have a boost function?

Yes. It includes a boost option for temporary timed operation without changing the main programme.

Does it have permanent ON/OFF control?

Yes. The FST77SL includes a permanent ON/OFF function as well as timed output control.

Does it remember settings after a power cut?

Yes. It has an integral memory backup battery to help retain programmes during power failure.

Does it adjust for daylight saving time?

Yes. The FST77SL includes automatic summer/winter time changeover.

What do the LED lights show?

The red LED shows mains ON status and the green LED shows output status.

What back box does it fit?

The FST77SL is designed to fit a standard 1-gang back box.

Is the FST77SL suitable for outdoor use?

No. It is IP20 rated and intended for indoor use only.

Who should install this timeswitch?

The FST77SL should be installed by a qualified electrician or competent electrical professional in accordance with current wiring regulations.