Timeguard FST24SL Slim Line 24 Hour Timeswitch

The Deta Timeguard FST24SL Slim Line 24 Hour Timeswitch provides reliable daily control for fixed electrical appliances and timed power applications. Designed to fit a standard 1-gang back box, this slim profile timer switch is ideal for replacing a traditional connection unit or fixed appliance outlet where 24 hour programmable control is required.

With up to 4 ON/OFF programmes available, the FST24SL allows connected appliances to run automatically according to a daily schedule. The easy-view 24 hour digital clock and timer display makes programming straightforward, while red “Mains ON” and green “Output” LED indicators provide clear status visibility at a glance.

For extra convenience, the timer includes a 1 or 2 hour boost option, permanent ON/OFF function and automatic summer/winter time changeover. An integral memory backup battery helps retain programme settings in the event of a power failure, reducing the need for reprogramming.

Compact, practical and installer-friendly, the Timeguard FST24SL is suitable for indoor domestic and light commercial applications such as immersion heaters, towel rails, panel heaters and other fixed appliances. With a clean white matt finish, IP20 rating and 3-year manufacturer guarantee, it is a dependable choice for electricians, landlords and property maintenance teams.

Key Features

• Slim line 24 hour digital timeswitch
• Up to 4 ON/OFF programmes available
• Easy-view 24 hour digital clock and timer display
• Red LED “Mains ON” indicator
• Green LED “Output” indicator
• 1 or 2 hour boost option
• Permanent ON/OFF function
• Automatic summer/winter time changeover
• Integral memory backup battery retains programmes during power failure
• Single pole switch
• Fits onto a standard 1-gang back box
• IP20 rated for indoor use
• White matt finish
• 3-year manufacturer guarantee

Customer Benefits

• Automates fixed appliances on a daily schedule
• Helps reduce wasted energy by switching loads on and off automatically
• Boost function gives temporary extra run time when needed
• LED indicators make power and output status easy to check
• Memory backup helps prevent lost settings after power cuts
• Slim profile gives a neat, discreet installation
• Suitable replacement for single gang connection units
• Ideal for electricians, landlords and maintenance teams
• Helps improve control of heating, hot water and fixed appliance loads

Product Specification

• Brand: Deta / Timeguard
• Product Code: FST24SL
• Product Type: Slim line 24 hour timeswitch
• Timer Type: Digital 24 hour timer
• Programmes: Up to 4 ON/OFF programmes
• Voltage Rating: 230V AC
• Frequency: 50Hz
• Switching Type: Single pole
• Boost Function: 1 or 2 hour boost option
• Manual Control: Permanent ON/OFF function
• Display: 24 hour digital clock/timer display
• Indicators: Red mains ON LED and green output LED
• Memory Backup: Integral backup battery
• Installation: Fits standard 1-gang back box
• Minimum Back Box Depth: 35mm
• IP Rating: IP20
• Colour: White
• Surface Finish: Matt
• Height: 85mm
• Width: 85mm
• Depth: 35mm
• Guarantee: 3 years
• Application: Fixed appliances, immersion heaters, towel rails, panel heaters and timed electrical loads

What is the Timeguard FST24SL used for?

The Timeguard FST24SL is used to automatically switch fixed electrical appliances on and off using a 24 hour daily timer programme.

Is the FST24SL a 24 hour timer?

Yes. The FST24SL is a 24 hour digital timeswitch designed for daily scheduling.

How many programmes does the FST24SL have?

It provides up to 4 ON/OFF programmes.

Does it have a boost function?

Yes. The FST24SL includes a 1 or 2 hour boost option, allowing temporary extra operation without changing the main programme.

Does the timer have manual override?

Yes. It includes a permanent ON/OFF function for manual control when required.

Does it automatically adjust for summer and winter time?

Yes. The FST24SL includes automatic summer/winter time changeover.

Will it remember settings after a power cut?

Yes. It has an integral memory backup battery to help retain programmes if mains power is interrupted.

What do the LED indicators show?

The red LED shows “Mains ON” and the green LED shows “Output” status.

What back box does it fit?

The FST24SL fits onto a standard 1-gang back box and requires a minimum back box depth of 35mm.

Is the FST24SL suitable for outdoor use?

No. The FST24SL is IP20 rated and intended for indoor use only.

What appliances can it be used with?

It is commonly used for fixed electrical loads such as immersion heaters, towel rails, panel heaters and other timed appliances.

Who should install this timeswitch?

The FST24SL should be installed by a qualified electrician or competent electrical professional in accordance with current wiring regulations.