The Ultimate Guide to Timeguard Fused Spur Timeswitches

Looking to automate fixed electrical appliances? This guide explains the key features, benefits, and practical uses of Timeguard fused spur timeswitches so you can choose the right model.

Introduction to fused spur timeswitches
Fused spur timeswitches automate and manage the power supply to fixed outlets and lighting circuits in homes and commercial premises. They provide timed control for appliances such as storage heaters, combination boilers, immersion heaters, towel rails, and washing machines. Modern Timeguard models let you set multiple on/off events per day and, on smart versions, control and adjust schedules from a smartphone. They are ideal upgrades for single-gang connection units, with self-cancelling override for temporary changes and integral memory backup to retain programmes during power cuts.

Overview of Timeguard fused spur timeswitches
• Best for energy efficiency: Timeguard FST24
• Best for advanced programming: Timeguard FST77N
• Best for smart control: Timeguard FSTWiFiTU (Tuya)
• Best for outdoor smart control: Timeguard FSTWIFITUTGV (Tuya, IP66)

Timeguard FST24 – energy-efficient 24-hour control
230 V AC supply, up to 3 kW resistive load, 0–40 °C operating range, approx. 85 × 85 × 38 mm, ~210 g. Four on/off settings per day, clear digital display, 1 or 2-hour boost, automatic summer/winter changeover. Well suited to storage and immersion heaters and convectors. Fits a standard single-gang box.

Timeguard FST77N – advanced weekly programming
Up to 28 on/off events per week, up to 3 kW, 24-hour display, permanent OFF and timed modes, automatic daylight saving adjustment. Ideal where detailed, repeatable weekly schedules are required.

Timeguard FSTWiFiTU – smart, app-controlled fused spur
Wi-Fi control via Tuya Smart/Smart Life app, works with Alexa and Google Assistant, programmable on/off and countdown, 13 A resistive (3 kW), standard spur plate size. Allows full remote control, scheduling, and status checks. Requires a stable 2.4 GHz Wi-Fi connection. For outdoor or semi-exposed locations, choose the IP66-rated FSTWIFITUTGV with the same app features in a weather-resistant enclosure.

How to choose the right model
Match the power rating to the appliance (to avoid overload), decide how much scheduling flexibility you need, and consider convenience features such as boost and memory backup. For easy installation, select models designed to replace a single-gang connection unit and fit standard surface boxes. A clear display and simple programming improve day-to-day use.

Key features on Timeguard timeswitches with double-pole isolation
Automatic summer/winter changeover, 1 or 2-hour boost, double-pole switch for safe isolation, front-accessible BS1362 fuse, integral rechargeable memory backup (retains programmes during outages), and timed outputs for automated control.

Installation basics
Units such as the FST24 fit a standard single-gang box with at least 25 mm depth (approx. 85 × 85 × 38 mm overall). Operating voltage is 230 V AC; typical maximum load is 3 kW resistive (check each model). Always follow manufacturer instructions and use a qualified electrician if in doubt. Many models are available ex-stock for quick delivery.

Troubleshooting and maintenance
If a programme doesn’t run, check schedules and wiring first. If settings are lost after a power cut, the backup battery may need attention. Inspect the BS1362 fuse periodically and keep the unit clean. Persistent issues should be referred to a qualified electrician.

Safety considerations
The double-pole switch provides secure isolation. Use only within the stated temperature range (0–40 °C) and confirm appliance compatibility—these units are not for discharge lighting. Follow all instructions and local wiring regulations.

Summary
Timeguard fused spur timeswitches offer efficient, flexible automation for fixed appliances. Choose from simple 24-hour control, detailed weekly programming, or full smart connectivity—including an IP66 option for outdoor use. The right model will improve convenience, reduce energy waste, and provide reliable operation at home or work.

Frequently asked questions

What can I control?
Storage and immersion heaters, convector heaters, boilers, towel rails, and other fixed appliances up to the stated load rating.

How many programmes can they store?
From four on/off events per day (FST24) up to 28 on/off events per week (FST77N). Smart models offer app-based schedules and countdowns.

What does the boost function do?
It temporarily runs the appliance for 1 or 2 hours without altering your main schedule.

How does automatic summer/winter changeover help?
It keeps the clock accurate year-round, so programmes run at the correct times without manual adjustment.

Can I control a Wi-Fi model when I’m away?
Yes. FSTWiFiTU and FSTWIFITUTGV connect to 2.4 GHz Wi-Fi and are controllable via the Tuya Smart or Timeguard Supplymaster app. You can switch devices, edit schedules, use boost/countdown, and check status remotely. They also support Alexa and Google Assistant.

Is there an outdoor-rated version?
Yes. The FSTWIFITUTGV is IP66-rated for outdoor/semi-exposed installation and includes the same app and voice-control features. Its enclosure has knockouts for secure conduit entry and a padlock facility for added security.

For more information on The Ultimate Guide to Timeguard Fused Spur Timeswitches talk to Expert Electrical Supplies Ltd