Timers and controllers come down to what you’re switching and how much control the job needs. A basic time switch handles simple repeat on-off patterns. Digital timers and programmable timer switches suit schedules that change through the week, while 24 hour timer switches keep the same routine each day. 7 day timer switches make more sense where weekdays and weekends differ. The main thing is not to over-spec it - more adjustment usually means more time spent setting it up.
Siemens Single Channel Timeswitch
Single channel timeswitch for combi boilers, 230V, with boost and advance.
Brennenstuhl MZ20 24 Hr Timer - Black
24-hour timer with up to 96 daily on/off settings, 15-minute minimum switching
Greenbrook Mechanical Timer - 24 hour 96 switch selector
24-hour mechanical timer with 96 on/off settings and manual override
Niglon Mechanical 7 Day Plug-In Timer
Mechanical 7-day plug-in timer for weekly control
Greenbrook Mechanical Socket Box Timer - 16A 24 hours white
Mechanical socket box timer, 16A, 24-hour cycle, with on status indicator
Greenbrook Mechanical Economy 7 Timer with Boost - 16A White
16A mechanical Economy 7 timer with boost and on indicator
SLx Mechanical Plug-in Timer - 24 Hour
24-hour mechanical plug-in timer with 48 ON/OFF settings and manual override
Axiom 7 Day Electronic Lighting Timer - 16A (8A)
7-day timer with 20 on/off settings, 1min switch, 35mm back box
Selectric Immdig 24 Hour Display Digital Immersion Heater Timer Switch - 16A
Digital immersion heater timer with 42 weekly on/off programmes, IP20, surface-m…
SLx Compact 7 Day Electronic Timer - 16A
7-day digital timer with 8 daily ON/OFF settings and battery backup
Start with the space you’ve got and how the job will be used, then the rest usually falls into place. If the layout is tight or the schedule is simple, a straightforward time switch is often enough. Once you need different settings through the week, programmable timer switches or 7 day timer switches make more sense, but you do give up some simplicity. Digital timers earn their place where changing settings matter more than a fixed daily pattern. Most call-backs come from units picked for the finish first and the use second.
If the job only needs one fixed routine, a simple time switch is usually the cleanest call. You get fewer settings to get wrong, and less to explain on handover.
Where the schedule changes through the week, 7 day timer switches make more sense. They let you split weekday and weekend timings without bodging it.
24 hour timer switches suit repeat daily cycles. Programmable timer switches give you more control, but they bring more setup and more room for error.
Digital timers are the better pick when you want clearer adjustment and less faffing than older analogue units. If you’re matching the rest of the job out of Wiring Accessories, check the format first. That usually decides it.
The first question is how much control the job needs. That separates a simple time switch from the more adjustable options. For a fixed routine, keep it plain and don’t pay for settings you won’t use. Once the schedule changes through the week, programmable timer switches or 7 day timer switches make more sense. They do take longer to set, and they’re easier to get wrong if the brief keeps moving.
Digital timers suit jobs where you want clearer adjustment and less faffing on site. Check the back box depth early as well. A cramped box turns a neat install awkward fast. If you’re finishing a mixed plate, Back Boxes and Pattress Boxes and Combination Plates are the bits that usually decide what fits cleanly.
Once you’ve picked the timers and controllers, the next call is usually what the rest of the platework needs around it. If it’s going into a standard wall box, back boxes and pattress boxes save you fighting depth and fixing later on.
Where the timer sits with other controls, combination plates keep the layout tidier and avoid stacking separate plates. In a visible area, decorative switches and sockets are the cleaner finish. Metal clad is the tougher call where the surroundings are rougher.














