Greenbrook 7-Day Digital Timer (4157R)

Ideal for most heating applications. Will fit directly to any 25mm deep socket box fitted with an earth terminal. Summer time setting option, countdown timer function and 'Random' setting.

  • 7-Day Electronic Timer with 150hr Battery Backup
  • 24 On / Off Programmes
  • Digital Display
  • Manual Override

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View all: Greenbrook Timers & Controllers

£17.99INC VAT

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Greenbrook 7-Day Digital Timer is rated 4.3 out of 5 by 10.
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Rated 4 out of 5 by from Good little timer Using to control a couple of outside lights rather than mess around with photocells and/or PIRs which always seem to fail within a few years. Easy enough to fit onto standard pattress and once you get the hang of the menu fairly easy to program. Would be great if there was also a battery operated version that could be used where there is no neutral (ie virtually every light switch in the UK domestic housing stock!)
Date published: 2018-03-27
Rated 5 out of 5 by from Does the job, minor issues Great little piece for what I wanted - switching on a pair of outside lights at relevant times. Nice and simple to wire. Programming pretty simple once you look on the greenbrook website and follow their 'simplified' instructions - the ones in the package aren't very easy to follow. Only negatives I've found are that the backplate is a bit flimsy, and the buttons aren't very responsive. Seem to have to press them three or four times sometimes to get them to respond. Not worth worrying about though at this price bracket, and it's all set up now so I shouldn't need to adjust it again
Date published: 2018-02-19
Rated 3 out of 5 by from Works Well but Cheaply Made Since installation it's been working well, however note it tells you not to install it against a flammable surface. I had no choice but to mount the pattress box on a wood batten. However, as I'm only switching a 10W LED bulb, hopefully there shouldn't be any issue with heat. As for the product, 2 failings: 1. Buttons don't always work easily and need to be pushed at an angle 2. Very cheap thin plastic has been used on both the back plate and cover - the device is in 3 parts - backplate, round timer, then a cover which holds the timer in place. The back plate plastic is so thin, it bends in your fingers and I was constantly expecting it to break as it flexed when tightening up the terminal screws and again under pressure from the cabling when screwing it to the pattress box (yes it was 35mm deep!). Why Greenbrook can't make it of thick plastic similar to a pattress box ie maybe 3mm thick instead of about 1 mm, is beyond me. I'm sure most people would pay another 50p for a thicker, sturdier more durable back plate. Same can be said about the front cover, very thin and has to be screwed down tight to hold the timer firmly in place (otherwise it moves when you press the buttons). Again, was afraid of breaking this and the screws provided, didn't seem to fit either my electricians screwdrivers or very expensive Teng screwdrivers very well either. Seem to have slightly different head profiles again leaving me in fear of stripping the heads given how tight they have to be to hold the timer in place. Overall, it works well. However the quality of the backplate, cover and screws leave a lot to be desired, and the buttons could do to be more positive and reliable.
Date published: 2018-01-11
Rated 4 out of 5 by from Good and easy to fit timer I had to replace a mechanical timer and this was not much more than a direct replacement. Same size, so easy job to swap. Only issue is the programming. Could be easier. However, now up and running and no problems.
Date published: 2018-01-05
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Cfl 125w

Will this timer be ok for x2 cfl 125w dual spectrum bulbs
Asked by: Gingerbreadbeard
This timer can switch 2 x 125W CFL Lamp (total 250W). The timer rating is 16A for resistive loads and 2A for inductive loads.
Answered by: Technical Department
Date published: 2018-03-31

cable entry

where is the cable entry, I want to use this as a timer for a bathroom rad
Asked by: capri102
Connection terminals are accessible at the rear of the unit.
Answered by: Technical Department
Date published: 2018-02-18

Will this timer fit into a 25mm deep metal back box?

Asked by: leccy1
This timer will fit into a 25mm back box. Although, we recommend using a 35mm deep back box for ease of cable termination.
Answered by: Technical Department
Date published: 2018-05-01

Low watt use 5w lamp

Is this suitable for low watt load I got a 5w led fitting some switches say unsuitable for led lights? They cause them to flicker even when switched off Thanks
Asked by: Devvo
The 4157R timer is suitable for use with LED Lighting. This timer is rated at 16A for resistive loads and 2A for inductive loads. We place LED lighting under the inductive rating, therefore we recommend a max of 400W with no minimum load for LED.
Answered by: Technical Department
Date published: 2018-05-11

Can this timer be used to control a contactor which is used for the load

Asked by: Nibz
The 4157R Timer can be used to control a contactor.
Answered by: Technical Department
Date published: 2018-01-21
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Specification
Brand Greenbrook
Colour White
Manufacturer Guarantee 1 Year Guarantee
Model No T105A-SCR
Pack Size 1
Pieces in Pack/Case 1
Power Voltage Supply 230 V
Product Depth 43 mm
Product Height 77 mm
Product Length 72 mm
Product Type 7-Day Digital Timer
Product Width 72 mm
Total Product Weight 0.19 kg

230V. 16A resistive, 2A inductive. H x W x D: 77 x 72 x 43mm.