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Surewire SW4L-MF 16A 4-Way Pre-Wired Junction Box White (2742J)

£ 14.82INC VAT

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Surewire SW4L-MF 16A 4-Way Pre-Wired Junction Box White (2742J)

4-way, pre-wired maintenance-free, light and switch junction box. Designed and developed to be a replacement for single junction boxes, the 'loop-in' ceiling rose system and downlighter junction boxes. 4 x independent light and switch connections.

  • Easy to Wire & Maintain
  • Reduces the Number of Terminal Connections
  • All Connections Cut & Stripped to Same Length
  • Modular & Integrates into Existing Systems
  • Lid Screws are Captive
  • Rated to 16A 250V
  • Fitted with Cage Screwless Connectors
  • 2 x Power In/Out Connections
  • 4 x Independent Light Connections
  • 4 x Switch Connections

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Surewire SW4L-MF 16A 4-Way Pre-Wired Junction Box White is rated 3.7 out of 5 by 12.
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Rated 2 out of 5 by from Good idea but... Appreciate the really good idea, but the product is very poorly made. The plastic is really flimsy and connectors an absolute nightmare to use. Bad connection can cause future problems or even fire! Update this product with better plastic case and screw on connectors and would be perfect.
Date published: 2020-11-01
Rated 1 out of 5 by from waste of time and money Got one of these to sort out the lighting circuits in my loft for my bedrooms before we have the loft floored. Wish i had just thrown my money off the Itchen Bridge that my have been more useful. In theory great but the connectors they have used are next to useless. Wish i had just stuck to junction boxes the old fashioned way. The item is flimsy and i dont think it would take much to break it. Like i said great in theory let down by poor construction and no instructions. Wasted 2 hours trying to9 get this bit of trash fitted and ended up going back to junction boxes with loop in and out. Save yourself time and money and look for somerging else
Date published: 2020-07-07
Rated 5 out of 5 by from Easy wiring solutions. I have been renovating an old building and adding an extension. These 'Surewire' boxes make the lighting wiring a doddle. Different boxes have different functionalities so ensure you get the correct one for your needs. This one I have used to connect Three independent lights in a room to a Three switch wall plate. No degree needed as all self explanatory. Great.
Date published: 2019-06-19
Rated 4 out of 5 by from Innovative product These junction boxes are great if you have accessible space to put them. As a DIYer they seem logical and allow you to work in stages. I like the way you can link them and spur off. Bear in mind that cable quantity will usually increase though. Connecting cables is sometimes tricky. I found the best way is to strip back all 3 cores, then depress the grey push-downs simultaneously using a flat blunt tool like the end of your strippers, then insert all 3 cores at once, and you know when they have been gripped.
Date published: 2018-08-13
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Hi - will these junction boxes accept 2.5mm twin & earth?

Asked by: Mike257
Yes the terminals will accept 2.5mm core cable and the cut outs can be widened to accept the extra width of the cable and our internal copper substrates are 2.5mmsq. However they are specifically designed for wiring lighting systems and as such must have a maximum of a 16amp fuse protecting for the circuit and not be used for ring mains etc.
Answered by: Surewire
Date published: 2020-10-24

Can a in-line extractor fan be incorporated

Asked by: Craig95
Hi, As an extractor fan has to have a live, switch live, neutral and earth it has to be wired up externally to the box. Thanks
Answered by: Surewire
Date published: 2018-08-04

Fitting a PIR

How do I fit a PIR sensor to a light circuit and switch that is connected using the surewire box? Is this possible
Asked by: ASMoon
Hi, The PIR Senor is effectively a switch and therefore can be connected to the switch connection on our box. This would be where the PIR only operates the light. If a switch is to be fitted as well to have a permanent light on at times when required then wire to our box as normal for the switch, but a link between the switch cable live and switch live (neutral) cables must be made with the PIR before the connections into our box. This will enable the switch to be used when required and when switched off the PIR will then take over and operate the light. Thank you.
Answered by: Surewire
Date published: 2017-11-12

Can these boxes be used for 2-way lighting ???

Asked by: GRC83
Yes they can. Run the twin & earth from the switch connection to the first 2 way switch and then 3 core and earth to the 2nd 2 way switch and it works perfectly. Thanks
Answered by: Surewire
Date published: 2019-01-24
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Specification
Amp Rating 16 A
Brand Surewire
Colour White
Construction Material (Electrical) Polycarbonate
Current Rating 16 A
Fixings Supplied Fixings Not Supplied
IP Rating IP41
Manufacturer Guarantee 1 Year Guarantee
Model No SW4L-MF
No. of Terminals 30
Pack Size 1
Parent Colour White
Pieces in Pack/Case 1
Power Voltage Supply 250 V
Product Depth 135 mm
Product Height 22 mm
Product Length 195 mm
Product Type 4-Way Pre-Wired Junction Box
Product Width 25 mm
Suitable Cable Size 1-1.5 mm²
Terminal Capacity Terminals accept up to 2.5mm² cable