Discuss How to extend the wiring loop in the Electrical Forum area at ElectriciansForums.net

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Just to expand on DPG's comment: Here MF = maintenance free, a type of connection (and matching box) that is designed not to loosen with time/vibration/thermal cycling. If you search on various sales sites you will find ones meeting this. Usually this is a spring-loaded type that maintains pressure, where as screws run the risk of loosening over time and are more likely to be too tight or too loose if you don't have experience or a torque screwdriver (and actually use it, not just leave it in the cupboard!).

Wago are generally the favourite here, but be aware that you need to get the correct combination of box and terminal to meet the MF designation. Also take care as usually the push-on Wago (and similar brands) are only suited to solid (i.e. single core) wires, whereas the clamp-type of terminal will work with both solid and stranded wire.

But as already said, it is always better to avoid junctions if you possibly can (and doubly so if concealed) and run new cable from socket to socket for your ring.

Let's not forget that there are some MF boxes out there that will only satisfy the MF criteria once they have been closed and sealed with a Ziptie, closing alone will not qualify as MF (even though you used push fit connectors)
 
Let's not forget that there are some MF boxes out there that will only satisfy the MF criteria once they have been closed and sealed with a Ziptie, closing alone will not qualify as MF (even though you used push fit connectors)
Eh? I don’t think so.
there are some MF boxes out there that only comply as an MF ASSEMBLY if they are used in association with the correct connectors.
For example, Wago connectors in the appropriate WAGOBOX.
Anything else does not comply with
BS EN 60670.
 
Eh? I don’t think so.
there are some MF boxes out there that only comply as an MF ASSEMBLY if they are used in association with the correct connectors.
For example, Wago connectors in the appropriate WAGOBOX.
Anything else does not comply with
BS EN 60670.

@Lister1987 is correct. Line 3 of the MF instructions provided with a Wagobox specify that the lid should be secured with a cable tie. This is in the seperate section of the pamphlet on how to achieve MF compliance with the product
 
@Lister1987 is correct. Line 3 of the MF instructions provided with a Wagobox specify that the lid should be secured with a cable tie. This is in the seperate section of the pamphlet on how to achieve MF compliance with the product
Might as well have put them around Ashley 401's for all the good.
Still the best uns for me. ;)
 

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