MC4 connectors

The description on TLC's website reads

Can be installed on any conventional solar module junction box, or solar combiner box
interconnection or added to solar modules with existing MC4/Type 4 connectors for extended distances.
Greatly speeds up installation of solar array.

With excellent ageing resistance and UV endurance, it can be used in harsh environments.
The cable connects by means of a rivet and lock.
It does not need extra instruments for the removal of plugs and removal will not cause any harm to plugs.

Male connectors are fully labelled "Do not disconnect under load"​

Does that answer your question ?

There is a special spanner for doing them up. http://www.tlc-direct.co.uk/Products/TMSL906.html
 
Not sure. Can't tell if this relates to connecting the cable to the plug/socket, or the plug/socket to the solar panel.

I am wondering whether I should buy cables and plugs separately, or buy them made up.
 
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