DIY 16mm2 IP65 Junction box problem

[Solar2020]

DIY poster : Hello, I am trying to connect two 16mm2 wires together in an ip65 junction box, but the holes are not big enough for the both the wires to push into. I am looking for a junction box that can join two 16mm2 wires. I have tried googling , even ordered things I though would work, but did not...so i am now asking here. In context :

I have a home 1.2kw/24v Solar setup. The two wires I want to join , go from my 450ah Battery Bank to my 800w Victron Inverter, to the left in the photo below. I have included a photo of an ip65 junction box with two wires joining together to demonstrate what I mean.

Thank you in advance for your help

 

[Solar2020]

Hi Lucien, Darkwood et al, thanks for the replies, it is all very helpful, I am learning a lot. I did not realise the sheer number of connectors that exist in the electrical world. I now understand the elevated risks of screws against clamps and the possibility of poor terminations. I have a lot to consider and watch out for.

I might buy a selection and judge each once they have arrived. I will purchase the additional end stops and clamps Darkwood, so thank you for providing the additional information

I might not be able to reply much more tonight as I am providing surf life saving sessions tonight here in not so sunny Cornwall, but will read any replies and reply back tomorrow

Thanks again for all the help

 

[Darkwood]

Well with all respect the sign out was most unexpected ( surf life saving sessions )

 

[Zerax]

If it were me... for 16mm2 stranded cables... I'd definitely be using decent hex-crimped copper-tube ring terminals then bolt to a stud as Lucien has suggested.

 

[Strima]

If it's just those two cables you're trying to connect and it's indoor then a Henley block would suffice: 5-Way SP 100A Service Connector Block 25mm² - https://www.NoLinkingToThis/p/5-way-sp-100a-service-connector-block-25mm/82608#product_additional_details_container

 

[Solar2020]

Yes, I do a bit of surf life saving coaching in the evenings. Just a quick message to say thanks for all the help, the advice paid off and I have now joined the 16mm2 wires and everything works. In the end I used Sigma line Taps. Once I have saved a little more cash I will try and get a decent crimping tool. Thank you