Stepping down 24v to 5v (bell wire)?

[DanMcLiverpool]

Long story short, thanks to the help of a few members in here I'm close to finishing a swap for my old alarm system to a new ring system.

Wire previously used for the keypad has been identified and the alarm box stripped out.

2 questions:

1. Is it safe to terminate both the keypad bell wire and a my mains flex cable in the same wago? I believe a bell wire would have less rating, is it safe? I need to do this to power the keypad the other end of the bell wire, basically.

2. The new ring keypad is usually powered by a 5v micro usb, I'm thinking of getting something like this for the keypad end to step it down from the 24v (from the mains) to the little 5v USB it needs. My concern is that it's not stepped down until it hits this adapter, is that a problem?



Just for further context, this is what it looks like the other end (where the alarm box was), in blue is what powered the alarm, in green is the bell wire:

 

[Wilko]

For Q1 - to be safe the extra low voltage (less than 50V) should be segregated from the low voltage (230V here) so if that’s the voltages used in the wiring, then 2 boxes for me.

 

[DanMcLiverpool]

For Q1 - to be safe the extra low voltage (less than 50V) should be segregated from the low voltage (230V here) so if that’s the voltages used in the wiring, then 2 boxes for me.

Thanks for the quick reply mate!

What do you mean 2 boxes, sorry?

I didn't mean under the same screw/clip, just meant connected together. I'm unsure whether it needs a transformer on that end too?

 

[DanMcLiverpool]

Apologies, this is probably title'd wrong, it's not 24v is it.