Look at the switch and load on the quickwire website This is a 4 terminals jb.
This is the link to the page. https://www.quickwire.co.uk/product/switch-load-16a/
Hope it helps.
this may help.
https://www.google.com/url?q=https://www.beama.org.uk/static/c3939aab-9b55-44e0-8b379d55d5fa305b/BEAMA-Technical-Bulletin-Connection-of-Unidirectional-and-Bidirectional-Protective-Devices.pdf&sa=U&ved=2ahUKEwi32Or_wP6FAxXyWEEAHdG8DSgQFnoECAcQAg&usg=AOvVaw2QmmYGgfZ0fERVo_VnlsBx...
BEAMA published a tech update last year and there was an article in wiring matters 99. The term is unidirectional, not omni. The amendment was announced a short while back. Hi-directional means the device works in both directions so is suitable for prosumer units. Unidirectional devices have an...
I would go back to the start of the thread, as it has meandered. 522.6.202 refers to 3 terms which create the zones. The terms are defined in Part 2 as follows:
1. Point - A termination of the fixed wiring intended for the connection of current-using equipment.
2. Accessory - A device...