My workshop / man cave has a 30A supply split in to a lighting circuit and 2 16A MCB ring mains. The machine I am building is a 'light weight' CNC gantry router for cutting wood and possibly some aluminium (very slowly).

See http://www.mycncuk.com/threads/14590...-Gantry-Router

I am planning to use a 1 KW kress spindle and 4 x 5A closed loop stepper motors, so the electrical demand is quite low. I was going to rely on the consumer unit for my main protection and just have a No Volt Relay, On/Off switch and Emergency Stop on the mains side of the machine.

Electrics is not my thing, but I haven't killed myself yet.........

Is it worth putting a 6A MCB in the enclosure?