I recently bought this subpanel (Square D, HOM612L100SCP) for my small detached workshop, see link below.

Just going to have 2 circuits initially, 1 20A for receptacles and 1 15A for lighting. In the instructions it mentions wiring using the main lugs or a main breaker, but I didn't see anything about how to actually wire the main breaker.

How do I go about doing this? Is it even worth doing with just two breakers anyways?

Thanks,

Mike

Here is a link that might be useful: Square D Panel