240V circuit breaker

[Anthony]

Have a 2001Bavaria40 ... am installing a small microwave oven (700watts) which will run off my 240V generator unit which delivers 1000watts for battery charge backup. ( I simply run it on the swim platform for ventilation and plug in the shore power lead.)
Shore power appears to go into the circuit breaker and then out to the charger unit and a single power point on the switch panel.
My inquiry is there appears to be a set of three spare outlets ( pos/neg/earth) on the top of the circuit breaker.... similarly colour coded to the other two.... would these be ok for the microwave supply?
I can always test with a multimeter but wondered if anyone knew.
My circuit diagram is helpfully in deutsch!

[Nigel]

I think more info on the circuit breaker is needed, with pictures if you can. German diagrams are actually fairly easy to follow, so post if you like.

[Anthony]

Going to press the abort button on this one!
The 700watt microwave, as so labelled on the box, actually requires 1250watts to run which exceeds my generators 1000watts, so I'm forgetting all about it!