The first string has been electrically connected to the solar system on Novembre, 26th.

The string fits exactly in the bucket. On the left side the big wire (cross section = 95 mm² - AWG 3/0) with the blue sleeve is the negative terminal. On the right side the big wire with the red sleeve is the positive terminal.

There is plenty of room left in the bucket for future expansion.

The guy in the bucket gives an idea of the size:

Close up on the interconnections. The modules are easily connected/disconnected thanks to a 10 mm wrench: