Small Scale Offgrid Solar PV: Installation Manual
A1.3 Joints with connector blocks.
Connector blocks are available from various electrical suppliers in Guatemala. Avoid buying
dubious quality connectors; some cause problems when tightening the screws. If the terminal is
big enough for two wires to fit in the same side this is preferable.
With both cables going into the same side of the terminal block.
1. With the first cable, measure how much insulation it’s necessary to remove for the cable to
enter to the end of the terminal and strip it. Twist the strands together. Repeat with the
second cable.
2. Completely slacken the terminal screws. Twist the cables together. When positioning the
terminal on the end of the cable, make sure that no strands stick out of the interior metal
tube. The end of the cable should reach the end of the metal tube, and there shouldn’t be
bare cable on the entry to the terminal.
3. Completely tighten the terminal screws. Make sure it’s strong by pulling. Protect with tape.
If the two wires are too thick to fit in together, connect with one each side of the terminal
block
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