With the isolator open, verify both positive and negative are de‑energized at the load side in a floating array. For grounded arrays, follow the grounding scheme and switch the correct conductors per local code.
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The article explains how to determine the positive and negative terminals of a solar panel, crucial for proper installation to avoid energy wastage.
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Generally, the leading wire of the left box corresponds to the negative pole, and the right side corresponds to the positive pole, but this depends on whether the module is placed vertically or horizontally, so you must look for the laser-engraved marking next to the cable gland.
[PDF Version]
Generally, the leading wire of the left box corresponds to the negative pole, and the right side corresponds to the positive pole, but this depends on whether the module is placed vertically or horizontally, so you must look for the laser-engraved marking next to the cable.
[PDF Version]
