Why should the spacing between terminal blocks when installed side by side not be less than 150 mm?
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Why should the spacing between terminal blocks when installed side by side not be less than 150 mm? What do people say? Are these distances specified by standards, or are they the results of experiments?
Is it easy to work when the distance is too small? Is it easy to connect and route the wires? Once you think about it this way, it becomes clear