** The following considerations should be taken:
When cable length > 5 m → A twisted and shielded cable must be used.
When cable length > 15 m → It can happen that the resistivity of the cable or an excess of noise in
the line, produces a potential drop in it. In these cases, a high sensitivity relay must be inserted,
close to the CCB2.0 panel, which is actuated externally.
Example: Connection at J21 (H1):
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