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Esse-ti HELPY COMPACT - Page 4

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Page 4 TERMINAL BLOCKS
— Negative
AL1 Alarm input
(2)
1
(1)
:
can be connected to a block –, to the block +12 or to an external reference
(2)
:
allows to connect voltage free contact pushbuttons (NO or NC) or powered pushbuttons
(3)
:
allows to connect voltage free contact (NO or NC)

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