The Allen-Bradley / Rockwell Automation 1756-IA8D is a 120V AC ControlLogix Digital Input Module. Operating voltage of 1756IA8D ranges from 79...132V AC, 47...63Hz. 1756-IA8D houses 8 diagnostic inputs (4 points/group). It has a total backplane power of 0.58W, off-state voltage max. of 20V, on-state current max. of 16mA @ 132V AC, and an inrush current max. of 250mA peak. Removable terminal block housing are the 1756TBNH and 1756TBSH. Isolation voltage of 1756-ia8d is 125V (continuous).
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