Allen-Bradley SLC500 1746-A7 1746-P2 1746-IN16 1746-IB16. 1746-A7, Ser B, SLC500 7-Slot Rack. 1746-IN16, Ser C, SLC500 Input Module x 1 Piece. 1746-IB16, Ser C, SLC500 Input Module x 1 Piece.
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