ABB DSDX451 EXPANSION I/O MODULE$1,100.00 In stock ABB DSDX451 EXPANSION I/O MODULE quantity Add to cart SKU: 170864986316 Category: Uncategorized Description Additional information Description USED ABB DSDX451 EXPANSION I/O MODULE 12-SHELF 57 RB Additional information Weight 1 lbs We Buy New and Used Surplus Inventory - Sell to Us