USED SIEMENS 555-1101 CPU MODULE 5551101 SIMATIC TI555$500.00 Out of stock SKU: 173263694903 Category: Other Description Additional information Description USED SIEMENS 555-1101 CPU MODULE 5551101 SIMATIC TI5551998 BB Additional information Weight 2.00 lbs MPN 555-1101 Brand SIEMENS We Buy New and Used Surplus Inventory - Sell to Us