Allen-Bradley 1771-A3B1 PLC-5 12-Slot I/O Rack Assembly with Modules

Allen-Bradley 1771-A3B1 PLC-5 12-Slot I/O Rack Assembly with Modules Up for sale is a genuine Allen-Bradley PLC-5 12-slot I/O chassis assembly populated with a comprehensive mix of analog, digital, and communication modules. Sourced directly from industrial surplus maintenance inventory, this rugged, rack-mountable control assembly forms the foundation for reliable, heavy-duty processing loops, multi-axis system automation, and legacy plant grid expansions. The core of the assembly is a premium 12-slot backplane base unit built into a heavy zinc-chromate plated steel housing. The rack comes pre-populated with eight functional modules, including high-accuracy 12-bit analog input/output cards, specialty communication blocks, and multi-channel discrete input/output interfaces. Each module remains fully equipped with its corresponding front-facing wired terminal socket blocks, dramatically simplifying drop-in facility swap-outs or laboratory test bench configurations. Product Details Manufacturer: Allen-Bradley / Rockwell Automation (Made in USA) Chassis Catalog Number: 1771-A3B1 (Series B / Part No. 96815006 B01) Chassis Slot Capacity: 12 Available Module Slots Backplane Electrical Ratings: 5V Backplane: 24A @ 5.25 VDC Max; Memory Line: 0.5A @ 5.25 VDC Max Populated Modules Included: 1x Analog Input Module (12-Bit Architecture) 1x 1771-IFE/C 12-Bit Enhanced Analog Input Module 2x Analog Output Modules (12-Bit Architecture) 1x 1771-IBD 10-30 VDC Discrete Input Module 3x Blue/Green Coded Discrete/Digital Function Modules Hardware Interface Details: Standard lower wiring barrier arm tracks with multi-position terminal strip blocks included on all populated slots. Item Condition Used. This complete PLC-5 I/O chassis assembly was cleanly uninstalled from an operational, decommissioned industrial facility enclosure system. The main iridescent zinc-chromate coated metal frame, slot guides, and rear backplane motherboard pins are structurally solid and entirely free from frame warping, deep dents, or moisture damage. The module faces, status indicator windows, and plastic latch hinges are fully intact. The wiring arm blocks show typical light terminal oxidation, handling scuffs, and minor cosmetic warehouse shelf dust from long-term storage, but are entirely free from thermal burn tracking or carbon residues. The assembly is sold strictly as-is, unverified for individual channel loop software configurations or active runtime calibration thresholds. CONDITION: USPI - Used Surplus Previously Installed (OEM) WARRANTY: 90 DAYS SAME DAY SHIPPING AVAILABLE ON ORDERS MADE BEFORE 4PM EST. (CAN SHIP COLLECT ON UPS OR FEDEX ACCOUNT) SELL YOUR SURPLUS PremiumPLC BUYS ALL TYPES OF NEW AND USED INDUSTRIAL AUTOMATION & MRO SURPLUS _________________________________________________________________________________ Pallet 120