ABB
C1920N 3BDS014113
ABB S900 CI920N 3BDS014113 Communication Interface Module CIPB Profibus PLC I/O
Only 4 left
Free shippingShips next business day
$194.89
PLCs & Automation
2,296 listings · 2,206 in stock
2,296 PLCs & Automation listings in 6 categories, from makers like Siemens, Allen-Bradley, Mitsubishi. Surplus, used and new-surplus, every item photographed. Free shipping in the lower 48 and zero lead time on everything in stock.
Categories in PLCs & Automation
ABB
AI93IN
ABB S900 AI931N 3KDE175513L9310 Analog Input Module AI4H HART 4-Channel I/O PLC
Only 5 left
Free shippingShips next business day
$396.89
Allen-Bradley
1771-IA
Allen-Bradley 1771-IA Series C 120V AC Input Module PLC-5 Rockwell Automation
Only 2 left
Free shippingShips next business day
$24.89
Square D
C30585-006-01
Square D C30585-006-01 8881 SA-1 System Analyzer Board 120V 60Hz PLC Industrial
In stock
Free shippingShips next business day
$639.89
Square D
8881 CA-1
Square D 8881 CA-1 C30585-030-01 SY/MAX Communication Adapter Module PLC Board
In stock
Free shippingShips next business day
$119.89
Square D
C30585-008-01
Square D C30585-008-01 8881 SC-1 Scanner Card 120VAC 60Hz Industrial Automation
In stock
Free shippingShips next business day
$73.89
Hima
H7506
Hima H7506 Bus Terminal Module Safety System PLC Industrial Automation Control
Only 3 left
Free shippingShips next business day
$110.89
ABB
R403425
ABB Bailey R403425 40TE3209A0 Infi 90 ITB CIO Communication Termination Board
Only 2 left
Free shippingShips next business day
$89.89
ABB
AM7B-2
ABB Bailey AM7B-2 R210684 Infi 90 Analog Master Module Isolated RTD Input DCS
Only 4 left
Free shippingShips next business day
$199.89
Foxboro
P0400YC
Foxboro P0400YC FBM2 REV-0Y Thermocouple Input Module I/A Series Industrial DCS
Only 1 left
Free shippingShips next business day
$62.89
Siemens
505-6010
Siemens 505-6010 Input Simulator Module TI Series 505 PLC Industrial Automation
Only 1 left
Free shippingShips next business day
$80.89
Allen-Bradley
1772-LH
Allen-Bradley 1772-LH Processor Interface Module PLC-2 Industrial Automation USA
Only 1 left
Free shippingShips next business day
$39.89
CTC
AMM-4000-2
CTC Parker AMM-4000-2 Access 4000 PLC Control System Master Module Processor USA
Only 1 left
Free shippingShips next business day
$2,249.89
Acopian
RD28M13A
Acopian RD28M13A R28M13 Regulated Power Supply 28V 5A Rack Mount Linear Module
In stock
Free shippingShips next business day
$1,528.89
Phoenix Contact
Phoenix Contact UMK-SE 11.25-1 DIN Rail Relay So
Phoenix Contact UMK-SE 11.25-1 DIN Rail Relay Socket Module 120V Industrial PLC
Only 2 left
Free shippingShips next business day
$6.89
Allen-Bradley
1771-IA
Allen-Bradley 1771-IA Series C Input Module 120V AC/DC PLC-5 Rockwell Automation
Only 1 left
Free shippingShips next business day
$21.89
Siemens
6ES7132-4BD02-0AA0
Siemens 6ES7132-4BD02-0AA0 Simatic S7 ET200S Digital Output Module 4DO PLC 24VDC
Only 1 left
Free shippingShips next business day
$7.89
Mettler Toledo
M700X
Mettler Toledo M700X Output Module 52 121 178 M 700X Industrial Process Control
Only 1 left
Free shippingShips next business day
$89.89
Hima
F7133
Hima F7133 4 Channel Power Distribution Module 98 4713302 01 Safety PLC Control
Only 1 left
Free shippingShips next business day
$358.89
ADC
T1R2D0U2AB
ADC Telecommunications T1R2D0U2AB 2-42935-3354 T1 Repeater Module Industrial
In stock
Free shippingShips next business day
$499.89
Gould
AS-B810-008
Gould Modicon AS-B810-008 115VAC Isolated Output Module 8 Point PLC Automation
In stock
Free shippingShips next business day
$27.89
Gould
AS-B801-000
Gould Modicon AS-B801-000 I/O Slot Cover Filler Module PLC Industrial Automation
Only 5 left
Free shippingShips next business day
$15.89
Hima
HIMAX
Hima Himax X-DO 12 01 Digital Output Module 985210204 12 Point Safety PLC Part
In stock
Free shippingShips next business day
$1,100.89
Hima
HIMAX
Hima Himax X-DI 16 01 Digital Input Module 985210222 16 Point Safety PLC Control
In stock
Free shippingShips next business day
$349.89
Get a quote on PLCs & Automation
Need more units than we list, a part you don't see here, or prices for a whole list? Send us the part numbers and quantities – we reply within 1 hour during business hours (Mon–Fri 9–3:30 CT).
Guides for PLCs & Automation
- Legacy PLCsSLC 500 End of Life: Keep Running or Migrate?Where the SLC 500 stands, which spares keep one running, and how a phased move to CompactLogix keeps downtime short.
- Parts identificationHow to Read an Allen-Bradley Catalog Number & SeriesBulletin numbers, module codes, suffixes, the series letter and firmware revision – and how each one affects whether a replacement will work.