Siemens
6ES7421-1BL01-0AA0
Siemens 6ES7421-1BL01-0AA0 Simatic S7-400 SM 421 Digital Input Module 32 DI 24V
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$17.89
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
Siemens
6ES7460-0AA01-0AB0
Siemens 6ES7460-0AA01-0AB0 Simatic S7-400 IM 460 Interface Connection Module PLC
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$84.89
Siemens
6ES7422-1BL00-0AA0
Siemens 6ES7422-1BL00-0AA0 Simatic S7-400 SM 422 Digital Output Module 32 DO 24V
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$24.89
Mitsubishi
A1SJHCPU
Mitsubishi A1SJHCPU CPU Unit MELSEC A Series PLC 8K Step Programmable Controller
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$37.89
Schneider Electric
140DRA84000
Schneider Modicon 140DRA84000 Quantum 16 Point Relay Output Module Automation
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$23.89
Schneider Electric
140DRC83000
Schneider Modicon 140DRC83000 Quantum 8 Point Relay Output Module PLC Automation
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$18.89
Schneider Electric
140CRA93200
Schneider Modicon 140CRA93200 Quantum RIO Drop S908 Remote I/O Adapter Module
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$62.89
Schneider Electric
140DAI54000
Schneider Modicon 140DAI54000 Quantum 16 Point 115VAC Input Module Automation
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$15.89
Mitsubishi
A1SX40
Mitsubishi A1SX40 MELSEC PLC Input Module 16 Point DC 12/24V Industrial Control
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$9.89
Mitsubishi
A1SY50
Mitsubishi A1SY50 MELSEC PLC Output Module 16 Point DC 12/24V 0.5A Transistor
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$9.89
Mitsubishi
A1SX41
Mitsubishi A1SX41 MELSEC PLC Input Module 32 Point DC 12/24V Industrial Control
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$9.89
Mitsubishi
A1SX40
Mitsubishi A1SX40 MELSEC PLC Input Module 16 Point DC 12/24V Industrial Control
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$9.89
Schneider Electric
Schneider Telemecanique TSXTLYEX Bus X Line Term
Schneider Telemecanique TSXTLYEX Bus X Line Terminator Modicon TSX Premium PLC
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$9.89
Vicor
VI-L53-CU
Vicor VI-L53-CU Isolated DC-DC Converter 150V to 24V 200W Chassis Mount Module
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$379.89
Siemens
6AV6671-5AE10-0AX0
Siemens 6AV6671-5AE10-0AX0 Connectivity Box DP Plus Mobile Panel 24VDC Junction
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$681.89
Industrial part
IOP104
Metso IOP104 081808 Rev G/G Input Module Leeds Northrup DCMS-008-ES Industrial
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$769.89
Siemens
6ES7468-1BB50-0AA0
Siemens 6ES7468-1BB50-0AA0 Simatic S7-400 IM Cable K-Bus 1.5m Industrial PLC
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$83.89
Siemens
6ES7441-2AA04-0AE0
Siemens 6ES7441-2AA04-0AE0 Simatic S7-400 CP 441-2 Communication Module PLC
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$269.89
Siemens
6ES7972-0BB41-0XA0
Siemens 6ES7972-0BB41-0XA0 Profibus DP Bus Connector 12Mbit 90 Deg PG Socket PLC
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$9.89
Siemens
6ES7972-0BB50-0XA0
Siemens 6ES7972-0BB50-0XA0 Simatic DP PROFIBUS Bus Connector 90 Deg PG Socket
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$9.89
Siemens
6ES7461-0AA00-7AA0
Siemens Simatic S7-400 6ES7461-0AA00-7AA0 Terminator Plug for IM 461-0 Module
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$50.89
AEG
AS-BDEP-211
AEG Modicon AS-BDEP-211 DEP 211 Discrete Input Module 8-Point 115VAC Isolated
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$163.89
Toshiba
EX25-MRO6275A
Toshiba EX25-MRO6275A RO-6275A EX Series Relay Output Module 250VAC 30VDC 2A PLC
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$117.89
Square D
8030 ROM-271
Square D 8030 ROM-271 SY/MAX Relay Output Module 240VAC 120VDC Automation Part
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$22.89
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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.