Moore Industries
Moore Industries SLM/4-20MA/4-20MA/117AC [AB] Si
Moore Industries SLM/4-20MA/4-20MA/117AC [AB] Signal Limiting Module Industrial
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$199.99
PLC Modules & Accessories
893 listings · 870 in stock
870 PLC Modules & Accessories listings are on our shelves today, each one photographed as the actual unit that ships – not a stock picture. You will find parts from Siemens, Mitsubishi and Omron among others.
More about PLC Modules & Accessories
By condition, the stock breaks down as 564 used, 195 open box, 102 new surplus, 5 refurbished and 4 sold for parts or repair. You can pick one up for as little as $6.89; the most expensive is $14,998.89. Everything ships from Princeton, TX: orders placed by 3 PM CT on a business day (Mon–Fri) go out the same day, and shipping is free to the lower 48. Freight-size items are quoted after packing. Our 30-day guarantee covers every item here except those sold for parts or repair.
Beckhoff
BK3150
Beckhoff BK3150 Profibus Compact Bus Coupler 24VDC PLC I/O Industrial Automation
Only 1 left
Free shippingShips today by 3 PM CT
$64.89
Allen-Bradley
1492-CM1771-LD011
Allen-Bradley 1492-CM1771-LD011 Swing-Arm Conversion Module 16-Point Output PLC
Only 1 left
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$179.89
Sanrex
SSA250AA80
SanRex SSA250AA80 Power Semiconductor Module Sansha Electric Japan Industrial
Only 1 left
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$24.89
Allen-Bradley
1745-E105
Allen-Bradley 1745-E105 SLC 100 Relay Output Expansion Unit Series C PLC Module
Only 2 left
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$14.89
Siemens
6ES7 972-0BB52-0XA0
Siemens 6ES7 972-0BB52-0XA0 Simatic Profibus Bus Connector w/ PG Socket 12Mbps
Only 1 left
Free shippingShips today by 3 PM CT
$8.89
Allen-Bradley
1747-PIC
Allen-Bradley 1747-PIC SLC 500 Personal Computer Interface Converter Ser A PLC
Only 1 left
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$41.89
Reliance Electric
45C270
Reliance Electric 45C270 8K Memory Expansion Module 802820-77RK J-3088A PLC Card
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$49.89
Reliance Electric
0-57408-B
Reliance Electric 0-57408-B Power Module Interface Digital Control System PLC
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$20.89
ABB
P-HC-BRC-30000000
ABB P-HC-BRC-30000000 BRC300 Harmony Bridge Controller 5VDC 2.0A Control Module
Only 1 left
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$40.89
ABB
INICT03
ABB Bailey INICT03 Infi 90 INFI-NET to Computer Transfer Module +5VDC 10W PLC
Only 1 left
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$4,183.89
ABB
6637830G1
ABB Bailey 6637830G1 Bus Monitor Module Infi 90 for IEPEP03 IEPEP04 NPEP05 PLC
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$105.89
Siemens
3RA1921-1DA00
Siemens 3RA1921-1DA00 Sirius Link Module Connection Block Size S00/S0 Industrial
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$10.89
Emerson
1C31179G02
Emerson Ovation 1C31179G02 Remote I/O MAU Media Attachment Unit Westinghouse
Only 1 left
Free shippingShips today by 3 PM CT
$70.89
Omron
C200H-OC222
Omron C200H-OC222 Sysmac Relay Output Unit 12 Point 250VAC 24VDC 2A PLC Module
Only 1 left
Free shippingShips today by 3 PM CT
$27.89
Balluff
RL64T-322-000
Balluff RL64T-322-000 Remote Link Interface Unit DC24V RLT-101 Industrial Module
Only 1 left
Free shippingShips today by 3 PM CT
$85.89
Emerson
KJ3211X1-BA1
Emerson DeltaV KJ3211X1-BA1 SOE Card 16 Channel + KJ4001X1-CJ1 Terminal Block
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$629.89
Schneider Electric
TSXPSY1610
Schneider Electric TSXPSY1610 Modicon Premium Power Supply 24VDC 16W Module
Only 2 left
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$110.89
Industrial part
DMC-20261A
Optrex DMC-20261A NY-LY-B 20x2 Character LCD Display Module Industrial Equipment
Only 1 left
Free shippingShips today by 3 PM CT
$32.89
Allen-Bradley
1492-CM1771-LD011
Allen-Bradley 1492-CM1771-LD011 Swing-Arm Conversion Module 16-Point Output PLC
Only 1 left
Free shippingShips today by 3 PM CT
$179.89
Beckhoff
BK3150
Beckhoff BK3150 PROFIBUS DP Bus Coupler Module Industrial Automation PLC Control
Only 1 left
Free shippingShips today by 3 PM CT
$64.89
Bailey
INIIT03
Bailey Controls INIIT03 INFI 90 INFI-NET to INFI-NET Transfer Module ABB DCS PLC
Only 2 left
Free shippingShips today by 3 PM CT
$552.89
Mitsubishi
AJ71C24-S6
Mitsubishi AJ71C24-S6 MELSEC A Series Computer Link Module RS-232C RS-422 PLC
Only 3 left
Free shippingShips today by 3 PM CT
$197.89
Siemens
3RG9002-0DA00
Siemens 3RG9002-0DA00 AS-Interface Module 4E/4A 4 Input 4 Output PNP 24VDC F90
In stock
Free shippingShips today by 3 PM CT
$89.89
Get a quote on PLC Modules & Accessories
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).
Coming soon in PLC Modules & Accessories: price being set
On our shelf, not priced yet. Open one to request a quote or get an email when it's priced.
- Phoenix Contact PLC-BSC-24UC/21HC 2967785 24VAC VDC
- PLC-BSC-24UC/21HC 24VAC 2967785
- PRX USA 2331 363100 Rectifier Diode PLC Stack Heat Sink Electric
- Gould Modicon 079-500-0012 24VDC
- Basler Electric AEM-2020 Analog Expansion Module
- Siemens 6GK1105-2AA10
- Allen Bradley SLC 500 1747-PIC
- Allen-Bradley 1734-TOPS Series A
- Allen Bradley 1734-RTB SER A 95716002 REV. A01
- Mitsubishi BD990D216H01 Melsec
- Allen Bradley SLC 500 1746-P1 SER A
- Allen Bradley 1734-TOPS SER A
Guides for PLC Modules & Accessories
- Obsolete partsFinding Obsolete Siemens, GE Fanuc & Fanuc PartsHow to read Siemens order numbers, GE Fanuc catalog numbers and Fanuc part numbers, which version details matter, and where surplus fits.
- Parts identificationHow to Read Siemens Order Numbers (MLFB)What the 6ES7, 6SL3, 3RT and 3VA prefixes mean, where to find the product version and firmware, and what to check before you swap a Siemens part.
PLC Modules & Accessories: common questions
Do you have PLC Modules & Accessories in stock?
Yes. 870 PLC Modules & Accessories listings are in stock right now, priced from $6.89 to $14,998.89. Every one is photographed, and all of them are listed on this page.
Which brands of PLC Modules & Accessories do you carry?
Mostly Siemens, Mitsubishi and Omron, plus 127 more brands. The Brand filter on this page narrows the list to one maker.
Do in-stock items in PLC Modules & Accessories ship the same day?
Yes, when you order by 3 PM CT on a business day (Mon–Fri): in-stock items ship the same day from Princeton, TX, with free shipping to the lower 48. Freight-size items are quoted after packing.
Can I request a part you don't list in PLC Modules & Accessories?
Yes. Request a quote with the part number and we check our warehouse and our sourcing network. We answer within 1 hour during business hours (Mon–Fri 9–3:30 CT).