• 805-620-0948

Allen-Bradley SLC 500

Shop surplus Allen-Bradley SLC 500 parts: SLC 5/03, 5/04 and 5/05 processors, 1746 I/O modules, 1747 communication and memory modules, racks and power supplies. Rockwell has discontinued the SLC 500 line, so surplus is often the fastest way to keep these systems running.

Every order ships free from Ventura, CA, with same-day shipping when ordered by 2 PM Pacific and 60-day free returns.

See also all Allen-Bradley PLCs or sell your surplus PLCs.

Showing 1–48 of 55 products
Allen Bradley 1747-L541 Series B SLC 500 5/04 CPU Processor 16K Memory

Allen Bradley 1747-L541 Series B SLC 500 5/04 CPU Processor 16K Memory Brand: Allen-Bradley / Rockwell Automation Part Number: 1747-L541 (Series B, Rev 3) Processor...

Allen Bradley 1747-L541 Series B SLC 500 5/04 CPU Processor 16K Memory Brand: Allen-Bradley / Ro...

In Stock
$156.95
Add to cart
Allen Bradley 1747-SDN Series B FRN 4.015 SLC 500 DeviceNet Scanner Module

Allen Bradley 1747-SDN Series B FRN 4.015 SLC 500 DeviceNet Scanner Module Module Type: DeviceNet Scanner Module Device Capacity: Supports up to 63 nodes Communication...

Allen Bradley 1747-SDN Series B FRN 4.015 SLC 500 DeviceNet Scanner Module Module Type: DeviceNe...

In Stock
$33.95
Add to cart
Spectrum Controls 1746sc-NI8u Series B Rev 6.00 SLC 500 8-Ch Analog Input Module

Spectrum Controls 1746sc-NI8u Series B Rev 6.00 SLC 500 8-Ch Analog Input Module Brand: Spectrum Controls (Rockwell Automation Enabled) Part Number: 1746sc-NI8u (Series B, Rev...

Spectrum Controls 1746sc-NI8u Series B Rev 6.00 SLC 500 8-Ch Analog Input Module Brand: Spectrum...

In Stock
$854.95
Add to cart
Allen Bradley 1747-L531 Series D Rev 4 SLC 500 5/03 CPU 1747-M11 Memory 1747-OS302

Allen Bradley 1747-L531 Series D Rev 4 SLC 500 5/03 CPU 1747-M11 Memory 1747-OS302 Brand: Allen-Bradley / Rockwell Automation CPU Model: 1747-L531 (Series D, Proc...

Allen Bradley 1747-L531 Series D Rev 4 SLC 500 5/03 CPU 1747-M11 Memory 1747-OS302 Brand: Allen-...

In Stock
$94.95
Add to cart
Allen Bradley 1746-OB16 Series D SLC 500 16-Point 24V DC Digital Output Module

Allen Bradley 1746-OB16 Series D SLC 500 16-Point 24V DC Digital Output Module Brand: Allen-Bradley / Rockwell Automation Model: 1746-OB16 (Series D) Number of Outputs:...

Allen Bradley 1746-OB16 Series D SLC 500 16-Point 24V DC Digital Output Module Brand: Allen-Brad...

In Stock
$18.95
Add to cart
Allen Bradley 1747-SN Series B Host FRN 1.0b SLC 500 Remote I/O Scanner Module

Allen Bradley 1747-SN Series B Host FRN 1.0b SLC 500 Remote I/O Scanner Module Brand: Allen-Bradley / Rockwell Automation Model: 1747-SN (Series B, Host FRN...

Allen Bradley 1747-SN Series B Host FRN 1.0b SLC 500 Remote I/O Scanner Module Brand: Allen-Brad...

In Stock
$47.95
Add to cart
Allen Bradley 1747-L541 Series C Rev C SLC 500 5/04 CPU Processor 16K Memory

Allen Bradley 1747-L541 Series C Rev C SLC 500 5/04 CPU Processor 16K Memory Brand: Allen-Bradley / Rockwell Automation Catalog Number: 1747-L541 (Series C, Rev...

Allen Bradley 1747-L541 Series C Rev C SLC 500 5/04 CPU Processor 16K Memory Brand: Allen-Bradle...

In Stock
$151.95
Add to cart
Allen Bradley 1746-IA16 SLC 500 Digital Input Module 16 Point 120V AC Series C

Allen Bradley 1746-IA16 SLC 500 Digital Input Module 16 Point 120V AC Series C Module Type: Discrete Digital AC Input Module Number of Inputs: 16...

Allen Bradley 1746-IA16 SLC 500 Digital Input Module 16 Point 120V AC Series C Module Type: Disc...

In Stock
$23.95
Add to cart
Allen Bradley 1746-IA16 SLC 500 Digital AC Input Module 16 Point 120VAC Series C

Allen Bradley 1746-IA16 SLC 500 Digital AC Input Module 16 Point 120VAC Series C• Brand: Allen-Bradley (Rockwell Automation)• Model/Part Number: 1746-IA16 (Series C)• Number of Inputs: 16 Digital AC Input Channels• Voltage...

Allen Bradley 1746-IA16 SLC 500 Digital AC Input Module 16 Point 120VAC Series C• Brand: Allen-Br...

In Stock
$17.95
Add to cart
Allen Bradley SLC500 1746-IA16 Ser C 16 Point 120V AC Digital Input Module

Allen Bradley SLC500 1746-IA16 Ser C 16 Point 120V AC Digital Input Module• Brand: Allen-Bradley (Rockwell Automation)• Model/Part Number: 1746-IA16 Series C• Input Type: 16-Point...

Allen Bradley SLC500 1746-IA16 Ser C 16 Point 120V AC Digital Input Module• Brand: Allen-Bradley ...

In Stock
$23.95
Add to cart
Allen Bradley 1746-IA16 Ser D SLC 500 16 Point 120V AC Digital Input Module

Allen Bradley 1746-IA16 Ser D SLC 500 16 Point 120V AC Digital Input Module• Brand: Allen-Bradley (Rockwell Automation)• Model/Part Number: 1746-IA16 Series D• Input Type:...

Allen Bradley 1746-IA16 Ser D SLC 500 16 Point 120V AC Digital Input Module• Brand: Allen-Bradley...

In Stock
$23.95
Add to cart
Allen Bradley 1746-NI8 SLC 500 Analog Input Module 8 Ch Voltage Current

Allen Bradley 1746-NI8 SLC 500 Analog Input Module 8 Ch Voltage Current• Part Number: 1746-NI8• Channels: 8 differential inputs, individually configurable for voltage or current• Input Signal Category:...

Allen Bradley 1746-NI8 SLC 500 Analog Input Module 8 Ch Voltage Current• Part Number: 1746-NI8• C...

In Stock
$156.95
Add to cart
Allen Bradley 1746-OV16 SLC 500 Output Module 16 Pt 10-50VDC

Allen Bradley 1746-OV16 SLC 500 Output Module 16 Pt 10-50VDC• Part Number: 1746-OV16• Outputs: 16 channels, DC sinking type• Voltage Range: 10-50 VDC, 24VDC Nominal• Current per Point: 0.5...

Allen Bradley 1746-OV16 SLC 500 Output Module 16 Pt 10-50VDC• Part Number: 1746-OV16• Outputs: 16...

In Stock
$66.95
Add to cart
Allen Bradley 1746-NI8 SLC 500 Analog Input Module 8 Ch Voltage Current

Allen Bradley 1746-NI8 SLC 500 Analog Input Module 8 Ch Voltage Current• Part Number: 1746-NI8• Channels: 8 differential inputs, individually configurable for voltage or current...

Allen Bradley 1746-NI8 SLC 500 Analog Input Module 8 Ch Voltage Current• Part Number: 1746-NI8• C...

In Stock
$208.95
Add to cart
Hardy HI 1746-WS SLC 500 Weigh Scale Module Series C

Hardy HI 1746-WS SLC 500 Weigh Scale Module Series C • Part Number: HI 1746-WS (Also 1746-WS)• Compatibility: Allen-Bradley SLC 500 series processor (local or remote rack)• Input Signal...

Hardy HI 1746-WS SLC 500 Weigh Scale Module Series C • Part Number: HI 1746-WS (Also 1746-WS)• Co...

In Stock
$242.95
Add to cart
Allen Bradley 1746-IB16 SLC 500 Input Module 16 Pt 10-30VDC

Allen Bradley 1746-IB16 SLC 500 Input Module 16 Pt 10-30VDC • Part Number: 1746-IB16• Channels: 16 digital input points, sinking type• Operating Voltage Range: 10–30 VDC• Nominal Input Current: 8...

Allen Bradley 1746-IB16 SLC 500 Input Module 16 Pt 10-30VDC • Part Number: 1746-IB16• Channels: 1...

In Stock
$28.95
Add to cart
Allen Bradley 1746-OB16 SLC 500 Output Module 16 Pt 10-50VDC

Allen Bradley 1746-OB16 SLC 500 Output Module 16 Pt 10-50VDC• Part Number: 1746-OB16• Channels: 16 digital output points, single group (sourcing)• Operating Voltage Range: 10–50 VDC nominal• Current per...

Allen Bradley 1746-OB16 SLC 500 Output Module 16 Pt 10-50VDC• Part Number: 1746-OB16• Channels: 1...

In Stock
$28.95
Add to cart
Allen-Bradley 1761-NET-ENI Ethernet Interface Module SLC 500 MicroLogix Control

Allen-Bradley 1761-NET-ENI Ethernet Interface Module SLC 500 MicroLogix Control• Manufacturer: Allen-Bradley• Series: A (Firmware Rev 1.02, as pictured)• Compatibility: Works with MicroLogix, SLC 500, and other...

Allen-Bradley 1761-NET-ENI Ethernet Interface Module SLC 500 MicroLogix Control• Manufacturer: Al...

In Stock
$332.95
Add to cart
Allen Bradley 1747-L541 Series C SLC 5/04 CPU Processor 16K Memory

Allen Bradley 1747-L541 Series C SLC 5/04 CPU Processor 16K Memory  Brand/Part No.: Allen Bradley Part #1747-L541 (Series C), an SLC 5/04 CPU Processor Unit. Memory: Features 16K words of...

Allen Bradley 1747-L541 Series C SLC 5/04 CPU Processor 16K Memory  Brand/Part No.: Allen Bradley...

In Stock
$189.95
Add to cart
Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input

Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input  Brand/Part No.: Allen Bradley Part #1746-IA16 (Series C). Function: 16-point discrete AC input module for the SLC...

Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input  Brand/Part No.: Allen Bradle...

In Stock
$52.95
Add to cart
Allen Bradley 1746-OV16 Series C SLC 500 16-Pt 10-50VDC Output Module

Allen Bradley 1746-OV16 Series C SLC 500 16-Pt 10-50VDC Output Module  Brand/Part No.: Allen Bradley Part #1746-OV16 (Series C). Function: 16-channel discrete DC source output module for the...

Allen Bradley 1746-OV16 Series C SLC 500 16-Pt 10-50VDC Output Module  Brand/Part No.: Allen Brad...

In Stock
$37.95
Add to cart
Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input

Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input Brand/Part No.: Allen Bradley Part #1746-IA16 (Series C). [1] Function: 16-point discrete AC input module for the...

Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input Brand/Part No.: Allen Bradley...

In Stock
$52.95
Add to cart
Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input

 Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input  Brand/Part No.: Allen Bradley Part #1746-IA16 (Series C). Function: 16-point discrete AC input module for the SLC...

 Allen Bradley 1746-IA16 Series C SLC 500 16-Pt 120VAC Digital Input  Brand/Part No.: Allen Bradl...

In Stock
$52.95
Add to cart
Allen Bradley 1746-IV16 Series C SLC 500 16-Pt 10-30VDC Digital Input

Allen Bradley 1746-IV16 Series C SLC 500 16-Pt 10-30VDC Digital Input  Brand/Part No.: Allen Bradley Part #1746-IV16 (Series C). Function: 16-point discrete DC sinking input module for the...

Allen Bradley 1746-IV16 Series C SLC 500 16-Pt 10-30VDC Digital Input  Brand/Part No.: Allen Brad...

In Stock
$28.95
Add to cart
Allen Bradley 1746-OV16 Series C SLC 500 16-Pt 10-50VDC Output Module

Allen Bradley 1746-OV16 Series C SLC 500 16-Pt 10-50VDC Output Module  Brand/Part No.: Allen Bradley Part #1746-OV16 (Series C). Function: 16-channel discrete DC source output module for the...

Allen Bradley 1746-OV16 Series C SLC 500 16-Pt 10-50VDC Output Module  Brand/Part No.: Allen Brad...

In Stock
$23.95
Add to cart
Allen Bradley 1746-IV16 Series C SLC 500 16-Pt 10-30VDC Digital Input

Allen Bradley 1746-IV16 Series C SLC 500 16-Pt 10-30VDC Digital Input Brand/Part No.: Allen Bradley Part #1746-IV16 (Series C). Function: 16-point discrete DC sinking input module for the...

Allen Bradley 1746-IV16 Series C SLC 500 16-Pt 10-30VDC Digital Input Brand/Part No.: Allen Bradl...

In Stock
$28.95
Add to cart
NEW Allen Bradley 1747-SDN SER D SLC 500 DeviceNet Scanner Module

NEW Allen Bradley 1747-SDN SER D SLC 500 DeviceNet Scanner Module  Brand/Part No.: Allen Bradley Part #1747-SDN (Series D, F/W 9.001 is mentioned in sources). Function: Single-slot DeviceNet...

NEW Allen Bradley 1747-SDN SER D SLC 500 DeviceNet Scanner Module  Brand/Part No.: Allen Bradley ...

In Stock
$522.95
Add to cart
NEW Northern Technologies SLC500 Program Cable

NEW Northern Technologies SLC500 Program Cable NOS, surplus in packaging. Packaging has wear.

NEW Northern Technologies SLC500 Program Cable NOS, surplus in packaging. Packaging has wear.

In Stock
$17.95
Add to cart
AMP SLC 5/03 5/04 Cable Programming Cable

AMP SLC 5/03 5/04 Cable Programming Cable Used condition, with normal signs of wear. Comes as shown, please check pics.

AMP SLC 5/03 5/04 Cable Programming Cable Used condition, with normal signs of wear. Comes as sho...

In Stock
$17.95
Add to cart
Allen Bradley 1747-L542 PROCESSOR MODULE SLC 500 SERIES SLC 5/04 5-24 VDC 32K

Allen Bradley 1747-L542 PROCESSOR MODULE SLC 500 SERIES SLC 5/04 5-24 VDC 32K Missing plastic piece on key cover as shownUsed condition, with normal signs...

Allen Bradley 1747-L542 PROCESSOR MODULE SLC 500 SERIES SLC 5/04 5-24 VDC 32K Missing plastic pie...

In Stock
$97.95
Add to cart
Allen Bradley 1747-L542 PROCESSOR MODULE SLC 500 SERIES SLC Ser. B NO KEY

Allen Bradley 1747-L542 PROCESSOR MODULE SLC 500 SERIES SLC Ser. B NO KEY  No key included Missing plastic cover on key as shownUsed condition, with...

Allen Bradley 1747-L542 PROCESSOR MODULE SLC 500 SERIES SLC Ser. B NO KEY  No key included Missin...

In Stock
$88.95
Add to cart
Allen Bradley 1747-PIC Personal Computer Interface Converter Series A

Allen Bradley 1747-PIC Personal Computer Interface Converter Series A Used condition, with normal signs of wear. Comes as shown, please check pics.

Allen Bradley 1747-PIC Personal Computer Interface Converter Series A Used condition, with normal...

In Stock
$57.95
Add to cart
NEW Northern Technologies Fanuc HMI-CAB-C52 CABLE 25 PIN MALE TO HMI CHANNEL 0 9 PIN RS-232 TO SLC 5/03 5/04 12 FOOT

NEW Northern Technologies Fanuc HMI-CAB-C52 CABLE 25 PIN MALE TO HMI CHANNEL 0 9 PIN RS-232 TO SLC 5/03 5/04 12 FOOTNOS, surplus

NEW Northern Technologies Fanuc HMI-CAB-C52 CABLE 25 PIN MALE TO HMI CHANNEL 0 9 PIN RS-232 TO SL...

In Stock
$33.95
Add to cart
Allen Bradley 1746-HSCE2 SER A FRN 2.0 SLC 500 Multi Channel High Speed Counter

Allen Bradley 1746-HSCE2 SER A FRN 2.0 SLC 500 Multi Channel High Speed Counter Used condition, with normal signs of wear. Comes as shown, please check...

Allen Bradley 1746-HSCE2 SER A FRN 2.0 SLC 500 Multi Channel High Speed Counter Used condition, w...

In Stock
$167.95
Add to cart
Allen Bradley 1747-L30L PROCESSOR MODULE SLC 500 FIXED I/O 30 TOTAL I/O CHANNELS 18 INPUT 12 OUTPUT

Allen Bradley 1747-L30L PROCESSOR MODULE SLC 500 FIXED I/O 30 TOTAL I/O CHANNELS 18 INPUT 12 OUTPUT Series B No plastic top covers as shownUsed...

Allen Bradley 1747-L30L PROCESSOR MODULE SLC 500 FIXED I/O 30 TOTAL I/O CHANNELS 18 INPUT 12 OUTP...

In Stock
$146.95
Add to cart
Allen Bradley 1747-L542 PROCESSOR MODULE 32 KB DH-485 RS232 SLC 5/04 MODULAR LOGIC CONTROLLER

Allen Bradley 1747-L542 PROCESSOR MODULE 32 KB DH-485 RS232 SLC 5/04 MODULAR LOGIC CONTROLLER Series C Rev C  No Key  Brand:Allen Bradley Manufacturer:Allen Bradley MPN:1747-L542...

Allen Bradley 1747-L542 PROCESSOR MODULE 32 KB DH-485 RS232 SLC 5/04 MODULAR LOGIC CONTROLLER Ser...

In Stock
$168.95
Add to cart
Allen Bradley 1746-OA16 Ser. C I/O MODULE 16 OUTPUTS 85-265 VOLT AC 370 MA BACKPLANE CURRENT LOAD

Allen Bradley 1746-OA16 Ser. C I/O MODULE 16 OUTPUTS 85-265 VOLT AC 370 MA BACKPLANE CURRENT LOADUsed condition, with normal signs of wear. Comes as...

Allen Bradley 1746-OA16 Ser. C I/O MODULE 16 OUTPUTS 85-265 VOLT AC 370 MA BACKPLANE CURRENT LOAD...

In Stock
$19.95
Add to cart
Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC Ser. C

 Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC Ser. C Missing front cover Used condition, with normal signs of wear. Comes as shown, please check pics....

 Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC Ser. C Missing front cover Use...

In Stock
$32.95
Add to cart
ALLEN BRADLEY 1747-SN I/O SCANNER MODULE UNIVERSAL REMOTE 600MA 5VDC

ALLEN BRADLEY 1747-SN I/O SCANNER MODULE UNIVERSAL REMOTE 600MA 5VDC Series BUsed condition, with normal signs of wear. Comes as shown, please check pics.

ALLEN BRADLEY 1747-SN I/O SCANNER MODULE UNIVERSAL REMOTE 600MA 5VDC Series BUsed condition, with...

In Stock
$19.95
Add to cart
PARTS Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC, 85mA Current Load

PARTS Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC, 85mA Current Load Chipped Plastic As Shown Selling AS-IS Parts AS-IS Parts. Untested

PARTS Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC, 85mA Current Load Chippe...

In Stock
$9.95
Add to cart
PARTS Allen-Bradley 1746-OW16 I/O Module, Digital Contact, 16 Outputs, 2 sets of 8, NO Relay

PARTS Allen-Bradley 1746-OW16 I/O Module, Digital Contact, 16 Outputs, 2 sets of 8, NO Relay Marked Bad Selling AS-IS Parts AS-IS Parts. Untested

PARTS Allen-Bradley 1746-OW16 I/O Module, Digital Contact, 16 Outputs, 2 sets of 8, NO Relay Mark...

In Stock
$9.95
Add to cart
Allen-Bradley 1747-L532 Processor, SLC5/03, Modular, 16KB, DH+, RS232, Chassis Mount

Allen-Bradley 1747-L532 Processor, SLC5/03, Modular, 16KB, DH+, RS232, Chassis Mount Series D Used condition, with normal signs of wear. Comes as shown, please check pics.

Allen-Bradley 1747-L532 Processor, SLC5/03, Modular, 16KB, DH+, RS232, Chassis Mount Series D Use...

In Stock
$123.95
Add to cart
Allen-Bradley 1746-OA16 I/O Module, Digital, 16 Outputs, Series C

Allen-Bradley 1746-OA16 I/O Module, Digital, 16 Outputs, Series CUsed condition, with normal signs of wear. Comes as shown, please check pics.

Allen-Bradley 1746-OA16 I/O Module, Digital, 16 Outputs, Series CUsed condition, with normal sign...

In Stock
$17.95
Add to cart
Parts Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC, 85mA Ser. C

Parts Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC, 85mA Ser. C Cracked Plastic Selling AS-IS Parts AS-IS Parts. Untested

Parts Allen-Bradley 1746-IA16 I/O Module, Digital, 16 Inputs, 85-132VAC, 85mA Ser. C Cracked Plas...

In Stock
$9.95
Add to cart
NEW Allen Bradley 1747-BA SER A Battery Assembly

NEW Allen Bradley 1747-BA SER A Battery Assembly NOS, surplus. Packaging has wear.

NEW Allen Bradley 1747-BA SER A Battery Assembly NOS, surplus. Packaging has wear.

In Stock
$43.95
Add to cart
Allen-Bradley 1746-N2 Card Slot Filler Series A

Allen-Bradley 1746-N2 Card Slot Filler Series A Used condition, with normal signs of wear. Comes as shown, please check pics.

Allen-Bradley 1746-N2 Card Slot Filler Series A Used condition, with normal signs of wear. Comes ...

In Stock
$9.95
Add to cart
Allen Bradley 1746-N2 Card Slot Filler Series A SLC 500 PLC Module

Allen Bradley 1746-N2 Card Slot Filler Series A SLC 500 PLC Module Used condition, with normal signs of wear. Comes as shown, please check pics.

Allen Bradley 1746-N2 Card Slot Filler Series A SLC 500 PLC Module Used condition, with normal si...

In Stock
$9.95
Add to cart
Allen Bradley 1746-IA16 Input Module SER. D

Allen Bradley 1746-IA16 Input Module SER. D Used condition, with normal signs of wear. Comes as shown, please check pics.

Allen Bradley 1746-IA16 Input Module SER. D Used condition, with normal signs of wear. Comes as s...

In Stock
$37.95
Add to cart

Reliable Industrial Solutions

Performance You Can Count On

We supply the critical automation, electrical, and MRO parts your facility relies on. Whether you need a rare legacy component or a cost-effective surplus replacement, we keep your operations online.

Learn About Us
Parts in Stock 200,000+
Warranty 60 Day
Shipping To 100+ Countries
On All Orders Free Shipping
Established 2017
Trusted By 50,000+
Handling Same Day Shipping
Part Numbers 60,000+
Have surplus or excess inventory to sell? Send us your parts list and we’ll make you an offer. We cover the shipping.