Legacy PLC & PAC Systems
Legacy PLC and PAC systems hardware supporting installed control platforms that have long passed the end of their active product life with the manufacturer. Source Allen-Bradley SLC 500, PLC 5 and early Logix processors, power supplies and racks, located and quoted within one business day.
Product family Discontinued PartsModels listed 110Availability Available to quote

Available Products
Quote an Unlisted ModelLegacy PLC & PAC Systems Product Directory
Products below are read from WooCommerce. Select a product to view its current details and inquiry options.
| Catalog Number | Series / Type | Description | Price & Availability | Product Page |
|---|---|---|---|---|
| 1746-IV32 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-IV32 is a Slc 32 Point Digital Input Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 32. | $380.37Available to quote | View product → |
| 1746-N2 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-N2 is a Slc Modular Card Slot Filler from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. | $18.38Available to quote | View product → |
| 1746-NI16I | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NI16I is a Slc 16 Point Analog Input Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 16. | $1,069.18Available to quote | View product → |
| 1746-NI4 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NI4 is a Slc 4 Point Analog Input Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 4. | $719.35Available to quote | View product → |
| 1746-NI8 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NI8 is a Slc 8 Point Analog Input Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 8. | $724.28Available to quote | View product → |
| 1746-NIO4I | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NIO4I is a Slc 4 Point Analog Current Combination Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 4. | $980.49Available to quote | View product → |
| 1746-NIO4V | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NIO4V is a Slc 4 Point Analog Voltage Combination Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 4. | $1,014.98Available to quote | View product → |
| 1746-NO4I | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NO4I is a Slc 4 Point Analog Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 4. | $941.07Available to quote | View product → |
| 1746-NO8I | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NO8I is a Slc 8 Point 20Ma Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 8. | $1,212.06Available to quote | View product → |
| 1746-NO8V | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NO8V is a Slc 8 Point Analog Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 8. | $1,345.09Available to quote | View product → |
| 1746-NR8 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NR8 is a Slc 8 Point Resistance Input Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 8. | $1,404.22Available to quote | View product → |
| 1746-NT8 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-NT8 is a Slc 8 Point Digital Input Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 8. | $1,226.84Available to quote | View product → |
| 1746-OA16 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-OA16 is a Slc 16 Point Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 16. | $321.25Available to quote | View product → |
| 1746-OA8 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-OA8 is a Slc 8 Point Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 8. | $270.50Available to quote | View product → |
| 1746-OB16 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-OB16 is a Slc 16 Point DC Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 16. | $222.21Available to quote | View product → |
| 1746-OB16E | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-OB16E is a Slc 16 Point Protected Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 16. | $297.10Available to quote | View product → |
| 1746-OB32 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-OB32 is a Slc 32 Point Digital Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 32. | $417.82Available to quote | View product → |
| 1746-OB32E | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-OB32E is a Slc 32 Point Digital Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 32. | $490.24Available to quote | View product → |
| 1746-OBP8 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-OBP8 is a Slc 8 Point Digital Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 8. | $268.03Available to quote | View product → |
| 1746-OV16 | Legacy PLC & PAC SystemsProduct model | The Allen-Bradley 1746-OV16 is a Slc 16 Point Digital Output Module from the SLC 500 / PLC-5 Legacy Processor family, designed to support programmable controllers that remain in service on legacy production lines. Rated 16. | $261.63Available to quote | View product → |
About the Legacy PLC & PAC Systems Family
Legacy PLC and PAC systems hardware supporting installed control platforms that have long passed the end of their active product life with the manufacturer. Source Allen-Bradley SLC 500, PLC 5 and early Logix processors, power supplies and racks, located and quoted within one business day.
- Confirm the complete catalog number
- Record hardware series and revision
- Check compatibility requirements
- Request availability and delivery options
