Allen-Bradley 1785-L20B PLC-5/20 Processor (Series E)

Allen-Bradley 1785-L20B PLC-5/20 Processor (Series E)

Price range: $402.69 through $4,625.82

The Allen-Bradley 1785-L20B is a PLC-5/20 processor with 16K words of memory and configurable DH+ / Remote I/O ports. It is built for the Allen-Bradley PLC-5 system. Key ratings: 16K Words Memory, DH+ / Remote I/O Ports. TCI offers the 1785-L20B in New, Surplus and Used condition, ready to replace a failed unit or expand an existing system.

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$402.69
$2,625.39
$4,625.82
SKU: 1785-L20B Category: Brand:

Description

  • Part Number: 1785-L20B
  • Manufacturer: Allen-Bradley
  • Type: PLC-5/20 Processor
  • Series: PLC-5 1785 Series
  • Application: Machine & Process Control
  • Size // Rating: 16K Words Memory, DH+ / Remote I/O Ports
  • Connection Type: DH+ / Remote I/O Ports / 1771 Chassis Backplane
  • Compatibility: Allen-Bradley PLC-5 System

TCI is not an authorized Allen-Bradley distributor.

Warranty Coverage

This product is backed by a TCI Supply 1 year Warranty.

Industrial Repair Services

Need your existing hardware restored? We offer professional diagnostic, refurbishment, and repair services for 1785-L20B. Contact our team for a quote.

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Description

The Allen-Bradley 1785-L20B is a PLC-5/20 processor with 16K words of memory and configurable DH+ / Remote I/O ports. The controller runs the control program, reading inputs, executing logic and updating outputs for the machine or process. The PLC-5 is Allen-Bradley's legacy large-scale processor family, installed in a 1771 chassis. Many plants still run PLC-5 systems, so replacement processors and communication modules remain in demand. The 1785-L20B is typically used for machine & process control.

Key ratings for the 1785-L20B: 16K Words Memory, DH+ / Remote I/O Ports. It connects through DH+ / remote I/O ports / 1771 chassis backplane and is compatible with the Allen-Bradley PLC-5 system. Because it matches the original catalog number, it can be dropped into an existing PLC-5 installation as a direct replacement, or added to expand the system. TCI stocks the 1785-L20B in New, Surplus and Used condition, and each condition is priced separately. Select a condition above to see its price, or contact TCI for help confirming the right part for your application.

Frequently Asked Questions

What is the Allen-Bradley 1785-L20B used for?

The 1785-L20B is a PLC-5/20 processor with 16K words of memory and configurable DH+ / Remote I/O ports. It is typically used for machine & process control.

What systems is the 1785-L20B compatible with?

The 1785-L20B is designed for the Allen-Bradley PLC-5 system. It connects through DH+ / remote I/O ports / 1771 chassis backplane.

What are the key specifications of the 1785-L20B?

Key ratings for the 1785-L20B: 16K Words Memory, DH+ / Remote I/O Ports. Always confirm the specifications against your existing hardware before installation.

What conditions is the 1785-L20B available in?

TCI offers the 1785-L20B in New, Surplus and Used condition. Each condition is priced separately; choose one from the Condition menu to see its price.

Is TCI an authorized Allen-Bradley distributor?

No. TCI is not an authorized Allen-Bradley distributor. TCI supplies the 1785-L20B as an independent source of new, surplus and used automation parts.

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