Description
Allen-Bradley 1785-L40B/E
Allen-Bradley 1785-L40B/E PLC-5/40 Enhanced processor delivers reliable control for legacy Allen-Bradley PLC-5 automation systems requiring DH+ communication and proven industrial performance.
| Brand | Allen-Bradley |
| Model | 1785-L40B/E |
| Voltage | 5V DC (backplane) |
| Country of Origin | USA |
| Weight | 0.45 kg |
| Dimensions | 122 x 305 x 152 mm |
| Warranty | 6 months |
| Certifications | CE, UL, CSA |
| SKU / MPN | 1785-L40B/E |
| What’s in the box | PLC-5/40E processor module, documentation |
| Processor Type | PLC-5/40 Enhanced |
| User Memory | 16K Words |
| Communication | DH+ (Data Highway Plus) |
| I/O Chassis | 1771 I/O |
| Programming Software | RSLogix 5 |
| Series | Enhanced (E) |
Key benefits: 16K word user memory for complex logic, integrated DH+ network communication, 1771 I/O chassis compatibility, Enhanced series advanced instruction set, robust industrial-grade design, backward compatibility with existing PLC-5 installations
Typical applications: Legacy factory automation systems, discrete manufacturing control, material handling and conveyor systems, automotive assembly lines, process control retrofits, replacement of obsolete PLC-5 processors, industrial system migration projects
Lifecycle: Mature/Legacy product, limited new availability, supported through Rockwell Automation legacy programs and migration services
Our Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don't worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitive pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
Run Business
Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.







Mark O. –
The stepper motor is smooth and quiet. Will use this supplier again.