The Allen Bradley 1771-WD is a PLC-5 series detachable wiring arm module designed for the 1771 I/O platform. It provides a secure termination point for field wiring and allows quick installation or replacement of compatible PLC-5 I/O modules without disconnecting field-side connections.
Built for industrial reliability, the 1771-WD helps streamline cabinet wiring, improve maintenance efficiency, and reduce system downtime in critical automation environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Catalog Number | 1771-WD |
| Module Type | Detachable Wiring Arm |
| System Family | PLC-5 / 1771 I/O |
| Function | Field wiring termination interface |
| Compatible Modules | Selected 1771 digital and analog I/O modules |
| Terminal Type | Screw terminal connections |
| Wiring Configuration | Front-access field wiring |
| Connection Style | Swing-arm detachable interface |
| Mounting Method | Direct module attachment |
| Wire Support | Standard industrial control wiring |
| Serviceability | Supports module replacement without rewiring |
| Construction Material | Industrial molded thermoplastic |
| Backplane Interaction | Through connected I/O module |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Weight | ~0.16 kg |
| Dimensions (L×W×H) | 168 mm × 38 mm × 132 mm |
System Role Overview
The 1771-WD is designed to provide a reliable and maintainable field wiring connection system for PLC-5 I/O modules. It allows technicians to remove or replace modules while leaving field wiring intact.
Core functions include:
- Industrial field wire termination
- Fast I/O module replacement
- Organized control panel wiring
- Reduced maintenance and downtime
- Secure electrical connection stability
It is commonly installed in PLC-5 control cabinets where long-term maintainability is important.
Recommended Related Modules
| Model | Function |
|---|---|
| 1771-OBD | DC digital output module |
| 1771-OQ16 | High-density DC output module |
| 1771-IFE | Analog input module |
| 1771-OFE2 | Analog current output module |
| 1771-IAD | AC input module |
| 1771-A4B | 16-slot I/O chassis |
Popular Allen Bradley PLC-5 Modules
| Model | Function |
|---|---|
| 1785-L40B | PLC-5 processor |
| 1771-DMC | Data Highway communication module |
| 1771-SN | Remote I/O scanner module |
| 1771-ALX | Local I/O adapter module |
| 1771-P6S | PLC-5 power supply module |
