Overview
The Allen-Bradley 1771-WG is a field wiring arm that provides a central termination point for Allen-Bradley 1771 I/O systems used in PLC-5 legacy automation platforms. With 21 gold-plated screw terminals and hinged swing arm design, the 1771-WG delivers secure, organized wire management for connecting field devices to 1771-series I/O modules. This component is essential for technicians maintaining or expanding existing PLC-5 control systems.
Key Features
- 16-point input/output configuration with 21 total terminal points
- Gold-plated screw terminals ensure reliable electrical connections
- Swing arm design for convenient access during installation and maintenance
- Compatible with 1771 chassis and I/O module systems
- Buchanan-branded terminal strip construction
- Hinged terminal cover option for wire protection
Technical Specifications
- Model: 1771-WG
- Terminal Type: Screw clamp
- Contact Finish: Gold plated
- Total Terminals: 21
- I/O Points: 16
- Compatible System: Allen-Bradley 1771 PLC-5
- Design: Swing arm / hinged wiring arm
- Mounting: Field wiring panel
- Certifications: UL listed (industrial control)
Typical Applications
- PLC-5 system field wiring termination
- Legacy industrial automation control panels
- Input/output signal consolidation
- Factory floor machine control systems
- Process automation retrofit and maintenance
- OEM control cabinet assembly
Compatibility & Replacements
Compatible With
- Allen-Bradley 1771-series I/O modules (1771-IA, 1771-OB, 1771-IF, etc.)
- Allen-Bradley PLC-5 controllers
- 1771-A1B, 1771-A2B, 1771-A3B chassis systems
- Legacy industrial automation control systems
- Field wiring termination in 1771 I/O racks
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 1771-WG is a specific wiring accessory designed for 1771 systems; OEM specifications should be reviewed to confirm direct replacement capability in your application.
Works With
- Allen-Bradley 1771 I/O modules and chassis
- PLC-5 programming and maintenance software
- Studio 5000 Logix Designer (for modern supervision of legacy systems)
- Legacy control systems using screw terminal field wiring
- Standard industrial electrical termination practices














