Allen-Bradley 1771-WF Field Wiring Arm

Product Overview

The Allen-Bradley 1771-WF is a field wiring arm designed for use with PLC-5 series I/O modules. It facilitates quick and secure electrical connections between field devices and the control system, allowing module replacement without disconnecting wiring. This component is essential for maintaining signal integrity and simplifying maintenance in industrial automation environments.

Technical Specifications

• Model: 1771-WF

• Function: Field wiring arm for PLC-5 I/O modules

• Terminal Count: 18 terminals with gold-plated contacts

• I/O Support: Up to 8 I/O connection points

• Dimensions:

• Width: 114.3 mm (4.5 in)

• Height: 314.9 mm (12.4 in)

• Depth: 160 mm (6.3 in)

• Weight: Approx. 100 grams (0.2 lbs)

• Material: Thermoplastic shell with industrial conformal coating

• Screw Torque: 7–9 lb-in

• Voltage Delay:

• AC: 29 ms

• DC: 30 ms

• Environmental Ratings:

• Operating Temperature: 0°C to 60°C (32°F to 140°F)

• Storage Temperature: -40°C to 85°C (-40°F to 185°F)

• Humidity: 5% to 95% non-condensing

• System Compatibility:

• PLC-5, PLC-3, PLC-2 controllers

• 1771-AxB chassis series (e.g., A1B, A2B, A3B, A4B)

• Keying Positions: Specific pin configurations (e.g., pins 10–12 or 28–30) to ensure correct module matching