1771-WI | Allen Bradley PLC-5 8-Point Thermocouple Wiring Arm

Product Description

The Allen Bradley PLC-5 1771-WI Wiring Arm is designed for thermocouple applications, providing a secure and low-resistance interface for PLC-5 input modules. With 18 gold-plated terminals and conformal coating for environmental protection, it ensures reliable signal transmission and long-term durability. This wiring arm supports up to 8 I/O points and is rack-mount compatible, making it a dependable choice for temperature monitoring and precision input systems.

Technical Specifications

• Model / Part Number 1771-WI

• Manufacturer Allen Bradley (Rockwell Automation)

• Product Line PLC-5 Series

• Product Type Wiring Arm

• Weight 0.31 lbs (0.14 kg)

• Maximum I/O Supported 8 points

• Number of Terminals 18 terminals

• Contact Plating Gold for enhanced conductivity and corrosion resistance

• Screw Torque 7–9 lb·in

• Typical Application Thermocouple connections

• Coating Conformal coat for added durability

• External Power Requirement None

• Signal Delay

• AC Off: 29 ms ± 8 ms

• DC Off: 30 ms ± 7 ms

• Compatible Wiring Arm 1771-WN

• Mounting Rack mountable

Application Scenarios

• Thermocouple signal wiring in PLC-5 automation systems

• Industrial environments requiring corrosion-resistant and low-resistance connections

• Precision input systems needing reliable wiring arms with conformal coating

FAQ

Q: How many I/O points does the 1771-WI support?  A: It supports up to 8 I/O points.

Q: What type of terminals are included?  A: 18 gold-plated terminals for improved conductivity.

Q: Does the module require external power?  A: No, it operates without external power.

Q: What is the typical application of the 1771-WI?  A: It is primarily used for thermocouple connections.

Comparison with Similar Models

• 1771-WI: 8-point wiring arm, 18 terminals, thermocouple-specific design

• 1771-WG: 16-point wiring arm, 21 terminals, general-purpose use

• 1771-WH: Wiring arm designed for analog and digital modules