Allen-Bradley | 1771-WB PLC-5 12-Point Field Wiring Arm

Product Overview

The 1771-WB is a 12-point field wiring arm designed for the Allen-Bradley PLC-5 system, providing a dependable interface between I/O modules and field wiring. This component ensures secure electrical connections and simplified maintenance, making it essential for analog signal applications. Constructed with gold-plated contacts and a conformal coating, the 1771-WB delivers excellent conductivity and protection in industrial environments.

Key Features

• Brand: Allen-Bradley

• Model: 1771-WB

• Product Type: Field Wiring Arm

• Series: PLC-5

• Number of I/O Channels: Supports up to 8 I/O connections

• Number of Terminals: 12 terminals

• Contact Plating: Gold for improved conductivity and corrosion resistance

• Screw Torque: 7–9 lb·in for secure wiring

• Typical Application: Analog signal interfacing

• Voltage Compatibility: 24–220 V AC/DC (typical for analog field signals)

• External Power Requirement: None

• Typical AC Signal Delay (Off): 29 ±8 ms

• Typical DC Signal Delay (Off): 30 ±7 ms

• Coating: Conformal coating for environmental protection

• Compatible Accessory: 1771-WN wiring arm

• Weight: 0.09 kg (0.19 lbs)

Application Scenarios

The 1771-WB is suitable for:

• Analog signal applications: Providing reliable terminal connections between analog I/O modules and field devices

• PLC-5 automation systems: Simplifying wiring for process control and instrumentation

• Maintenance and troubleshooting: Allowing quick disconnection and reconnection of wiring during servicing

• Panel installations: Ensuring durable and organized cable management in control cabinets

Performance and Design

• High Conductivity: Gold-plated contacts maintain low resistance and high signal integrity

• Durable Construction: Conformal coating provides moisture and dust resistance for long service life

• Ease of Use: Detachable design simplifies module replacement and wiring maintenance

Compatibility

• System Integration: Compatible with Allen-Bradley PLC-5 and 1771-series I/O modules

• Wiring Accessories: Designed for use with 1771-WN or related wiring arms

• Installation Environment: Suitable for analog signal systems operating in standard industrial conditions

FAQs

Q: What type of signals can the 1771-WB handle?
A: It is primarily designed for analog signal applications within 24–220 V AC/DC ranges.

Q: How many terminals does this wiring arm include?
A: The 1771-WB provides 12 terminals for flexible field wiring connections.

Q: Does the 1771-WB require external power?
A: No, it operates passively without any external power source.

Q: What is the benefit of gold contact plating?
A: Gold plating enhances electrical conductivity, minimizes signal loss, and prevents corrosion.

Q: Which modules are compatible with the 1771-WB?
A: It is compatible with analog I/O modules from the Allen-Bradley PLC-5 series that use a 12-point terminal interface.