Allen-Bradley 1771-OBD

Allen-Bradley 1771-OBD

Overview

The Allen-Bradley 1771-OBD is a 16-point DC digital output module designed for use in the PLC-5 1771 I/O system. It provides sourcing-type outputs for control of field devices such as solenoids, contactors, and indicator lamps. Operating within a 10–60V DC output voltage range, this module ensures efficient and reliable control in industrial automation systems.

Key Features

• Module Type: Digital DC Output

• Output Type: Sourcing (positive logic)

• Output Points: 16 individually controlled outputs

• Voltage Range: 10–60V DC

• Backplane Current Draw: Approx. 210 mA

• Mounting: 1771 chassis

• Connection Type: Field wiring arm (sold separately, e.g., 1771-WH)

Technical Specifications

• Catalog Number: 1771-OBD

• Series: 1771 I/O for PLC-5

• Maximum Output Current: 0.5 A per point, 4 A per module

• Isolation Voltage: 1500V RMS

• Response Time: <1 ms

• Operating Temp Range: 0°C to +60°C

• Storage Temp Range: -40°C to +85°C

• Certifications: UL, CSA, CE

• Compatible PLCs: PLC-5 and 1771 Universal I/O chassis

Applications

• Discrete control of actuators and lamps

• Machine control and packaging systems

• Manufacturing line automation

• PLC-5 installations requiring sourcing output expansion

Why Choose the 1771-OBD

• Proven Allen-Bradley reliability for legacy PLC-5 systems

• High-speed output switching with wide voltage support

• Simple installation in 1771 chassis with modular design

• Ideal for sourcing-based digital control applications

Order Now

The Allen-Bradley 1771-OBD DC output module is available and ships worldwide.