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Allen-Bradley 1771-OB PLC-5 Digital Output Module

Allen-Bradley 1771-OB PLC-5 Digital Output Module

  • 16 Em stock
  • Manufacturer: Allen-Bradley

  • Product No.: 1771-OB

  • Condition: Em stock

  • Product Type: PLC-5 Digital Output Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 980g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Descrição

Overview

The Allen-Bradley 1771-OB is an 8-channel digital DC output module designed for PLC-5 control systems. It provides discrete output switching for field devices such as solenoids, relays, indicators, and actuators in industrial automation environments.

Engineered for rack-based PLC architecture, the module delivers stable switching performance with built-in protection features and supports high-current load applications across distributed control systems.

Key Features

  • 8 independent digital DC output channels

  • Source-type output configuration

  • Designed for PLC-5 1771 series chassis integration

  • High current switching capability for industrial loads

  • Conformal coated electronics for improved environmental resistance

  • Rack-mounted installation with dedicated wiring arm support

  • Fast switching response for real-time control applications

  • Suitable for both machine-level and process-level automation

Technical Specifications

Specification Details
Brand Allen-Bradley
Model 1771-OB
Product Type Digital DC Output Module
Product Series PLC-5
Number of Outputs 8 Channels
Output Type DC Source Output
Operating Voltage Range 10–27 V DC
Voltage Category 10–60 V DC (System Rated)
Backplane Current 165 mA
Max Current per Output 1.5 A
Max Total Module Current 8 A
Power Dissipation 16.9 W
Thermal Dissipation 57.6 BTU/hr
Signal Turn-Off Delay (DC) ~50 ms
Signal Turn-Off Delay (AC equivalent) ~45 ±15 ms
Data Format BDC / Natural Binary
Wiring Interface 1771-WH Wiring Arm
Mounting Type Rack Mount
Environmental Protection Conformal Coated
Operating Temperature 0°C to 60°C
Storage Temperature -40°C to 85°C
Humidity Range 5–95% Non-Condensing
Weight 2.16 lbs

Application Areas

The 1771-OB output module is commonly applied in:

  • Industrial machine control systems

  • Conveyor and material handling equipment

  • Process automation output control

  • Solenoid and actuator switching circuits

  • Packaging machinery systems

  • Factory production line control

  • Relay interface applications

Compatibility Notes

The module is designed for integration within Allen-Bradley PLC-5 1771 chassis systems and requires a compatible rack-mounted backplane architecture. It operates alongside PLC processors, I/O adapters, and power supply modules within the same system.

FAQ

How many outputs does the 1771-OB provide?

It includes 8 discrete DC output channels.

What type of loads can it control?

It is suitable for resistive and inductive loads such as relays, solenoids, and indicators within rated current limits.

Is the module protected against environmental conditions?

Yes. The module is conformal coated for improved resistance to industrial environments.

Does it require a wiring arm?

Yes. The 1771-WH wiring arm is used for field wiring connections.

Características

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Destaques

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