Allen-Bradley 1762-IR4

Allen-Bradley 1762-IR4 | 4-Channel RTD Analog Input Module for Temperature Sensing in MicroLogix PLCs

Overview

The Allen-Bradley 1762-IR4 is a 4-channel RTD input module designed for precise temperature monitoring in MicroLogix 1100, 1200, and 1400 PLC systems. Supporting a range of RTD sensor types, this module offers 16-bit resolution and delivers accurate, reliable analog input data for process control and automation systems.

Key Features

• 4 RTD Input Channels – Designed for temperature monitoring using RTD sensors

• Supports Multiple RTD Types – PT100, PT1000, Ni100, Ni1000 (2- or 3-wire)

• High Resolution (16-bit) – Delivers precise analog temperature readings

• Open-Circuit Detection – Improves diagnostic accuracy

• Cold Junction Compensation (CJC) – Built-in for accurate measurement

• Compact Form Factor – Fits into space-constrained control panels

• Removable Terminal Block – Eases installation and maintenance

Technical Specifications

• Catalog Number: 1762-IR4

• Number of Channels: 4 RTD inputs

• Input Type: RTD (2-wire or 3-wire)

• Supported Sensors: PT100, PT1000, Ni100, Ni1000

• Resolution: 16-bit

• Accuracy: ±0.5% full scale

• Input Range: -200°C to +850°C (varies by RTD type)

• Backplane Current Draw: 125 mA @ 5V DC

• Isolation Voltage: 30V continuous (channel-to-system)

• Operating Temperature: 0°C to +55°C (32°F to 131°F)

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

• Relative Humidity: 5% to 95% non-condensing

• Certifications: UL, CE, CSA, C-Tick

Applications

• Industrial Temperature Monitoring

• HVAC and Building Automation

• Process and Batch Control Systems

• OEM Machine Temperature Feedback

• Food, Beverage, and Pharmaceutical Manufacturing

Why Choose the 1762-IR4?

• Precision Temperature Measurement – Supports multiple RTD types with high resolution

• Reliable and Accurate – Built for critical industrial control systems

• Compact Expansion – Integrates seamlessly into MicroLogix PLCs

• Easy Maintenance – Removable terminal block and diagnostics simplify service

• Ideal for Harsh Environments – Robust and proven in industrial applications

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Available and ready to ship worldwide.