Allen-Bradley 1756-IH16I | ControlLogix Isolated Input Module, 90-146V DC

Overview

The Allen-Bradley 1756-IH16I is a high-voltage digital input module designed for ControlLogix systems, offering 16 individually isolated inputs for flexible signal processing. With an operating voltage range of 90-146V DC, this module supports both sink and source configurations, ensuring versatility and reliability in industrial automation applications.

Its individual isolation per input enhances signal integrity, minimizes interference, and improves system safety, making it ideal for high-voltage industrial control environments.

Key Features

• 16 Individually Isolated Inputs – Provides maximum flexibility and protection
• Voltage Category: 125V DC Sink/Source – Supports varied industrial applications
• Operating Voltage Range: 90-146V DC – Ensures stable and reliable input processing
• Nominal Input Voltage: 125V DC – Optimized for high-voltage control systems
• Off-State Voltage, Max: 20V DC – Reduces false triggering
• On-State Current Range:
  • Min: 1mA @ 90V DC
  • Max: 3mA @ 146V DC
• Current Draw:
  • @ 5.1V: 125mA
  • @ 24V: 3mA
• Power Dissipation, Max: 5W @ 60°C (140°F)
• Inrush Current, Max: 250mA

Technical Specifications

• Model: 1756-IH16I
• Series: ControlLogix
• Input Type: Digital Isolated Input
• Number of Inputs: 16 Individually Isolated Channels
• Voltage Range: 90-146V DC
• Nominal Voltage: 125V DC
• Sink/Source Configuration: Both Supported
• Connector Type: ControlLogix Backplane
• Mounting: ControlLogix Chassis
• Operating Temperature: -25°C to 60°C (-13°F to 140°F)

Applications

• High-Voltage Industrial Control Systems – Supports secure signal input processing
• Power Plants & Utility Control – Ideal for 125V DC monitoring and control
• Manufacturing & Automation Processes – Provides accurate high-voltage signal detection
• Material Handling & Logistics Systems – Ensures reliable input isolation
• Critical Infrastructure Monitoring – Enhances safety and stability in control applications

Why Choose the Allen-Bradley 1756-IH16I?

• 16 Individually Isolated Inputs – Eliminates signal interference and crosstalk
• Supports Both Sink & Source Configurations – Ensures versatile installation options
• High-Voltage Input Range (90-146V DC) – Optimized for industrial power control
• Reliable Power Efficiency – Low power dissipation with stable performance
• Seamless Integration with ControlLogix PLCs – Designed for efficient automation systems

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