Overview
The Allen Bradley 1756-IH16I is a ControlLogix DC isolated input module designed for industrial automation systems that require reliable high-voltage signal monitoring. Featuring 16 individually isolated input channels, the module delivers accurate signal acquisition, excellent electrical noise immunity, and dependable operation in demanding industrial environments. It integrates directly into a ControlLogix chassis through the backplane architecture.
General Information
Part Number: 1756-IH16I
Manufacturer: Allen Bradley
Brand: Allen-Bradley
Country of Origin: United States
Series: ControlLogix
Type: DC Isolated Input Module
Module Category: Digital Input Module
Number of Channels: 16 Individually Isolated Inputs
Nominal Input Voltage: 125 V DC
Input Voltage Range: 90–146 V DC
Mounting: ControlLogix Chassis Installation
Terminal Block Compatibility: 1756-TBCH, 1756-TBS6H
Power Specifications
Input Voltage: 90–146 V DC
Nominal Voltage: 125 V DC
Backplane Current Draw (5.1 V DC): Approx. 125 mA
Backplane Current Draw (24 V DC): Approx. 3 mA
Power Dissipation: Up to 5 W
Isolation Voltage: 250 V Continuous
Power Source: ControlLogix Backplane
Status Indicators: Channel Status and Diagnostic LEDs
Communication & Interface
Input Type: DC Digital Input
Input Channels: 16
Channel Isolation: Individual Isolation Per Channel
Connection Method: Removable Terminal Block
Communication Path: ControlLogix Backplane
Diagnostics: Input Status Monitoring
System Compatibility: ControlLogix Controllers and Chassis
Signal Processing: High-Speed Input Detection and Filtering
Environmental
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Relative Humidity: 5% to 95% RH, Non-Condensing
Shock Resistance: Industrial Grade
Vibration Resistance: Suitable for Industrial Environments
Protection Rating: Open-Type Equipment for Enclosed Installations
Dimensions & Weight
Dimensions (H × W × D): 144.57 × 22 × 105.42 mm
Weight: 0.181 kg
Ready to Ship.