Allen Bradley 1756-IH16I Digital Isolated Input Module
Allen Bradley 1756-IH16I Digital Isolated Input Module
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Brand:Allen Bradley PLC Item No.:Allen Bradley 1756-IH16I Product Origin:USA Product Dimensions:300 × 38.1 × 111.25 mm Product Weight:0.20 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen Bradley 1756-IH16I is a robust industrial-grade digital isolated input module developed for high-voltage DC applications within ControlLogix automation platforms. Designed for dependable signal acquisition and long-term operational stability, this module delivers exceptional isolation performance for demanding manufacturing and process environments.
With 16 individually isolated input points, the 1756-IH16I enhances system reliability by reducing electrical interference and improving signal integrity across critical automation processes. Its advanced architecture supports precise monitoring of field devices while helping engineers maintain flexible and scalable control systems.
Built for modern industrial operations, this module is widely selected for applications requiring consistent high-voltage DC input handling and seamless integration into ControlLogix infrastructures.
Detailed Technical Specifications
Specification Item
Technical Details
Manufacturer
Allen Bradley
Product Series
ControlLogix
Model Number
1756-IH16I
Module Type
Digital Isolated Input Module
Number of Inputs
16 Individually Isolated Inputs
Input Voltage
125V DC Sink/Source
Operating Voltage Range
90–146V DC
Isolation Voltage
250V Continuous
Input Delay Time
6 ms + Selectable Filter Time
Backplane Current @ 5V
125 mA
Backplane Current @ 24V
3 mA
Maximum Power Dissipation
5 W
Wiring Connection
36-Pin Removable Terminal Block
Compatible RTB
1756-TBCH / 1756-TBS6H
Operating Temperature
0°C to 60°C
Storage Temperature
-40°C to 85°C
Mounting Style
Chassis Mounted
Dimensions
300 × 38.1 × 111.25 mm
Approximate Weight
0.20 kg
Compatibility
ControlLogix Chassis Systems
Suggested Companion Modules
For improved automation flexibility and optimized system configuration, the following Allen Bradley modules are commonly paired with the 1756-IH16I.
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Industrial Application Scenarios
The 1756-IH16I is engineered for industrial facilities that require reliable high-voltage DC signal monitoring under continuous operating conditions.
Typical applications include:
Process automation systems
Oil and gas production facilities
Power generation plants
Heavy manufacturing environments
Conveyor and material handling systems
Chemical processing operations
Water treatment automation
Factory safety and monitoring systems
Its isolated channel architecture helps minimize electrical noise interference, making it highly effective in electrically demanding industrial environments.
Performance Advantages
Individually Isolated Inputs
Each channel features dedicated isolation, helping protect the control system from electrical disturbances and improving operational reliability.
Designed for High-Voltage DC Applications
The module efficiently handles 125V DC input signals, making it ideal for specialized industrial control systems.
Strong System Compatibility
The 1756-IH16I integrates seamlessly with existing ControlLogix architectures, supporting flexible system expansion and simplified engineering.
Industrial Durability
Built with rugged industrial standards, the module delivers stable long-term performance in harsh production environments.
Maintenance-Friendly Design
Its modular construction and clear diagnostics assist maintenance teams in reducing troubleshooting time and minimizing production downtime.
Technical FAQs
1. What is the main purpose of the 1756-IH16I module?
It is used for monitoring high-voltage DC digital input signals within ControlLogix automation systems.
2. How many input channels are available?
The module provides 16 individually isolated digital input channels.
3. What voltage range does the module support?
It operates within a voltage range of 90 to 146V DC.
4. Is the 1756-IH16I suitable for industrial environments?
Yes, it is specifically designed for demanding industrial automation applications.
5. What type of isolation does this module provide?
The module offers continuous 250V isolation between input channels and the backplane.
6. Which terminal blocks are compatible with this module?
The compatible removable terminal blocks include the 1756-TBCH and 1756-TBS6H.
7. Can the module be integrated into existing ControlLogix systems?
Yes, it is fully compatible with standard ControlLogix chassis configurations.
8. What industries commonly use the 1756-IH16I?
Industries such as energy, manufacturing, utilities, water treatment, and process automation frequently deploy this module.
9. What is the approximate module weight?
The module weighs approximately 0.20 kg.
10. Why do engineers prefer the 1756-IH16I?
Its isolated input architecture, high-voltage DC support, and dependable ControlLogix compatibility make it a reliable solution for advanced industrial automation systems.
