The Allen-Bradley 1756-IH16I is a ControlLogix DC isolated input module designed for industrial automation environments. It features 16 individually isolated input points, allowing flexible field-side signal connections in complex control systems. Operating within a 125V DC voltage category (79 to 138V DC operating voltage range), this module provides reliable signal processing while maintaining high electrical isolation between individual input channels and backplane circuitry. Mounted in a standard ControlLogix chassis, it integrates with ControlLogix controllers using Producer-Consumer technology to share input status efficiently across network architectures.
| Attribute | Specification |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Family | ControlLogix |
| Inputs | 16 individually isolated |
| Voltage Category | 125V DC sink/source |
| Operating Voltage Range | 79...138V DC |
| Input Voltage, Nom | 125V DC |
| Off-State Voltage, Max | 20V DC |
| Off-State Current, Max | 2.5 mA |
| On-State Current, Min | 1.8 mA @ 79V DC |
| On-State Current, Max | 3.6 mA @ 138V DC |
| Inrush Current, Max | 250 mA |
| Input Impedance, Max | 43.5 kOhm @ 138V DC |
| Input Delay Time (OFF to ON) | Hardware delay: 1 ms max + filter time (User-selectable: 0, 1, or 2 ms) |
| Input Delay Time (ON to OFF) | Hardware delay: 4 ms max + filter time (User-selectable: 0, 1, 2, 9, or 18 ms) |
| Current Draw @ 5.1V | 100 mA |
| Current Draw @ 24V | 3 mA |
| Total Backplane Power | 0.58 W |
| Power Dissipation, Max | 4.6 W @ 60 degC (140 degF) |
| Thermal Dissipation | 15.69 BTU/hr |
| Cyclic Update Time | 200 us...750 ms |
| Timestamp of Inputs | +-200 us |
| Isolation Voltage | 250V (continuous), basic insulation type, inputs-to-backplane, and input-to-input; Routine tested @ 1350V AC for 2 s |
| Slot Width | 1 |
| Module Keying | Electronic, software configurable |
| Removable Terminal Block Housing | 1756-TBCH, 1756-TBS6H |
| Wire Category | 1 |
| North American Temperature Code | T4A |
| Operating Temperature | 0...60 degC (32...140 degF) |
| Storage Temperature | -40...85 degC (-40...185 degF) |
| Relative Humidity | 5...95% noncondensing |
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Returns & Warranty
Manufacturer: Allen-Bradley
Product No.: 1756-IH16I
Country of origin:United States,Japan
Product Type: Digital Input Modules
Payment: T/T, Western Union
Weight: 350g
Dimensions: 145 mm x 35 mm x 135 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months
The Allen-Bradley 1756-IH16I is a ControlLogix DC isolated input module designed for industrial automation environments. It features 16 individually isolated input points, allowing flexible field-side signal connections in complex control systems. Operating within a 125V DC voltage category (79 to 138V DC operating voltage range), this module provides reliable signal processing while maintaining high electrical isolation between individual input channels and backplane circuitry. Mounted in a standard ControlLogix chassis, it integrates with ControlLogix controllers using Producer-Consumer technology to share input status efficiently across network architectures.
| Attribute | Specification |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Family | ControlLogix |
| Inputs | 16 individually isolated |
| Voltage Category | 125V DC sink/source |
| Operating Voltage Range | 79...138V DC |
| Input Voltage, Nom | 125V DC |
| Off-State Voltage, Max | 20V DC |
| Off-State Current, Max | 2.5 mA |
| On-State Current, Min | 1.8 mA @ 79V DC |
| On-State Current, Max | 3.6 mA @ 138V DC |
| Inrush Current, Max | 250 mA |
| Input Impedance, Max | 43.5 kOhm @ 138V DC |
| Input Delay Time (OFF to ON) | Hardware delay: 1 ms max + filter time (User-selectable: 0, 1, or 2 ms) |
| Input Delay Time (ON to OFF) | Hardware delay: 4 ms max + filter time (User-selectable: 0, 1, 2, 9, or 18 ms) |
| Current Draw @ 5.1V | 100 mA |
| Current Draw @ 24V | 3 mA |
| Total Backplane Power | 0.58 W |
| Power Dissipation, Max | 4.6 W @ 60 degC (140 degF) |
| Thermal Dissipation | 15.69 BTU/hr |
| Cyclic Update Time | 200 us...750 ms |
| Timestamp of Inputs | +-200 us |
| Isolation Voltage | 250V (continuous), basic insulation type, inputs-to-backplane, and input-to-input; Routine tested @ 1350V AC for 2 s |
| Slot Width | 1 |
| Module Keying | Electronic, software configurable |
| Removable Terminal Block Housing | 1756-TBCH, 1756-TBS6H |
| Wire Category | 1 |
| North American Temperature Code | T4A |
| Operating Temperature | 0...60 degC (32...140 degF) |
| Storage Temperature | -40...85 degC (-40...185 degF) |
| Relative Humidity | 5...95% noncondensing |
| Product Image | Model Number / Title | Condition | Availability | Action |
|---|---|---|---|---|
|
Allen-Bradley 1756-L75 ControlLogix 5570 Controller | Original New | In Stock | View Details |
|
Allen-Bradley 1756-L81E ControlLogix 5580 Programmable Automation Controller | Original New | In Stock | View Details |
|
Allen-Bradley 1747-L553 SLC 5/05 Controller 64K Memory | Original New | In Stock | View Details |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
Japan
|
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