1756-OB8I: Isolated DC Output Module
The 1756-OB8I is the Isolated DC Output Module covered on this page. The attribute that decides whether it fits the existing installation without modification is 12-24 Volts DC.
What separates this variant from its siblings is isolated dc output module. A processor or controller is selected on memory, scan time and platform compatibility before anything else. isolated dc output module sets how much programme fits, how fast the logic executes and which I/O and networks the unit can host — the three things that decide whether an existing application migrates without a rewrite. Confirming 12-24 Volts DC against the installed controller family is the check that prevents a processor that boots but cannot run the existing project.
| Feature | Specification |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1756-OB8I |
| Part Number | 1756-OB8I |
| Series | ControlLogix |
| Module Type | Isolated DC Output Module |
| Outputs | 8 Individually Isolated |
| Voltage | 12-24 Volts DC |
| Operating Voltage Range | 10-30 Volts DC |
| Current Draw (5.1V) | 165 mA |
| Current Draw (24V) | 2 mA |
| Power Dissipation (Max) | 4.6 W |
| Thermal Dissipation | 15.7 BTU-hr |
| Backplane Power | 0.89 W |
| Isolation Voltage | 50 V Continuous |
| Enclosure | None. |
Related Configurations
Other published configurations in the same family — confirm the distinguishing specification against your installation:
| Related Part Number | Configuration Difference |
|---|---|
| allen-bradley-1756-ob8-controllogix-24vdc-8-channel-digital-output-module | confirm the configuration against your installation |
| allen-bradley-1756-ob8ei-controllogix-fused-isolated-output-module | confirm the configuration against your installation |
Availability & Condition at AutoDCSTech
| Part Number | 1756-OB8I |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
