Description
Product Name : 1734-OB8C Allen‑Bradley Programmable controller
Product details:
The Allen-Bradley 1734-OB8C is a POINT I/O 8-channel digital output module featuring electronically protected, sourcing outputs. It is a key component of the Rockwell Automation POINT I/O system, designed to provide a compact, modular, and highly scalable solution for distributed industrial automation.
The “C” suffix denotes that this specific module comes with Conformal Coating, providing enhanced resistance against harsh environmental factors such as moisture, dust, salt spray, and chemical contaminants.
Technical Product Parameters
| Parameter | Specification |
| Module Type | Digital Output Module (Sourcing) |
| Number of Outputs | 8 channels (non-isolated) |
| Output Voltage Range | 10V DC to 28.8V DC |
| ON-State Voltage Range | 10–28.8V DC |
| Output Current Rating | 1.0 A per module maximum; 0.5 A per channel maximum |
| Leakage Current | 0.5 mA maximum |
| Surge Current | 1.2 A for 10 ms, repeatable every 3 seconds |
| Protection Type | Short-circuit and overcurrent electronic protection |
| POINTBus Current | 75 mA max @ 5V DC |
| Power Dissipation | 1.2 W max @ 28.8V DC |
| Thermal Dissipation | 4.1 BTU/hr max @ 28.8V DC |
| Conformal Coating | Yes |
| Compatible Terminal Base | 1734-TB or 1734-TBS |
Product Advantages
- Conformal Coating for Harsh Environments: The protective coating significantly extends the lifespan of the module in demanding industries (like oil & gas, wastewater, or chemical processing) by preventing corrosion and electrical shorts caused by humidity and airborne pollutants.
- Built-in Electronic Protection: Each channel is electronically protected against short circuits and overcurrent conditions, eliminating the need for external fusing and reducing system downtime during faults.
- High Density & Compact Footprint: Providing 8 channels within a slim POINT I/O form factor allows panel builders to maximize DIN rail space and reduce control cabinet sizes.
- Hot-Swappable (RIUP): Supports Removal and Insertion Under Power (RIUP), allowing maintenance teams to replace faulty modules without shutting down the entire system, thereby minimizing production losses.
- Granular Diagnostics: Features status indicators (LEDs) for both module health and individual channel status, simplifying troubleshooting on the factory floor.
Crucial Precautions & Installation Guidelines
⚠️ WARNING: Hazardous Environment & Equipment Damage Risk
- Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.
- Electrostatic Discharge (ESD): This module is sensitive to ESD. Touch a grounded object to discharge potential static before handling the device.
- Current Limits: Ensure that the total current load across all 8 channels does not exceed the module’s 1.0 A maximum rating, and no single channel exceeds 0.5 A.
- Terminal Base Compatibility: Always ensure the module is securely keyed to its compatible terminal base (1734-TB or 1734-TBS) before applying power to prevent pins from bending or misaligning.
- Sourcing Output Behavior: Remember that this is a sourcing module. It sources current to the load, meaning the load must be connected between the module output terminal and the DC common side of the power supply.
Common Product Applications
The Allen-Bradley 1734-OB8C is widely utilized in distributed I/O architectures where localized control is required, including:
- Actuator and Valve Control: Controlling low-current DC solenoids, pneumatic valves, and hydraulic actuators in process industries.
- Indication Systems: Driving pilot lights, stack lights, alarm horns, and status panels on machinery.
- Relay Interfacing: Triggering interposing relays for larger AC/DC motor starters or heavy-duty contactors.
- Material Handling & Packaging: Operating small DC motors, gates, and sorting mechanisms on conveyor lines.
- Corrosive/Damp Environments: Ideal for wastewater treatment facilities, marine applications, and chemical manufacturing plants where standard I/O modules might degrade prematurely.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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