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Product Introduction
The Allen-Bradley 1794-OB8 FLEX I/O Digital DC Output Module is a compact and reliable discrete output module designed for distributed control systems in industrial automation. As part of the FLEX I/O series from Rockwell Automation, it provides dependable 24V DC sourcing outputs for driving field devices such as relays, solenoids, and indicator lights.
With 8 output channels, the 1794-OB8 is well suited for applications that require moderate I/O density while maintaining flexibility in system design. Its modular architecture allows it to be installed close to field devices, reducing wiring complexity and improving system responsiveness.
The module is engineered for stable performance in industrial environments, offering consistent switching capability and compatibility with standard FLEX I/O terminal bases. Its DIN rail mounting and compact structure make it easy to integrate into control cabinets with limited space.
Product Specifications
| Parameter | Description |
|---|---|
| Product Type | Digital DC Output Module |
| Series | FLEX I/O |
| Manufacturer | Rockwell Automation |
| Model Number | 1794-OB8 |
| Number of Channels | 8 Outputs |
| Output Type | Current Sourcing |
| Rated Voltage | 24 VDC |
| Output Current | 5 A (Total module capacity) |
| Output Configuration | Discrete |
| Mounting Method | DIN Rail Mount |
| Housing Type | Open Style |
| Ingress Protection | IP20 |
| Isolation | Channel-to-backplane isolation |
| Response Time | Fast switching for discrete control |
| Wiring Configuration | FLEX I/O terminal base compatible |
| Dimensions | 94 x 46 x 53 mm |
| Weight | 0.073 kg |
Applications
● Used in industrial automation systems to control discrete devices such as relays, contactors, and solenoid valves
● Suitable for small to medium-scale control systems where moderate output density is required
● Applied in machine automation, including packaging equipment, conveyors, and assembly stations
● Ideal for distributed I/O systems, enabling installation closer to field devices and reducing wiring costs
● Integrated into PLC-based architectures, especially with ControlLogix and CompactLogix controllers
● Common in process industries for switching DC loads in stable and controlled environments
Advantages
● Compact 8-point design provides efficient use of space while maintaining flexibility
● Reliable sourcing output ensures stable operation with standard industrial loads
● 5A current handling capability supports a wide range of field devices
● Easy DIN rail installation simplifies setup and maintenance
● Flexible system integration with the FLEX I/O platform supports distributed architectures
● Reduced wiring complexity by allowing remote I/O placement near equipment
● Industrial-grade durability ensures consistent performance in demanding environments
