Product Description
The Allen-Bradley 1794-TBN FLEX I/O Terminal Base Unit provides the essential interface between FLEX I/O modules and field devices. Designed by Rockwell Automation, it simplifies signal and power wiring in modular automation systems.
This terminal base features 16 I/O terminals, two common terminals, and two +V terminals, allowing efficient power distribution to connected I/O modules. Moreover, the NEMA-style screw clamps ensure solid connections, even under vibration or thermal stress. Its DIN-rail mounting design makes installation fast and adaptable for control cabinets.
Functional Highlights
The 1794-TBN terminal base enhances the reliability and flexibility of FLEX I/O systems. It accommodates both discrete and analog modules, ensuring compatibility across diverse control applications. Furthermore, its 250V AC/DC, 10A rating supports high-power connections while maintaining electrical isolation from other modules.
Key Advantages:
- Supports up to 16 I/O connections per module
- NEMA-style screw clamps for reliable wiring retention
- Two common and two +V terminals for power distribution
- Voltage isolation up to 250V continuous
- Compact 94 × 94 × 69 mm form factor saves space
- Complies with IP20 protection for industrial safety
Therefore, the 1794-TBN delivers dependable signal integrity and mechanical stability for long-term industrial operation.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Part Number | 1794-TBN |
| Product Family | FLEX I/O Series |
| Type | Terminal Base Unit |
| Terminal Points | 16 I/O terminals |
| Common / +V Terminals | 2 Common, 2 +V |
| Mounting Type | DIN rail |
| Voltage Rating | 24V, 120V, 230V DC/AC |
| Max Voltage / Current | 250V AC/DC, 10A |
| Isolation Voltage | 250V continuous |
| Terminal Screw Torque | 1.4 Nm (12 lb-in) |
| Temperature Range | -20°C to +70°C (-4°F to +158°F) |
| Dimensions (H × W × D) | 94 × 94 × 69 mm |
| Environmental Rating | IP20 |
| Compatible Modules | All Rockwell FLEX I/O discrete, analog, and communication modules |
In addition, proper wiring using copper conductors and torque calibration ensures safe operation and compliance with Rockwell Automation standards.
System Integration Applications
The Allen-Bradley 1794-TBN terminal base is widely used in factory automation, material handling, and process control environments. It serves as the core connection platform between FLEX I/O modules and PLC controllers. For instance, it allows system engineers to combine analog sensors, digital switches, and actuators within a unified distributed control architecture.
Moreover, the unit’s DIN-rail compatibility ensures fast expansion of I/O channels, making it ideal for scalable and modular automation systems.
Details
| Weight | 1.5 kg |
|---|---|
| Dimensions | 2388 × 2388 × 1753 mm |
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