

The Allen-Bradley 1794-TBNF Terminal Base is a critical component for Flex I/O distributed control systems, providing a secure and efficient wiring interface for field devices. Designed for industrial automation environments, this terminal base supports up to 16 I/O modules per unit, enabling scalable and flexible system configurations. The 1794-TBNF features a robust thermoplastic housing that withstands vibration, temperature extremes, and chemical exposure, ensuring long-term reliability in harsh manufacturing settings. With a 20-pin NEMA-style connector, it simplifies field-side wiring and reduces installation errors. This terminal base is fully compatible with standard AC and DC models of the 1794 series, including analog, digital, and specialty modules, making it a versatile choice for process control, discrete manufacturing, and material handling applications.
| Specification | Details |
|---|---|
| Product Type | Terminal Base for Flex I/O |
| Model Number | 1794-TBNF |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Number of I/O Modules Supported | Up to 16 per base |
| Connector Type | 20-pin NEMA-style (field-side) |
| Mounting Method | DIN rail or panel mount (snap-on) |
| Housing Material | Thermoplastic, industrial grade |
| Environmental Rating | NEMA 1, 4, 12 (when properly enclosed) |
| Operating Temperature | -20°C to +60°C (-4°F to +140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Relative Humidity | 5% to 95% non-condensing |
| Vibration Resistance | 5 g Standard Models 10-500 Hz per IEC 60068-2-6 |
| Shock Resistance | 30 g Standard Models 11 ms per IEC 60068-2-27 |
| Compatible Modules | 1794 series AC models, DC models, analog, digital, and specialty modules |
| Weight | Approx. 0.3 kg (0.66 lbs) |
| Dimensions (H x W x D) | 105 mm x 60 mm x 45 mm (4.13 in x 2.36 in x 1.77 in) |
| Certifications | CE, UL, CSA, ATEX (when used with approved modules) |
| Wiring Specifications | Solid or stranded wire, 14-22 AWG, torque 0.5-0.6 Nm |
| Maximum Current per Contact | 2 A (continuous) |
| Maximum Voltage | 30 V DC or 120 V AC (depending on module) |

What Does Our Clients Say
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Laura Navas
Great product!
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