Allen-Bradley 1794-TBN FLEX I/O Terminal Base Unit, NEMA Screw Clamp, 16 I/O
Allen-Bradley 1794-TBN is a FLEX I/O terminal base unit with NEMA-style screw clamp terminations, providing 16 I/O connections and 2 common terminals for the 1794 Flex, FlexEx and FlexXT I/O systems.
Overview
The 1794-TBN holds the field wiring for up to 16 I/O points plus two common terminals, rated 10 A for applications up to 250 V AC/DC with 250 V isolation. It accepts 22…12 AWG wire at a terminal screw torque of 1.4 Nm, operates from -20 to 70 °C, and lets any FLEX I/O module be swapped in seconds without touching a single conductor.
Key Features
- 16 I/O connections plus 2 common terminals
- NEMA-style screw clamp terminations
- Rated 10 A for applications up to 250 V AC/DC; isolation 250 V
- Wire size 22 to 12 AWG; terminal screw torque 1.4 Nm
- 50/60 Hz; DIN rail mount; hot-swappable with any FLEX I/O module
- Operating -20…70 °C; storage -40…85 °C; 5…95% RH non-condensing
Technical Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Line | FLEX I/O (1794) |
| Series | FLEX I/O 1794 |
| Part Number / Catalog No. | 1794-TBN |
| UPC | 612598137886 |
| Product Type | Flex I/O Terminal Base Unit |
| Terminal Type | Screw Clamp (NEMA) |
| Number of I/O | 16 I/O, 2 Common Terminals |
| Current Rating | 10 A |
| Used in Applications | 250 V AC/DC |
| Isolation Voltage | 250 V |
| Wire Size | 22 to 12 AWG |
| Terminal Screw Torque | 1.4 Nm |
| Dimensions | 12 x 8 x 6 cm (4.7 x 3.1 x 2.4 in) |
| Weight | 0.56 lbs (0.26 kg) |
| Operating Temperature | -20 to 70 °C (-4 to 158 °F) |
| Relative Humidity | 5 to 95% (non-condensing) |
Applications
The 1794-TBN is the workhorse base for standard 1794 digital and analog banks — 16 signal channels plus two commons cover most 16-point I/O modules. Typical uses include machine I/O distribution, motor control signaling and remote I/O drops mounted directly beside the machine.
Why Buy from Us
This terminal base is available new in original factory packaging, fully tested and backed by a standard warranty of 1 year. We ship worldwide with careful protective packaging and fast dispatch. Quantity discounts and repair/exchange options are available on request.
Documents
| Resource | Title | Link |
|---|---|---|
| Publication | 1794-IN092 — FLEX I/O Terminal Base Units Installation Instructions (English) | 1794-in092_-en-p.pdf |
| Publication | 1794-PP019 — FLEX I/O Product Profile (English) | 1794-pp019_-en-p.pdf |
