- NEMA screw-clamp terminal base with a protective terminal cover
- Provides 16 I/O connection points and two common terminals
- Retains field wiring when a compatible FLEX I/O module is exchanged
1794-TBN is the screw-terminal option for FLEX I/O installations that need NEMA-style field termination and a protective cover.
Its removable electronics interface preserves the terminal base and field conductors when a compatible module is exchanged.
Because the terminal arrangement differs from cage-clamp variants, match the module wiring diagram, conductor gauge, torque, voltage class, and supply segmentation before substitution.
Availability, condition, price, and shipping time for 1794-TBN are confirmed during quotation.
Allen-Bradley 1794-TBN FLEX I/O NEMA Screw-Clamp Terminal Base Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- The NEMA base uses screw clamps and includes a protective terminal cover.
- Sixteen I/O, two common, and two positive-supply connections are provided.
- Conductor size, strip length, and terminal torque must follow the official limits.
- Application voltage is limited by both the base and the installed I/O module.
- Side connectors continue FLEXBUS and field power into adjacent terminal bases.
- Separate incompatible voltage or isolation groups with the documented segmentation method.
- Set the rotary key to the position specified for the selected electronics module.
- Remove field and system power before changing modules or terminal conductors.
- Inspect screw clamps, side contacts, cover, latch, and DIN-rail ground before reuse.
- NEMA screw-terminal field wiring for compatible FLEX I/O modules.
- Higher-voltage FLEX I/O field circuits within the base and installed-module ratings.
- Modular DIN-rail stations requiring a covered screw-terminal service interface.