- Cage-clamp terminal base for compatible FLEX I/O modules
- Provides 16 I/O terminals for two-wire field connections
- Keeps field conductors landed while the electronics module is removed or replaced
1794-TB2 forms the mechanical, electrical, and field-wiring interface beneath one FLEX I/O module.
Its cage-clamp terminals retain the field wiring when the removable electronics module is changed, reducing the need to disturb individual conductors.
Select it only after checking the module’s approved base list, conductor type, terminal capacity, application voltage, and required common or power distribution.
Availability, condition, price, and shipping time for 1794-TB2 are confirmed during quotation.
Allen-Bradley 1794-TB2 FLEX I/O Two-Wire Cage-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 two-wire base provides 16 I/O, 18 common, and two positive-supply terminals.
- Cage-clamp terminals retain field conductors independently from the removable electronics module.
- Terminal numbering must be matched to the installed module’s official wiring diagram.
- FLEXBUS and field-power connections continue through the side connectors of adjacent bases.
- Keep V and common current within the documented terminal-base limit.
- Start a separate field-power segment when voltage, current, or isolation requirements change.
- Mount the base squarely on grounded 35 mm DIN rail before attaching adjacent units.
- Set the keyswitch to the position required by the selected I/O module.
- Inspect side contacts, latch, terminal clamps, and module seating before energizing.
- Two-wire field termination for compatible FLEX I/O input or output modules.
- DIN-rail distribution of FLEXBUS, field supply, and common connections across a modular station.
- Maintenance installations where electronics are replaced without removing the retained field conductors.