1794-TB3S

• Features 18 built-in +V terminals and 18 Common terminals
• Enables direct termination for 3-wire field devices
• Upgraded to support a 125V wide operating and isolation voltage range

1794-TB3S features spring-clamp terminations, which serves as the primary distinction from the standard screw-clamp base (1794-TB3). The spring-loaded mechanism provides a constant, self-adjusting retention force on the conductors, automatically compensating for thermal expansion, contraction, or structural relaxation. This eliminates the necessity for routine screw-retightening, reducing installation labor while delivering high reliability in heavy-vibration industrial environments like automotive stamping lines, material conveyors, and mining machinery.

Functionally, the internal circuitry of this terminal base is primarily intended for integration with input modules when utilizing 3-wire input proximity switches, allowing direct sensor power routing, common return, and signal line landing on the same base. Beyond input configurations, its electrical topology ensures it can also be used with output modules to drive external actuators, valves, or relays. Rated for a maximum total current capacity of 10 Amperes, the 1794-TB3S supports Removal and Insertion Under Power, enabling modules to be hot-swapped without disconnecting field cables or disrupting backplane bus communication. Fully integrated within the Studio 5000 / RSLogix 5000 hardware profiles, this terminal base serves as a core hardware component for vibration-resistant wiring and power management in industrial cabinets.