Allen-Bradley 1794-TBNK Flex I/O Terminal Base

Series#: AllenBradley

Product Details

1794-TBNK – Allen-Bradley FLEX Terminal Base, designed for high-density I/O module mounting in industrial automation systems.
Compact NEMA-style enclosure with 20-position terminal block, supporting up to 16 AWG wire for reliable field wiring.
Integrated backplane connector ensures secure, tool-free module attachment and quick replacement in harsh environments.
Rated for -20°C to +60°C operation, with UL, CSA, and CE certifications for global compliance.
Compatible with all 1794 FLEX I/O modules, including analog, digital, and specialty types, reducing inventory complexity.
100% Brand New & Original, securely packed and ready for reliable global shipping.

Specification

The Allen-Bradley 1794-TBNK FLEX Terminal Base is a critical component for distributed I/O architectures, providing a robust mechanical and electrical interface between field devices and control systems. This base unit, part of the proven FLEX platform, features a 20-position terminal block that simplifies wiring for discrete and analog signals. Its design supports high-density configurations while maintaining signal integrity through a shielded backplane. The 1794-TBNK is engineered for demanding industrial environments, offering vibration resistance and a compact footprint that saves panel space. Whether used in process plants or discrete manufacturing, this terminal base ensures reliable signal transmission and easy maintenance, making it a preferred choice for system integrators and end-users alike.

Parameter	Specification
Model Number	1794-TBNK
Product Type	FLEX Terminal Base (NEMA Style)
Number of Terminal Positions	20 (screw-type, removable)
Wire Size Range	16 AWG to 22 AWG (solid or stranded)
Rated Voltage	24V DC nominal (max 30V DC per terminal)
Current Rating per Terminal	2 A (continuous)
Backplane Connector Type	Integral 10-pin, keyed for module alignment
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 peak (per IEC 60068-2-27)
Enclosure Material	Polycarbonate, UL 94 V-0 rated
Mounting Method	DIN rail (35 mm) or panel mount with screws
Weight	0.12 kg (0.26 lb)
Dimensions (H x W x D)	90 mm x 40 mm x 75 mm (3.54 in x 1.57 in x 2.95 in)
Certifications	UL 508, CSA C22.2 No. 142, CE (EN 61131-2)
Compatible Modules	All 1794 FLEX I/O modules (AC/DC models, standard models)
Wiring Torque	0.5 Nm (4.5 lb-in) for screw terminals
Protection Rating	IP20 (with module installed)