Allen-Bradley 1794-TB3GS | Flex I/O Terminal Base Unit

Product Overview

The 1794-TB3GS is an Allen-Bradley Flex I/O Terminal Base Unit designed for reliable I/O connections in industrial automation systems. It provides 36 I/O terminals, 2 common terminals, and 2 voltage terminals, supporting up to 31.2V DC at 2A.

Equipped with grounded spring clamp technology, the 1794-TB3GS ensures secure connections for input/output wiring. Its DIN rail or panel mount installation allows flexible integration alongside I/O adapters, forming a robust backplane for Flex I/O devices.

This terminal base unit is tested for continuous isolation of 50V between field wiring terminals, and its open-style enclosure withstands harsh industrial environments. The 1794-TB3GS maintains reliable operation under -20°C to +70°C, with relative humidity of 5–95% non-condensing, and can endure shock up to 30G and vibration up to 2G.

Key Features

• 36 I/O terminals with 2 common and 2 voltage terminals

• Grounded spring clamp for secure and reliable connections

• Maximum input/output current: 2A, voltage rating: 24V DC/AC

• DIN rail or panel mount installation compatible with Flex I/O adapters

• 50V continuous isolation between field wiring terminals

• Operating temperature: -20°C to +70°C, storage: -40°C to +85°C

• Open-style enclosure with T4A temperature rating

• Tested for 30G shock and 2G vibration tolerance

• Wire size compatibility: 0.34–3.3 mm², terminal screw torque: 0.56–0.79 Nm

Technical Specifications

Applications

The 1794-TB3GS is ideal for industrial control panels requiring secure I/O connections. It integrates with Allen-Bradley Flex I/O adapters for machine automation, process control, and modular system expansions.

FAQ

Q1: Is the 1794-TB3GS brand new?
A1: Yes, the 1794-TB3GS is full new and original from Allen-Bradley.

Q2: How fast can the terminal base unit be shipped?
A2: We have stock. Shipping occurs within 3 days to 2 weeks depending on order size.

Q3: What mounting options are available?
A3: The 1794-TB3GS supports DIN rail and panel mount installation for Flex I/O adapters.

Q4: What is the maximum voltage and current rating?
A4: This unit supports up to 31.2V DC/AC at a maximum of 2A per terminal.

Q5: Can the 1794-TB3GS operate in harsh industrial environments?
A5: Yes, it is rated for -20°C to +70°C operation, 30G shock, and 2G vibration tolerance.