Allen-Bradley 1794-TB3GS Flex I/O Grounded Terminal Base

Allen-Bradley 1794-TB3GS Flex I/O Spring-Clamp Grounded Terminal Base

Availability: 2 left in stock

The 1794-TB3GS is a 36-point spring-clamp grounded terminal base unit designed for the Allen-Bradley Flex I/O 1794 modular platform. This...

SKU: 1794-TB3GS

Manufacturer: Allen-Bradley
Product No.: 1794-TB3GS
Product Type: Terminal Base
Product Origin: USA
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The 1794-TB3GS is a 36-point spring-clamp grounded terminal base unit designed for the Allen-Bradley Flex I/O 1794 modular platform. This terminal base serves as the physical mounting and electrical termination interface for various digital and analog I/O modules, providing a robust connection point in industrial control systems.

Features

Vibration-Resistant Design: Utilizes constant-force spring-clamp (cage clamp) technology to maintain secure wire connections, eliminating the need for periodic retightening.
Grounded Infrastructure: The "G" and "S" designation indicates integrated chassis grounding, ideal for analog signals and environments with high electromagnetic interference (EMI).
Flexbus Integration: Features an internal backplane pass-through to distribute logic power and data signals across adjacent Flex I/O modules.
High-Density Termination: Provides 36 active terminals plus auxiliary common and voltage terminals for efficient field-device wiring.
Mechanical Keying: Includes a rotatable keyswitch to prevent the insertion of incompatible modules, ensuring system safety and preventing hardware damage.

Applications

The 1794-TB3GS is intended for use in distributed I/O applications where high-density wiring and vibration resistance are required. It is commonly deployed in manufacturing, process control, and material handling systems that utilize the Allen-Bradley Flex I/O platform.

Technical Specifications

Model	1794-TB3GS
Brand	Allen-Bradley / Rockwell Automation
Terminal Type	Spring-Clamp (Cage Clamp)
Termination Points	36 Active Terminals
Voltage Rating	24V AC/DC
Current Capacity	10.0 A (Aggregate)
Mounting	DIN-Rail (Top-Hat)
Operating Temperature	-20 to 70 deg C (-4 to 158 deg F)
Enclosure Rating	IP20

Installation Guidelines

Mounting: Snap the terminal base onto a standard 35mm DIN-rail. Ensure the base is securely locked into position.
Wiring: Use appropriate wire gauges for the spring-clamp terminals. Strip wires to the manufacturer-specified length to ensure proper contact without exposing excessive copper.
Keying: Before installing an I/O module, set the mechanical keyswitch on the base to match the keying of the specific module being used.
Power: Always disconnect field power and system power before installing or removing I/O modules from the terminal base.
Grounding: Ensure the chassis ground connection is properly established to take advantage of the grounded terminal base design for EMI protection.

FAQ

What is the primary difference between the 1794-TB3GS and standard terminal bases?

The 1794-TB3GS includes integrated chassis grounding (denoted by the "G") and spring-clamp terminals (denoted by the "S"), providing superior vibration resistance and noise immunity compared to standard screw-terminal bases.

Can I use this base with any Flex I/O module?

The 1794-TB3GS is compatible with most 1794 Flex I/O modules, but the mechanical keyswitch must be set correctly to match the specific module to prevent improper installation.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.