Allen Bradley 1794-TB3 Flex I/O Terminal Docking Unit
Allen Bradley 1794-TB3 Flex I/O Terminal Docking Unit
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Brand:Allen Bradley PLC Item No.:1794-TB3 Product Origin:USA Product Dimensions:94 x 94 x 69 mm Product Weight:0.23 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen-Bradley 1794-TB3 Flex I/O Terminal Docking Unit is a key infrastructure component in Flex I/O distributed control systems. It acts as the interface between field wiring and I/O modules, enabling modular, flexible system architecture.
Each module plugs into the terminal base, which handles signal routing and backplane communication. This design allows technicians to replace modules without disturbing field wiring, significantly improving maintenance efficiency and system uptime.
The 1794-TB3 is widely used in industrial automation environments where scalability, reliability, and reduced wiring complexity are critical design requirements.
Technical Specifications
Parameter
Specification
Product Model
1794-TB3
Product Type
Flex I/O Terminal Base / Docking Unit
Brand
Allen-Bradley
System Platform
Flex I/O
Function
Module wiring and backplane interface
Mounting Type
DIN rail
Wiring Type
Screw clamp terminals
Module Compatibility
Flex I/O digital, analog, relay modules
Application
Distributed industrial automation
Dimensions
94 × 94 × 69 mm
Weight
0.23 kg (0.51 lb)
Industrial Applications
The Allen-Bradley 1794-TB3 is a Flex I/O terminal base (docking unit) used as the physical interface between Flex I/O modules and field wiring. It provides the connection point for signal routing, power distribution, and backplane communication in distributed I/O systems.
Typical applications include:
PLC-based distributed I/O systems
Manufacturing automation panels
Process control systems
Conveyor and material handling equipment
Packaging and assembly machinery
Remote I/O installations
Industrial machine control systems
Factory automation networks
Product Advantages
Provides secure mounting and wiring interface for Flex I/O modules
Enables quick module replacement without rewiring field connections
Supports distributed automation architectures
Reduces panel wiring complexity
DIN rail mounting for easy installation
Stable electrical and signal connection to I/O backplane
Modular and scalable system design
Compatible with multiple Flex I/O module types
Technical FAQs
1. What is the main function of this unit?
It serves as the wiring and docking interface for Flex I/O modules.
2. Does it process signals?
No, it only provides electrical and mechanical connection.
3. What system is it used in?
It is part of the Allen-Bradley Flex I/O distributed I/O system.
4. Can modules be replaced without rewiring?
Yes, field wiring remains on the base while modules can be swapped.
5. What types of modules are supported?
Digital, analog, relay, and specialty Flex I/O modules.
6. How is it installed?
It mounts on a DIN rail as part of a modular assembly.
7. Why is a terminal base needed?
It provides wiring termination and backplane connectivity.
8. Does it reduce downtime?
Yes, it allows fast module replacement and maintenance.
9. Is it reusable?
Yes, it remains installed while modules are replaced.
10. What industries use it?
Manufacturing, oil & gas, automotive, packaging, and process industries.
