Allen-Bradley 1794-TB3 FLEX I/O Terminal Base Unit
$123.00
$320.00
Description
Overview
The 1794-TB3 terminal base unit is part of the Allen-Bradley FLEX I/O distributed I/O platform, designed to provide field wiring connections and module mounting for FLEX I/O systems. The unit supports secure DIN rail installation and simplifies maintenance with removable I/O modules and organized terminal layouts.
Built for industrial control environments, the terminal base accommodates three-wire screw clamp wiring configurations and supports high-current field connections. Its open-style construction enables straightforward integration inside control panels and automation cabinets.
Key Features
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Designed for Allen-Bradley FLEX I/O modules
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DIN rail mounting configuration
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Cage-clamp terminal connection system
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Supports up to 10 A terminal current
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Removable terminal base architecture for simplified maintenance
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16 I/O terminal points with 18 common terminals
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Suitable for 125V AC/DC applications
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Open-style enclosure for panel integration
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Reliable electrical isolation for industrial systems
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Allen-Bradley |
| Product Series | FLEX I/O 1794 |
| Product Type | Terminal Base Unit |
| Model Number | 1794-TB3 |
| Mounting Method | DIN Rail |
| Terminal Connection Type | Cage-Clamp / Screw Clamp |
| Number of I/O Terminals | 16 |
| Number of Common Terminals | 18 |
| Number of Voltage Terminals | 18 |
| FLEXBus Voltage | 5 VDC |
| FLEXBus Current Capacity | 640 mA |
| V/COM Supply Voltage | 125V AC/DC |
| Frequency Rating | 50/60 Hz |
| Maximum Terminal Current | 10 A |
| Continuous Isolation Voltage | 125 V |
| Terminal Screw Torque | 0.56 to 0.79 Nm |
| Operating Temperature | -20°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Enclosure Type | Open Style |
| Weight | 0.26 kg |
Design and Installation
The 1794-TB3 is engineered for modular FLEX I/O assemblies where quick replacement and simplified field wiring are important. The base remains wired during module replacement, reducing system downtime and maintenance effort.
Its cage-clamp terminal system provides stable electrical connections under vibration and fluctuating industrial conditions. The DIN rail mounting design supports compact cabinet layouts in distributed control systems.
Typical Applications
Common installation environments include:
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PLC remote I/O stations
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Manufacturing automation systems
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Packaging equipment
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Material handling systems
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Process control panels
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OEM machinery
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Water and wastewater facilities
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Power generation auxiliary systems
Compatibility
The terminal base is compatible with Allen-Bradley FLEX I/O communication adapters and I/O modules within the 1794 series platform. It is commonly used with analog, digital, and specialty FLEX I/O modules.
FAQ
What is the primary function of the 1794-TB3?
The unit serves as the wiring and mounting base for Allen-Bradley FLEX I/O modules, providing field signal termination and FLEXBus connectivity.
Does the terminal base support DIN rail installation?
Yes. The 1794-TB3 is designed specifically for standard DIN rail mounting applications.
What type of terminal connection is used?
The base utilizes cage-clamp screw terminals for secure industrial wiring connections.
Can the I/O module be replaced without rewiring?
Yes. FLEX I/O modules can be removed and replaced while the terminal wiring remains connected to the base unit.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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