Allen-Bradley 1794-TB3GS FLEX I/O Spring-Clamp Terminal Base Unit
$123.00
$320.00
Description
Allen-Bradley 1794-TB3GS FLEX I/O Spring-Clamp Terminal Base Unit
The Allen-Bradley 1794-TB3GS, also cataloged as the 1794-TB3GS FLEX I/O Spring-Clamp Terminal Base Unit, operates as a dedicated wiring interface component for field signal termination and module connection within the Rockwell Automation FLEX I/O System.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-TB3GS |
| Brand | Allen-Bradley |
| Product Type | FLEX I/O Spring-Clamp Terminal Base Unit |
| Origin | USA |
| Dimensions | 94 mm x 94 mm x 69 mm |
| Operating Temp | -20 deg C to +70 deg C |
| Terminal Type | Spring-clamp (cage clamp) |
| Terminal Configuration | 3-Wire Terminal Base with Ground Terminals |
| Total Terminals | 36 I/O terminals + 18 common/ground terminals |
| Nominal Voltage Rating | 125 V AC/DC, 50/60 Hz |
| Maximum Operating Voltage | 132 V AC/DC |
| Current Capacity | 10 A max. through I/O terminals; 10 A max. per supply terminal |
| Wire Size Range | 0.21 mm2 to 1.3 mm2 (24 to 16 AWG) solid or stranded copper wire |
| Strip Length | 7 mm |
| Mounting Options | DIN Rail 35 x 7.5 mm, 35 x 15 mm, or direct panel mount |
| Module Compatibility | Allen-Bradley 1794 FLEX I/O modules |
| Insertion Function | RIUP (Removal and Insertion Under Power) support with compatible modules |
EtherNet/IP and FLEX I/O Backplane Integration Characteristics
The 1794-TB3GS provides the physical termination interface between field wiring and FLEX I/O modules. The terminal base forms part of the FLEX I/O modular assembly, allowing adjacent terminal bases to create a continuous backplane connection path.
The unit supports I/O density scaling through modular terminal base expansion. The spring-clamp termination system provides fixed conductor retention without screw torque adjustment. Ground terminals allow direct connection of field cable shields and grounding conductors at the terminal base level.
The FLEX I/O architecture uses module-dependent keyswitch positioning to define the installed I/O module type and maintain correct terminal mapping during replacement procedures.
Frequently Asked Questions
Q: Can the 1794-TB3GS terminal base be removed or replaced while the system is powered?
A: The terminal base supports RIUP capability when used with compatible FLEX I/O modules. Replacement procedures must follow the module-specific installation requirements.
Q: What type of field wiring connection does the 1794-TB3GS provide?
A: The unit uses spring-clamp terminal strips for signal, common, supply, and grounding connections.
Q: How are shield grounding connections handled on this terminal base?
A: The G suffix version provides additional ground terminals for direct field shield and grounding conductor termination.
Field Installation Guidelines
Install the 1794-TB3GS on a compatible DIN rail or direct panel mounting surface according to the mechanical installation requirements of the FLEX I/O system.
Terminate field conductors using the specified spring-clamp wire entry method. Maintain proper separation between signal wiring, AC power conductors, and high-noise switching circuits to reduce electrical interference.
Connect cable shields and grounding conductors to the designated ground terminals. Shield termination practices should follow the control system grounding design and site electrical standards.
Verify terminal assignment before wiring. The terminal arrangement consists of:
- Row A: Terminals 0 to 15 for I/O signal wiring.
- Row B: Terminals 16 to 33 for common or neutral connections.
- Row C: Terminals 34 to 51 for supply voltage and additional ground/shield termination points.
Confirm module keyswitch settings and terminal mapping before energizing the FLEX I/O assembly.
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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