Allen-Bradley 1794-TB3G FLEX I/O Terminal Base Unit – FLEX I/O Series
Imagine a production line halted mid-shift — not because of a failed drive or a blown fuse, but because a single terminal base unit has failed, leaving an entire FLEX I/O module without a wiring interface. Without the 1794-TB3G, field wiring cannot connect to the I/O module, signals go dark, and the PLC loses visibility into the process. In discrete manufacturing, food processing, or water treatment, even minutes of unplanned downtime translate directly into lost output and costly recovery. The Allen-Bradley 1794-TB3G is not a peripheral accessory — it is the foundational wiring interface that makes FLEX I/O field connectivity possible.
Within the Allen-Bradley FLEX I/O family, the 1794-TB3G occupies a critical position as a general-purpose, screw-type terminal base unit compatible with a wide range of 1794-series I/O modules. Rockwell Automation’s FLEX I/O platform is one of the most widely deployed distributed I/O architectures in global industrial automation, trusted in automotive assembly, oil & gas, packaging, and building automation applications worldwide. The 1794-TB3G’s robust screw-terminal design and compact DIN-rail form factor make it the preferred wiring base for engineers who demand reliability and ease of maintenance in demanding field environments.
Technical Specifications
- Part Number: 1794-TB3G
- Series: Allen-Bradley FLEX I/O
- Terminal Type: Screw-type terminal base
- Mounting: DIN rail (35 mm)
- Compatible Modules: 1794-series FLEX I/O modules
- Wiring Style: Individual screw terminals for field wiring
- Manufacturer: Rockwell Automation / Allen-Bradley
- Weight: Approx. 200 g
- Note: All specifications are based on published Rockwell Automation documentation. Konmask.com does not fabricate or alter manufacturer specifications.
Key Features & Benefits
- Secure Field Wiring Interface: Screw-type terminals provide a reliable, vibration-resistant connection for field cables in harsh industrial environments.
- Plug-and-Play Module Compatibility: Designed to accept 1794-series I/O modules directly, enabling fast module swaps without rewiring field cables.
- Compact DIN-Rail Footprint: Space-efficient design supports high-density I/O installations in control panels and junction boxes.
- Reduced Maintenance Downtime: Field wiring remains on the base unit during module replacement, minimizing rewiring time and human error.
- Proven Platform Reliability: Part of Rockwell Automation’s globally trusted FLEX I/O ecosystem, with decades of deployment across critical industries.
- Global Availability: Konmask.com maintains sourcing channels for both new and surplus 1794-TB3G units to support urgent procurement needs.
Industry & Equipment Applications
- Discrete Manufacturing: Automotive assembly lines, stamping, and welding cells using Allen-Bradley FLEX I/O distributed I/O racks.
- Food & Beverage Processing: Hygienic production environments requiring reliable field wiring with easy module serviceability.
- Oil & Gas: Remote I/O panels in wellhead, pipeline, and refinery control systems.
- Water & Wastewater Treatment: Distributed control architectures for pump stations and treatment plant automation.
- Packaging Machinery: High-speed packaging lines where I/O module hot-swap capability reduces changeover downtime.
- Building Automation & HVAC: BAS controllers integrating FLEX I/O for field device monitoring and control.
System Integration & Compatible Parts
The 1794-TB3G is designed to work within the broader Allen-Bradley FLEX I/O ecosystem. Commonly integrated components include:
- FLEX I/O Adapter Modules: 1794-ADN (DeviceNet), 1794-AENT (EtherNet/IP), 1794-APB (PROFIBUS) — for network communication
- FLEX I/O Digital I/O Modules: 1794-IB16, 1794-OB16, 1794-IA16 — discrete input/output modules mounted on the TB3G base
- FLEX I/O Analog Modules: 1794-IE8, 1794-OE4 — analog signal modules compatible with this terminal base
- Power Supply Units: 1794-PS13, 1794-PS1 — FLEX I/O power supplies for the I/O bank
- DIN Rail & Mounting Hardware: Standard 35 mm DIN rail accessories for panel installation
If you need assistance identifying compatible modules or building a complete FLEX I/O configuration, contact our technical team at support@konmask.com.
Our Quality Assurance Process
At Konmask.com, every Allen-Bradley 1794-TB3G unit goes through a structured verification process before shipment:
- Source Verification: Units are sourced from authorized distributors, certified surplus channels, or directly from Rockwell Automation supply chains.
- Visual & Physical Inspection: Each unit is inspected for terminal integrity, housing condition, labeling accuracy, and absence of counterfeit indicators.
- Documentation Review: Traceability documentation, including date codes and country of origin markings, is reviewed and retained on file.
- Packaging Integrity: Units are packed in anti-static, protective packaging to prevent transit damage and ESD risk.
- Post-Sale Support: Our technical team is available to assist with installation questions and compatibility verification after purchase.
How to Order
- Submit an Inquiry: Use the contact form on this page or email support@konmask.com with your required quantity and delivery timeline.
- Receive a Quote: Our team will respond within 1 business day with pricing, availability, and lead time.
- Confirm & Pay: Approve the proforma invoice and complete payment via your preferred method (T/T, PayPal, or other agreed terms).
- Shipment & Tracking: Your order is packed, shipped, and tracked — with full documentation provided for customs clearance.
- After-Sales Support: Contact us anytime post-delivery for technical assistance or warranty claims.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- Global Sourcing Network: Access to both new and surplus Allen-Bradley inventory from verified international supply chains.
- Fast Response: Inquiries answered within 1 business day; urgent orders prioritized.
- Technical Expertise: Our team includes engineers with hands-on experience in Rockwell Automation systems.
- Transparent Documentation: Full traceability records available upon request for compliance and audit purposes.
- Competitive Pricing: Direct sourcing relationships allow us to offer market-competitive pricing without compromising quality.
Frequently Asked Questions
Q: What is the difference between 1794-TB3G and other 1794 terminal base units?
A: The 1794-TB3G is a general-purpose screw-type terminal base. Other variants in the 1794 series may offer spring-clamp terminals (e.g., 1794-TB3GS) or different wiring configurations. The TB3G is the most widely used variant for standard field wiring applications.
Q: Can I replace a 1794-TB3G without rewiring field cables?
A: The terminal base is designed so that field wiring remains on the base unit when the I/O module is removed. However, replacing the base unit itself requires disconnecting field wiring. Module hot-swap is supported; base unit replacement requires a planned maintenance window.
Q: Is the 1794-TB3G compatible with all FLEX I/O modules?
A: The 1794-TB3G is compatible with a wide range of 1794-series I/O modules. Always verify compatibility with the specific module part number using Rockwell Automation’s product compatibility documentation or contact our team for assistance.
Q: Do you supply both new and surplus 1794-TB3G units?
A: Yes. Konmask.com sources both factory-new and quality-verified surplus units. Surplus units undergo our full inspection process. Please specify your preference when submitting an inquiry.
Q: What is the typical lead time for the 1794-TB3G?
A: Lead time depends on current stock levels and your location. In-stock units typically ship within 3–5 business days. For urgent requirements, contact us directly for expedited options.
Q: Can Konmask.com provide a complete FLEX I/O system configuration?
A: Yes. We can source complete FLEX I/O assemblies including adapters, I/O modules, power supplies, and terminal bases. Contact our technical team with your system requirements for a comprehensive quote.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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