Product Details
Product Overview
The Allen Bradley 1794-TB3GK provides a high-integrity connection point for the FLEX™ I/O distributed system. This terminal base unit houses the I/O module and provides the interface to the FlexBus backplane. It features 3-wire screw terminations, making it ideal for high-density sensor and actuator connections. Specifically designed for longevity in demanding conditions, this version features conformal coating to resist environmental contaminants. We supply this unit as 100% Brand New and Original, ensuring your distributed I/O architecture maintains maximum uptime in corrosive or humid atmospheres.
Technical Specifications
The 1794-TB3GK offers robust mechanical and electrical interfacing for industrial nodes:
| Feature | Specification |
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Line | FLEX I/O |
| Termination Type | Screw Clamp (3-Wire) |
| Protection Rating | IP20 |
| Special Coating | Conformal Coated (K-Series) |
| Mounting | DIN Rail or Panel Mount |
| Category | Distributed I/O Terminal Base |
| Weight | 3.00 lbs (1.36 kg) |
| I/O Capacity | Supports 1 FLEX I/O Module |
Engineering Advantages
The 1794-TB3GK solves critical deployment challenges in process and heavy industry:
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Superior Chemical Resistance: The conformal coating provides a protective barrier against moisture, salt spray, and corrosive chemical vapors. This prevents trace-level corrosion on internal circuitry, a technical necessity for wastewater treatment plants, paper mills, and oil and gas facilities.
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Simplified Field Wiring: The 3-wire screw termination design allows for direct connection of sensors and actuators without requiring additional external terminal strips. This reduces the number of potential failure points and streamlines the troubleshooting process for maintenance technicians.
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Rugged Mechanical Interlocking: The module-to-base interlocking mechanism ensures a secure electrical contact even in high-vibration environments. The base snaps firmly onto standard DIN rails, preventing lateral movement during machine operation.
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FlexBus Scalability: The integrated backplane connector extends the FlexBus to the next terminal base in the row. This modular "daisy-chain" architecture allows engineers to expand I/O capacity without complex bus cabling or special termination resistors.
FAQs
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What does the "K" suffix in the part number signify?
The "K" designates that the 1794-TB3GK undergoes a specialized conformal coating process during manufacturing. This protects the internal PCB from environmental stressors like humidity and airborne contaminants, whereas the standard 1794-TB3 does not have this layer.
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Can I mix conformal coated bases with standard bases on the same rail?
Yes. The 1794-TB3GK remains physically and electrically compatible with all standard FLEX I/O components. However, for maximum system protection in harsh environments, we recommend using conformal coated modules (K-series) and bases throughout the entire rack.
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How do I ensure a secure connection with the screw terminals?
Use a small flat-head screwdriver and follow the torque specifications provided in the installation guide. Proper torque prevents wire pull-out and ensures a low-resistance electrical path, especially in high-current 24V DC applications.
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Is this a genuine Allen Bradley product?
We guarantee that every 1794-TB3GK we ship is 100% Brand New and Original. The unit arrives in the factory-sealed box with the original UPC, batch code, and Rockwell Automation quality documentation.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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