Allen Bradley 1794-TB3G FLEX I/O Grounded Terminal Base Unit

Product Overview

The Allen Bradley 1794-TB3G functions as a high-performance grounded terminal base unit within the FLEX I/O product family. It provides the necessary termination points for I/O wiring and serves as the mounting platform for FLEX I/O modules. This unit specifically supports high-resolution analog applications, offering a stable environment for 15-bit + sign precision signaling. We offer this unit as 100% Brand New original equipment to ensure maximum signal integrity and backplane reliability for your distributed I/O architecture.

Technical Specifications

The 1794-TB3G excels in high-accuracy environments, maintaining tight tolerances even during temperature fluctuations.

Engineering Advantages

• Precision Signal Processing: The unit manages a 15-bit plus sign resolution, allowing the system to detect minute changes in current (0.656 µA) and voltage (0.320 mV). This sensitivity supports advanced process control where precision determines product quality.

• Superior Isolation Protection: This terminal base features reinforced isolation, withstanding type tests up to 2550V DC. This protects the sensitive system backplane from field-side electrical surges and eliminates cross-channel interference.

• Rapid Response Dynamics: The digital-to-analog converter achieves a step response to 63% of full scale in less than 25 µs. This speed enables real-time adjustments in fast-acting closed-loop control systems.

• Thermal Stability: Advanced circuitry limits accuracy drift to just 0.0012% Full Scale per degree Celsius for voltage inputs. This stability ensures the controller maintains calibrated accuracy even in cabinets subject to significant heat fluctuations.

FAQs

• What makes the "G" version different from the standard 1794-TB3?

  The 1794-TB3G includes additional grounding terminals specifically designed for modules requiring a functional ground. This reduces electromagnetic noise and improves the performance of sensitive analog input and output modules.

• Does this unit require field calibration?

  No. Allen Bradley factory-calibrates the 1794-TB3G before shipment. You can integrate the unit directly into your system without performing manual adjustments, ensuring the 0.1% full-scale accuracy immediately upon startup.

• Can I use this terminal base with digital I/O modules?

  While primarily optimized for analog modules due to its resolution and grounding capabilities, the 1794-TB3G remains compatible with a wide range of FLEX I/O modules. Always verify the specific module's installation manual to confirm pin-out compatibility with the TB3G base.

• Is this a Brand New unit or a surplus item?

  We guarantee this product is 100% Brand New. It arrives in the original factory packaging, ensuring the terminal screws, backplane connectors, and mounting clips have never been subjected to mechanical wear or environmental oxidation.