Allen-Bradley 1794-TB3T Terminal Base Unit

FAQ

Q1. What is the main function of 1794-TB3T?
It is a FLEX I/O terminal base used to connect field wiring to FLEX I/O modules while providing a sealed, more rugged connection interface.

Q2. What does the “T” mean in TB3T?
“T” typically indicates a sealed / environmentally enhanced terminal base version, designed for better protection in harsher industrial environments.

Q3. What modules is it compatible with?
It works with standard FLEX I/O modules (digital, analog, and specialty) that use TB3-style terminal bases.

Q4. How is it different from TB3 or TB3S?

• TB3: standard screw clamp
• TB3S: spring clamp
• TB3T: sealed / enhanced environmental protection version

Q5. Does it process signals or logic?
No. It only provides wiring and backplane connection. All processing is done by the attached I/O module.

Q6. What is FlexBus?
FlexBus is the internal backplane that carries power and communication between the terminal base and the module.

Q7. Can modules be replaced while powered?
Yes, FLEX I/O supports RIUP (Removal and Insertion Under Power) depending on system configuration.

Q8. Where is TB3T typically used?
It is used in industrial environments requiring higher resistance to dust, vibration, or harsh panel conditions, while still using FLEX I/O modular architecture.

1794-TB3T Allen Bradley

We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.

For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.

Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.