Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | Allen-Bradley 1794-TBNF |
| Manufacturer | Rockwell Automation (Allen-Bradley) |
| Series | FLEX I/O 1794 |
| Product Type | Fused Terminal Base Unit |
| Function | Field wiring interface + FlexBus backplane connection with fuse protection |
| Wiring Method | Screw clamp terminals |
| Terminal Structure | 2 terminal strips (10 points each) |
| I/O Terminals | 16 I/O points |
| Power / Common Terminals | 2 COM + 2 +V terminals |
| Fuse Type | 5 × 20 mm fuses (per protected channel) |
| Number of Fuses | 8 fused channels |
| Fuse Rating | ~1.6 A slow-blow (typical) |
| Field Voltage Rating | 24 VDC / 120–230 VAC |
| Max Voltage | Up to 250 V AC/DC |
| Current Rating | Up to 10 A |
| Isolation Voltage | Up to 250 V continuous |
| Backplane Current | ~640 mA @ 5 VDC |
| Compatible Modules | 1794-OA8, 1794-OA8I, 1794-OW8, 1794-OW8XT |
| Mounting Type | DIN rail |
| Enclosure | Open-style |
| Operating Temperature | 0 to 55 °C |
| Storage Temperature | -40 to 85 °C |
| Dimensions | ~94 × 94 × 69 mm |
| Net Weight | ~0.22 kg |
FAQ
FAQ
Q1. What is the main function of 1794-TBNF?
It is a terminal base used to connect field wiring to FLEX I/O modules with built-in fuse protection for output channels.
Q2. What does the “F” mean in TBNF?
“F” stands for Fused, meaning the base includes individual fuses for protecting field circuits.
Q3. How many channels are fused?
It provides 8 fused channels, typically on even-numbered terminals.
Q4. What type of fuses are used?
It uses 5×20 mm replaceable fuses, commonly slow-blow type for industrial loads.
Q5. What modules is it used with?
Commonly used with output modules such as:
- 1794-OA8 / OA8I
- 1794-OW8 / OW8XT
Q6. Does it process signals or logic?
No, it only provides wiring and protection. All logic is handled by the I/O module.
Q7. What is the advantage over 1794-TBN?
- TBN: standard wiring base
- TBNF: adds per-channel fuse protection, improving safety and fault isolation
Q8. When should I use TBNF instead of other bases?
Use it when output protection is required, especially for AC loads, relays, or devices where short-circuit protection is critical.
Tags
Packing & Delivery
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.
