Products Description
| Company Information | |||
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| Mobile | +8613950166376 | ||
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Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | Allen-Bradley 1794-OB8 |
| Manufacturer | Rockwell Automation (Allen-Bradley) |
| Series | FLEX I/O 1794 |
| Product Type | DC Digital Output Module |
| Function | 8-point DC sourcing output module |
| Output Channels | 8 points |
| Output Type | 24 VDC sourcing (PNP) |
| Output Voltage Range | 10 to 31.2 VDC |
| Nominal Output Voltage | 24 VDC |
| Output Current | 0.5 A per channel |
| Total Module Current | ~4 A (combined) |
| Output Configuration | 1 group of 8 outputs |
| Leakage Current (OFF state) | ≤ 0.5 mA |
| Voltage Drop (ON state) | ≤ 0.5 V |
| Isolation | 50 V continuous (field to system) |
| Backplane Current | ~60 mA @ 5 VDC |
| Power Dissipation | ~3.3–3.5 W max |
| Indicators | 8 channel status LEDs |
| Wiring Base | 1794-TB2 / TB3 / TB3S compatible |
| Mounting Type | DIN rail |
| Enclosure Rating | IP20 |
| Operating Temperature | 0 to 55 °C |
| Storage Temperature | -40 to 85 °C |
| Humidity | 5 to 95% non-condensing |
| Physical Dimensions (L × W × H) | ~6.3 × 10.0 × 5.4 cm |
| Weight | ~0.10–0.13 kg |
FAQ
FAQ
Q1. What is the main function of the 1794-OB8?
It is a FLEX I/O module used to control 8 DC output devices such as relays, solenoids, and indicator lights.
Q2. How many output channels does it have?
It provides 8 independent digital output channels.
Q3. What type of outputs does it provide?
It provides 24 VDC sourcing (PNP) outputs, suitable for standard industrial DC loads.
Q4. What is the output current capacity?
Each channel supports up to 0.5 A, with a total module capacity of about 4 A.
Q5. Does it include protection features?
It includes basic short-circuit protection and status indication, but no advanced diagnostics like OB16D.
Q6. How is it different from OB16?
The OB8 has fewer channels (8 vs 16), making it suitable for smaller or space-limited applications.
Q7. What is the operating temperature range?
It operates from 0 °C to 55 °C in standard industrial environments.
Q8. What applications is it typically used for?
It is used in distributed I/O systems for machine control, packaging lines, and general automation where moderate output density is required.
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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.
