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- Allen Bradley
- 1794-OB16PXT
- ControlNet Flex I/O Adapter Module
- USA
- 94 mm × 94 mm × 69 mm
- 0.15kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
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- 24-Hour Service
- COO
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Allen-Bradley 1794-OB16PXT Technical Overview and Engineering Guide
1. Product Introduction
The 1794-OB16PXT is a FLEX I/O-XT 16-channel protected digital DC output module designed for distributed industrial automation systems operating in harsh or extended temperature environments.
It provides 16 sourcing output points operating at 24V DC, with built-in electronic protection designed to reduce damage caused by overload or short circuit conditions. The module is part of an extended-temperature FLEX I/O architecture, typically used in modular, remote I/O installations.
It is engineered for stable operation in demanding industrial environments such as outdoor installations, heavy machinery systems, and process industries where temperature fluctuations and electrical noise are common.
2. Product Parameters
Electrical Performance
| Parameter | Specification |
|---|---|
| Output Type | 16-point DC sourcing output |
| Rated Voltage | 24V DC nominal |
| Voltage Range | 24V DC (operating tolerance supported) |
| Output Current per Channel | 0.5 A |
| Total Output Current | 8.0 A |
| Output Type | Solid-state (transistor output) |
| Short-Circuit Protection | Electronic protection per channel |
| Switching Delay | ~0.5 ms |
| Leakage Current | Low off-state leakage |
| Power Dissipation | ~5 W |
| Thermal Dissipation | ~17 BTU/hr |
| Isolation | Basic electrical isolation |
Mechanical Parameters
| Parameter | Specification |
|---|---|
| Dimensions (H × W × D) | 94 mm × 94 mm × 69 mm |
| Weight | ~0.10–0.15 kg |
| Mounting Type | Terminal base mounted (FLEX I/O XT system) |
| Housing Type | Open industrial module housing |
| Wiring Interface | Screw-type terminal base connection |
| Status Indicators | 16 LED channel indicators |
Environmental Ratings
| Parameter | Specification |
|---|---|
| Operating Temperature | -20 °C to +70 °C |
| Storage Temperature | -40 °C to +85 °C |
| Protection Class | Industrial IP-rated enclosure (approx. IP54 level design intent) |
| Vibration Resistance | Industrial grade |
| Shock Resistance | Industrial grade |
| Humidity Resistance | Suitable for humid environments |
3. Product Features
The 1794-OB16PXT is designed with a focus on robustness and environmental adaptability:
- 16 high-density DC output channels in a compact module
- Extended temperature operation for harsh environments
- Built-in electronic protection against overload and short circuits
- LED indicators for each output channel for real-time status monitoring
- Modular plug-in design for fast replacement and maintenance
- Designed for distributed control systems with minimal wiring complexity
- Stable switching performance suitable for repetitive industrial cycles
Each channel operates independently, ensuring that a fault on one output does not necessarily affect the entire module.
4. Product Applications
This module is widely applied in industrial automation systems requiring reliable remote output control, such as:
- Outdoor industrial automation systems
- Oil and gas process control systems
- Mining and heavy machinery control panels
- Packaging and material handling systems
- Remote distributed I/O stations
- Conveyor and logistics automation
- Power plant auxiliary control systems
- Large-scale machine automation networks
Its extended temperature capability makes it especially suitable for installations where environmental control is limited or unavailable.
5. Product Advantages
- Extended temperature range enables harsh environment deployment
- High channel density reduces cabinet space requirements
- Integrated electronic protection improves system reliability
- Fast switching response supports real-time automation control
- Modular design simplifies replacement and maintenance
- LED diagnostics improve troubleshooting efficiency
- Reduced wiring complexity in distributed architectures
- Strong suitability for remote and unmanned installations
6. Series and Architecture Information
| Category | Description |
|---|---|
| Series | FLEX I/O XT (Extended Temperature Series) |
| System Type | Distributed modular I/O platform |
| Module Category | Digital DC output module |
| Architecture | Remote I/O with modular terminal base system |
The FLEX I/O XT series is an extended environmental version of the standard FLEX I/O system, designed specifically for applications requiring higher temperature resistance and improved durability.
7. Recommended Modules – Same Series or Related Models
| Model | Type | Function | Voltage | Weight (kg) | Dimensions |
|---|---|---|---|---|---|
| 1794-IB16PXT | Digital Input Module | 16-point protected input module | 24V DC | ~0.10 | 94×94×69 mm |
| 1794-OB16D | Diagnostic Output Module | 16-point diagnostic output module | 24V DC | ~0.12 | 94×94×69 mm |
| 1794-OB16A | Standard Output Module | Basic 16-point output module | 24V DC | ~0.11 | 94×94×69 mm |
| 1794-IE8XT | Analog Input Module | 8-channel analog input (XT series) | — | ~0.18 | 94×94×69 mm |
| 1794-OW8 | Relay Output Module | 8-point relay output module | 24V DC | ~0.20 | 94×94×69 mm |
8. Recommended Models – Same Brand Popular Modules
| Model | Type | Function | Voltage | Weight (kg) | Dimensions |
|---|---|---|---|---|---|
| 1756-OB16E | Control system output module | 16-channel high performance output | 24V DC | ~0.30 | 150×90×100 mm |
| 1756-IB16I | Control system input module | 16-channel isolated input module | 24V DC | ~0.30 | 150×90×100 mm |
| 1734-OB8 | Compact I/O output module | Small footprint 8-channel output | 24V DC | ~0.10 | 56×75×50 mm |
| 1769-IQ16 | Compact input module | 16-channel digital input module | 24V DC | ~0.25 | 118×87×40 mm |
| 1769-OB16 | Compact output module | 16-channel digital output module | 24V DC | ~0.25 | 118×87×40 mm |
9. Engineering Summary
The 1794-OB16PXT is engineered for harsh-environment distributed automation systems, where reliability and temperature resistance are critical design requirements.
Compared to standard FLEX I/O modules, the XT version offers extended temperature performance and improved durability for outdoor or heavy-duty industrial applications.
Its combination of high channel density, electronic protection, and modular architecture makes it a practical solution for modern decentralized control systems requiring long-term stability and reduced maintenance effort.