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- Allen Bradley
- 1746-OBP16
- PLC Module/Rack
- USA
- 145 × 35 × 140
- 0.45kg
- Xiamen, China
- New & In Stock
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Allen-Bradley 1746-OBP16 Detailed Technical Overview
1. Product Overview
The Allen-Bradley 1746-OBP16 is a 16-point DC digital output module designed for the SLC 500 PLC system. It is part of the “protected output” (P) series, meaning it includes built-in electronic protection against overload and short-circuit conditions.
This module is used to drive 24V DC field devices such as solenoid valves, relays, indicator lamps, alarms, and small actuators. It provides reliable switching performance while reducing the need for external fusing in many industrial applications.
The 1746-OBP16 is widely used in factory automation systems where stable DC output control and integrated protection are required.
2. Brand Information
- Brand: Allen-Bradley
- Industry: Industrial automation and PLC control systems
- Product Type: Protected DC digital output module
The brand is known for rugged PLC systems designed for long-term operation in demanding industrial environments.
3. Product Series
- Series: SLC 500
- Category: Digital output module
- Type: DC protected output module
The SLC 500 system is a modular PLC platform. The 1746-OBP16 belongs to its electronically protected output family, offering enhanced safety and reliability.
4. Technical Parameters
Core Specifications Table
| Parameter | Value |
|---|---|
| Model | 1746-OBP16 |
| Module Type | DC Digital Output (Protected) |
| Series | SLC 500 |
| Number of Outputs | 16 |
| Output Type | Sourcing transistor (electronically protected) |
| Output Voltage Range | 10–30 V DC |
| Nominal Voltage | 24 V DC |
| Output Current per Point | 0.5 A typical |
| Output Current per Module | 8 A max |
| Switching Device | Transistor with electronic protection |
| Turn-On Time | ~1–2 ms |
| Turn-Off Time | ~1 ms |
| Backplane Current (5V) | ~135–280 mA |
| Backplane Current (24V) | 0 mA |
| On-State Voltage Drop | ~1.2 V DC |
| Off-State Leakage Current | ≤1 mA |
| Protection Function | Overload + short-circuit electronic protection |
| Surge Current Capability | Limited by electronic protection circuit |
| Load Type | DC inductive / resistive loads |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5–95% non-condensing |
| Dimensions (mm) | 145 × 35 × 140 |
| Weight (kg) | ~0.32 – 0.45 kg |
5. Product Functions and Applications
Functional Description
- Converts PLC digital signals into DC output switching
- Provides integrated electronic protection for each output group
- Controls external 24V DC devices directly
- Supports fast switching for real-time industrial control
- Reduces need for external fuses or protective relays
Typical Applications
- Industrial automation control panels
- Packaging and conveyor systems
- Solenoid valve actuation systems
- Relay and contactor control circuits
- Alarm and indicator systems
- Machine-level DC output control applications
6. Product Advantages
1. Built-in Electronic Protection
Each output group is protected against overload and short circuit without external fuses.
2. High Reliability
Solid-state design eliminates mechanical wear and improves service life.
3. Compact High-Density Design
Sixteen output channels reduce cabinet space and wiring complexity.
4. Fast Switching Performance
Millisecond-level response supports precise automation control.
5. Improved System Safety
Protection circuitry reduces risk of damage to PLC and field devices.
7. Recommended Models (Same Series or Related)
SLC 500 Series Related Modules
| Model | Type | Channels | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746-OB16 | DC Output | 16 | 24V DC | 145 × 35 × 140 | 0.34 |
| 1746-OB16E | DC Output | 16 | Sourcing | 145 × 35 × 140 | 0.35 |
| 1746-OB16/D | DC Output | 16 | DC Transistor | 145 × 35 × 140 | 0.39 |
| 1746-OB8 | DC Output | 8 | 24V DC | 145 × 35 × 140 | 0.39 |
| 1746-OA16 | AC Output | 16 | 120/240 VAC | 145 × 35 × 140 | 0.45 |
8. Recommended Popular Models (Same Brand)
Popular Automation Modules
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|---|---|---|---|---|---|
| 1756-L73 | Controller | — | 5V DC | 150 × 140 × 130 | 0.36 |
| 1769-L36ERM | Compact Controller | — | 24V DC | 120 × 90 × 70 | 0.30 |
| 1734-IE8C | Analog Input | 8 | 4–20 mA | 75 × 12 × 60 | 0.16 |
| 1769-OF8C | Analog Output | 8 | 0–10 V | 118 × 87 × 35 | 0.30 |
| 1756-EN2T | Ethernet Module | — | 5V DC | 150 × 140 × 130 | 0.32 |