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- Allen Bradley
- 1746-OB16E
- PLC Module/Rack
- USA
- 145 × 35 × 140 mm
- 0.45kg
- Xiamen, China
- New & In Stock
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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.
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-OB16E Detailed Technical Overview
1. Product Overview
The Allen-Bradley 1746-OB16E is a 16-point DC sourcing output module used in the SLC 500 PLC system. It is designed to provide 24V DC output signals to control industrial field devices such as solenoid valves, relays, pilot lamps, alarms, and small actuators.
Unlike sinking-type modules, the 1746-OB16E sources current to the load, meaning it supplies the positive voltage to the field device. This makes it suitable for systems designed with common negative (0V) wiring architecture.
The module is widely used in factory automation and machine control systems requiring multiple DC outputs in a compact PLC configuration.
2. Brand Information
- Brand: Allen-Bradley
- Industry: Industrial automation and PLC systems
- Product Type: DC sourcing digital output module
The brand is known for robust industrial PLC hardware designed for stable operation in harsh manufacturing environments.
3. Product Series
- Series: SLC 500
- Category: Digital output module
- Type: DC sourcing output module
The SLC 500 platform is a modular PLC system. The 1746-OB16E is designed to provide high-density DC output control in this architecture.
4. Technical Parameters
Core Specifications Table
| Parameter | Value |
|---|---|
| Model | 1746-OB16E |
| Module Type | DC Digital Output |
| Series | SLC 500 |
| Number of Outputs | 16 |
| Output Type | Sourcing transistor output |
| Output Voltage Range | 10–30 V DC |
| Nominal Voltage | 24 V DC |
| Output Current per Point | 0.5 A typical |
| Maximum Module Current | 8 A total |
| Switching Device | Transistor |
| Turn-On Time | ~1–2 ms |
| Turn-Off Time | ~1 ms |
| Off-State Leakage Current | ≤1 mA |
| On-State Voltage Drop | ~1.2 V DC |
| Backplane Current (5V) | ~135–280 mA |
| Isolation Voltage | 1500 V AC |
| Protection | Group fused outputs |
| Load Type | DC resistive / inductive 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) | 0.20 – 0.45 kg |
5. Product Functions and Applications
Functional Description
- Converts PLC logic signals into DC sourcing outputs
- Provides positive voltage to field devices
- Controls multiple DC loads simultaneously
- Supports fast transistor switching for real-time control
- Enables compact high-density output integration
Typical Applications
- Industrial automation control panels
- Conveyor and packaging systems
- Solenoid valve control systems
- Relay and contactor driving circuits
- Indicator lamps and alarm systems
- Machine-level DC actuator control
6. Product Advantages
1. High Output Density
Sixteen outputs in a single module reduce cabinet space and wiring complexity.
2. Sourcing Output Design
Simplifies wiring in systems designed with common ground architecture.
3. Fast Switching Performance
Millisecond-level response ensures precise control timing.
4. Solid-State Reliability
No mechanical wear, ensuring long service life.
5. Strong Electrical Isolation
Improves system safety and reduces electrical noise impact.
7. Recommended Models (Same Series or Related)
SLC 500 Series Related Modules
| Model | Type | Channels | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746-OB8 | DC Output | 8 | 24V DC | 145 × 35 × 140 | 0.30 |
| 1746-OB16 | DC Output | 16 | 24V DC | 145 × 35 × 140 | 0.34 |
| 1746-OB32 | DC Output | 32 | 24V DC | 145 × 35 × 140 | 0.36 |
| 1746-OA16 | AC Output | 16 | 120/240 VAC | 145 × 35 × 140 | 0.45 |
| 1746-OW16 | Relay Output | 16 | AC/DC Relay | 145 × 35 × 140 | 0.50 |
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 |