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- Allen Bradley
- 1746-OW16
- PLC Module/Rack
- USA
- 251 × 171 × 54 mm
- 0.53kg
- 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.
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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 1746-OW16 Detailed Technical Overview
1. Product Overview
The Allen-Bradley 1746-OW16 is a 16-point relay output module designed for the SLC 500 PLC system. It provides dry-contact relay outputs capable of switching both AC and DC loads, making it one of the most flexible output modules in the SLC 500 family.
Unlike transistor output modules, the 1746-OW16 uses mechanical relays, which allow it to directly control higher voltage devices without requiring additional interface relays. It is widely used in industrial automation systems where mixed-voltage load control is required.
Each output is isolated and grouped, enabling flexible wiring configurations for different voltage domains.
2. Brand Information
- Brand: Allen-Bradley
- Industry: Industrial automation and PLC systems
- Product Type: Relay output module
The brand is widely used in industrial control systems due to its long-term reliability and strong compatibility with PLC architectures.
3. Product Series
- Series: SLC 500
- Category: Digital output module
- Type: Relay contact output module
The SLC 500 system is a modular PLC platform. The 1746-OW16 is part of its relay-based output family designed for high-voltage and mixed-load applications.
4. Technical Parameters
Core Specifications Table
| Parameter | Value |
|---|---|
| Model | 1746-OW16 |
| Module Type | Relay Output Module |
| Series | SLC 500 |
| Number of Outputs | 16 |
| Output Type | Normally Open relay contacts |
| Output Groups | 2 groups (8 points each) |
| Switching Voltage | 5–265 VAC / 5–125 VDC |
| Continuous Current | 2.5 A per point (AC) / 2.0 A (24V DC) |
| Max Load Current | 1.5 A @ 120 VAC / 1.2 A @ 24 VDC |
| Contact Form | Form A (NO) |
| Relay Life (typical) | 100,000–300,000 operations under load |
| Turn-On Time | ~10 ms |
| Turn-Off Time | ~10 ms |
| Backplane Current (5V) | ~170 mA |
| Backplane Current (24V) | ~180 mA |
| Isolation Voltage | 1500 V AC |
| Load Type | AC and DC mixed loads |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5–95% non-condensing |
| Dimensions (mm) | 251 × 171 × 54 |
| Weight (kg) | ~0.53 kg |
5. Product Functions and Applications
Functional Description
- Provides relay-based switching for AC and DC loads
- Supports mixed-voltage control in a single module
- Eliminates need for external interposing relays in many cases
- Provides electrical isolation between PLC and field devices
- Enables direct switching of higher-voltage industrial loads
Typical Applications
- Industrial automation control panels
- Motor starter and contactor control circuits
- HVAC and building automation systems
- Lighting and alarm control systems
- Mixed AC/DC industrial load switching
- Machine control systems requiring relay isolation
6. Product Advantages
1. Multi-Voltage Capability
Supports both AC and DC loads in the same module.
2. High Load Flexibility
Can directly switch higher voltage and higher current circuits.
3. Electrical Isolation
Relay contacts provide strong isolation between PLC and field wiring.
4. Simple Wiring Architecture
Reduces need for external relays or interface modules.
5. Proven Industrial Reliability
Widely used in legacy automation systems with long operational history.
7. Recommended Models (Same Series or Related)
SLC 500 Series Related Modules
| Model | Type | Channels | Output Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746-OW8 | Relay Output | 8 | AC/DC Relay | 145 × 35 × 140 | 0.40 |
| 1746-OW16E | Relay Output | 16 | Enhanced relay | 251 × 171 × 54 | 0.52 |
| 1746-OB16 | DC Output | 16 | 24V DC | 145 × 35 × 140 | 0.34 |
| 1746-OB16E | DC Output | 16 | Sourcing | 145 × 35 × 140 | 0.35 |
| 1746-OV16 | DC Output | 16 | Sinking | 145 × 35 × 140 | 0.48 |
8. Recommended Popular Models (Same Brand)
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