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- Allen Bradley
- 1746-OX8/A
- PLC Module/Rack
- USA
- 145 × 35 × 130 mm
- 0.5kg
- Xiamen, China
- New & In Stock
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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-OX8/A — Detailed Technical Overview
1. Product Introduction
The Allen Bradley 1746-OX8/A is a digital relay output module designed for the SLC 500 PLC platform. The “/A” revision represents an early and widely deployed hardware version known for its stable performance in industrial environments.
This module provides eight relay output channels, each configured as normally open contacts. It is designed to switch both AC and DC loads, offering flexibility in controlling a wide range of field devices. Unlike transistor or triac outputs, relay-based outputs allow the module to handle mixed voltage types and provide strong electrical isolation between the control system and the load.
The module is installed directly into the SLC 500 chassis and communicates with the processor via the backplane. Its relay design ensures reliable switching even under varying electrical conditions, making it suitable for diverse industrial control applications.
2. Product Parameters
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 1746-OX8/A |
| Series | SLC 500 |
| Module Type | Digital Relay Output Module |
| Number of Outputs | 8 |
| Output Type | Relay (Normally Open Contacts) |
| Operating Voltage | 5–265 V AC / 5–125 V DC |
| Continuous Current per Output | Up to 2 A |
| Maximum Current per Module | Approx. 8 A |
| Inrush Current | Up to 10 A (short duration) |
| Minimum Load Current | ≥ 1 mA |
| Contact Type | Mechanical relay |
| Output Delay (ON/OFF) | Approx. 8–12 ms |
| Contact Life | Mechanical: millions of operations (load dependent) |
| Backplane Current | Approx. 0.085 A @ 5V DC |
| Power Dissipation | Approx. 3–5 W |
| Isolation | Relay isolation between field and logic |
| Wiring | Screw terminal connections |
| Status Indicators | 8 LEDs (per channel) |
| Operating Temperature | 0 to 60°C |
| Installation Type | Rack-mounted |
| Dimensions (mm) | 145 × 35 × 130 |
| Weight (kg) | 0.3 – 0.5 kg |
3. Product Applications
The 1746-OX8/A is widely used in automation systems where flexible switching of AC and DC loads is required.
Typical applications include:
- Switching motors, heaters, and lighting circuits
- Controlling relays, solenoids, and contactors
- Interfacing PLC systems with high-voltage equipment
- Packaging and assembly machinery
- Conveyor and material handling systems
- Industrial systems requiring mixed AC/DC output control
Its relay-based design makes it particularly suitable for applications where load types vary or require electrical isolation.
4. Product Advantages
Flexible Voltage Compatibility
Supports both AC and DC loads, allowing use in diverse applications.
Strong Electrical Isolation
Relay contacts provide effective separation between control and field circuits.
Versatile Switching Capability
Handles a wide range of voltages and load types.
Reliable Mechanical Design
Built for stable operation with consistent switching performance.
Clear Status Indication
LED indicators for each channel simplify diagnostics and troubleshooting.
Wide Application Range
Suitable for both low-power and moderate-power switching tasks.
Proven Industrial Use
The /A revision has been widely used and tested in various industrial environments.
5. Brand Information
Allen Bradley is widely recognized in industrial automation for its PLC systems, I/O modules, and control equipment.
Its products are used in manufacturing, process industries, and infrastructure systems due to their reliability and long operational life.
6. Product Series
- Series Name: SLC 500
- Category: Relay Output Module
The SLC 500 series is a modular PLC platform designed for flexible system configuration and dependable industrial control. It supports a wide variety of digital, analog, and specialty modules.
7. Recommended Models (Same Series / Related)
Related Models Table
| Model | Function | Outputs | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746-OX8 | Digital Output | 8 | Relay | 145 × 35 × 130 | 0.35 kg |
| 1746-OW8 | Digital Output | 8 | Relay | 145 × 35 × 130 | 0.35 kg |
| 1746-OW16 | Digital Output | 16 | Relay | 145 × 35 × 130 | 0.4 kg |
| 1746-OA8 | Digital Output | 8 | 120V AC | 145 × 35 × 130 | 0.3 kg |
| 1746-OB16 | Digital Output | 16 | 24V DC | 145 × 35 × 130 | 0.3 kg |
8. Recommended Popular Models (Same Brand)
Popular Models Table
| Model | Series | Function | Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1756-OW16I | ControlLogix | Digital Output | Relay | 140 × 112 × 145 | 0.6 kg |
| 1756-OA16 | ControlLogix | Digital Output | AC | 140 × 112 × 145 | 0.6 kg |
| 1769-OW16 | CompactLogix | Digital Output | Relay | 118 × 87 × 140 | 0.6 kg |
| 1769-OA16 | CompactLogix | Digital Output | AC | 118 × 87 × 140 | 0.5 kg |
| 1606-XLS240E | Power Supply | DIN Rail PSU | 24V DC | 123 × 50 × 125 | 0.8 kg |