Rockwell (Allen-Bradley) 1746-P2 Power Supply — Reliable and Efficient Power for SLC 500 PLC Systems
Every automation system depends on stable and consistent power. When power delivery falters, even the most advanced control systems lose reliability. That is why the Rockwell Automation (Allen-Bradley) 1746-P2 Power Supply plays a crucial role in ensuring uninterrupted performance within SLC 500 PLC systems. Designed for demanding industrial environments, this power supply offers clean, regulated power that keeps your automation system running smoothly at all times.
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1. Overview of the Rockwell 1746-P2 Power Supply
The 1746-P2 is an essential component in the Allen-Bradley SLC 500 family, providing regulated DC power to system modules and controllers. It ensures that each module receives consistent voltage and current levels, which directly influences the stability and accuracy of industrial processes.
With a design that emphasizes efficiency, safety, and longevity, the 1746-P2 guarantees smooth operation even under fluctuating load conditions. Because it connects directly to the chassis, it supplies clean power to the backplane without external wiring complexity. Engineers choose the 1746-P2 when they need a reliable, high-performance power source for small to medium automation systems.
2. Technical Specifications
| Feature | Description |
|---|---|
| Input Voltage | 85–264V AC, 47–63 Hz |
| Output Voltage | 5V DC and 24V DC |
| Output Current | 5V DC at 8A, 24V DC at 2A |
| Power Capacity | 1746 Modular Chassis up to 16 Slots |
| Isolation Voltage | 1500V AC |
| Operating Temperature | 0–60°C |
| Storage Temperature | -40–85°C |
| Mounting Type | Direct to SLC 500 Chassis |
| Weight | Approximately 2.2 kg |
These specifications reveal how the 1746-P2 balances robust power output with compact size and efficient heat dissipation.
3. Features and Advantages
Stable Power Delivery
The 1746-P2 provides regulated 5V and 24V DC outputs for SLC 500 modules. This ensures consistent voltage for logic circuits and peripheral devices. Because power fluctuations can cause data loss or control errors, this stability is critical in industrial automation systems.
Wide Input Range
The unit accepts a broad AC input range from 85V to 264V, making it suitable for various industrial power standards. As a result, users can deploy it worldwide without additional converters or modifications.
Compact and Modular Design
Since the 1746-P2 mounts directly onto the SLC 500 chassis, installation is simple and efficient. Its modular design saves panel space and allows engineers to expand systems easily without redesigning power distribution.
Enhanced Efficiency
The internal power conversion circuitry reduces energy loss, improving operational efficiency and lowering overall system costs. Moreover, the power supply produces minimal heat, contributing to system longevity.
High Safety Standards
Rockwell designed the 1746-P2 with integrated overcurrent and thermal protection. These safeguards prevent damage to PLC modules, ensuring continuous and safe operation even in demanding environments.
LED Status Indicators
Front-panel LED indicators allow engineers to monitor operating conditions quickly. These lights provide instant information about power status, simplifying maintenance and reducing downtime.
4. Typical Applications
Because the Rockwell 1746-P2 Power Supply combines stability, efficiency, and compactness, it serves a wide range of industrial fields:
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Manufacturing Automation: Provides power for SLC 500 controllers and I/O modules managing assembly lines and robotic systems.
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Process Control: Supports analog and digital modules in monitoring temperature, pressure, and flow signals across chemical or food processing plants.
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Energy Management: Supplies reliable voltage to control panels in power distribution and renewable energy systems.
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Water and Wastewater Treatment: Ensures uninterrupted power for control logic and motor-driven components in treatment facilities.
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Building Automation: Powers HVAC, lighting, and environmental systems requiring consistent control performance.
In every environment, the 1746-P2 ensures seamless operation by maintaining reliable power to the entire control system.
5. Installation and Integration
Installing the 1746-P2 is straightforward. Engineers attach the power supply directly to the left side of the SLC 500 chassis and secure it with mounting screws. Then, they connect the AC power source to the terminal block and verify LED indicators for operational readiness.
Since it integrates seamlessly with the SLC 500 system, there is no need for special configuration software. The module automatically provides regulated power to all slots in the chassis. This direct and efficient connection minimizes wiring complexity and reduces potential points of failure.
Furthermore, because Rockwell maintains global standards for its components, integrating the 1746-P2 with other Rockwell Automation devices ensures full compatibility and optimal performance.
6. Reliability and Durability
Industrial environments often experience voltage fluctuations, temperature variation, and electrical interference. The 1746-P2 is designed to handle these challenges with ease. Its reinforced circuitry and high-quality components maintain stable output, even when input conditions change.
Additionally, its cooling system ensures heat is efficiently dissipated, keeping internal components at safe operating temperatures. Because of this design, the 1746-P2 achieves a long operational lifespan and supports continuous 24/7 operation — a requirement in modern automation systems.
Every aspect of this module reflects Rockwell’s engineering expertise and commitment to industrial-grade reliability.
7. Why Choose Wuhan Yuli Automation Technology Co., Ltd.
When you need authentic Rockwell Automation products, Wuhan Yuli Automation Technology Co., Ltd. offers professional solutions and trusted quality. The company specializes in supplying automation components such as PLCs, I/O modules, sensors, and drives.
Through www.ayingo.com, you can easily find the 1746-P2 Power Supply and other Rockwell Automation modules. Wuhan Yuli Automation provides:
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Genuine, certified Rockwell Automation products
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Competitive global pricing and fast logistics
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Expert technical advice and support
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Comprehensive solutions for industrial automation projects
The company’s dedication to customer satisfaction and product authenticity makes it a preferred supplier in the automation field.
8. Conclusion
The Rockwell (Allen-Bradley) 1746-P2 Power Supply delivers the stable, clean, and efficient power that modern automation systems demand. Its compact design, robust performance, and global compatibility make it an excellent choice for both new installations and upgrades.
Because reliable power defines control reliability, engineers and plant operators rely on the 1746-P2 to keep their SLC 500 PLC systems performing at their best.
For more information or to purchase this product, visit www.ayingo.com — the official website of Wuhan Yuli Automation Technology Co., Ltd., your trusted global partner for industrial automation solutions.



