High-Capacity DC Power Management for Advanced SLC 500 Control Systems
The Allen Bradley 1746-P4 Power Supply Module is a high-performance industrial power unit designed to provide stable and efficient backplane power for SLC 500 automation platforms. Built for applications that require dependable DC-powered control architecture, this module delivers strong output capacity to support processors, communication modules, and extensive I/O configurations.
With its robust design and reliable voltage regulation capabilities, the 1746-P4 is well suited for demanding industrial environments where system availability, control stability, and long-term operational efficiency are critical. Its ability to support larger rack configurations makes it a preferred solution for complex automation systems requiring expanded power resources.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Allen Bradley |
| Model Number | 1746-P4 |
| Module Type | Power Supply Module |
| Product Family | SLC 500 |
| Input Voltage Range | 85–132 V AC / 170–265 V AC |
| Nominal Input Voltage | 120/240 V AC |
| Input Frequency | 47–63 Hz |
| Input Power Capacity | Approx. 180 VA |
| Backplane Output Voltage | 5 V DC |
| 5 V DC Backplane Current | 10 A |
| 24 V DC User Power Output | 2.88 A |
| Inrush Current | Approx. 25 A Peak |
| Power Loss | Approx. 20 W |
| Electrical Isolation | Industrial Backplane Isolation Design |
| Cooling Method | Natural Convection |
| Chassis Compatibility | SLC 500 Modular Chassis |
| Installation Type | Chassis Mounted |
| Operating Temperature | 0°C to +60°C |
Industrial Applications
The 1746-P4 power supply module is widely deployed in industrial automation systems that require increased power capacity for larger control architectures.
Typical applications include:
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High-density manufacturing automation systems
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Automotive production facilities
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Process control installations
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Material handling and logistics systems
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Power generation support systems
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Water and wastewater treatment plants
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Industrial packaging machinery
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Chemical processing facilities
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Infrastructure automation projects
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Large-scale OEM equipment platforms
Its higher current output allows reliable support for extensive I/O configurations and communication-intensive control systems.
Core Advantages
High Backplane Power Capacity
Provides substantial 5 V DC output current, supporting larger SLC 500 system configurations with multiple installed modules.
Flexible AC Input Support
Operates on both 120 V AC and 240 V AC power systems, offering installation flexibility across industrial environments.
Reliable Voltage Regulation
Maintains stable power delivery to processors and I/O modules, helping improve overall system performance.
Optimized for Expansion
Supports complex automation architectures requiring higher power availability and future scalability.
Industrial-Grade Reliability
Designed for continuous operation in demanding production and process control environments.
Efficient Power Distribution
Delivers balanced backplane and user-side power for enhanced system stability.
Simplified Integration
Installs directly into SLC 500 chassis systems, reducing setup time and supporting efficient maintenance procedures.
Technical FAQs
1. What is the primary function of the 1746-P4 module?
It supplies regulated backplane power for Allen Bradley SLC 500 automation systems.
2. What input voltages does the module support?
It supports both 120 V AC and 240 V AC industrial power systems.
3. How much 5 V DC backplane current can it provide?
The module delivers up to 10 A of 5 V DC backplane current.
4. Does it provide auxiliary 24 V DC power?
Yes, it supplies up to 2.88 A of 24 V DC user power.
5. Which PLC platform uses this module?
It is specifically designed for the Allen Bradley SLC 500 series.
6. Is it suitable for large I/O systems?
Yes, its high-current design makes it ideal for expanded SLC 500 configurations.
7. What cooling method is used?
The module utilizes natural convection cooling without internal fans.
8. Can it support communication and processor modules simultaneously?
Yes, it is engineered to power processors, communication modules, and multiple I/O devices within supported limits.
9. Is the module intended for industrial environments?
Yes, it is built for continuous-duty industrial automation applications.
10. What is the major advantage of the 1746-P4?
Its high power capacity supports larger and more demanding SLC 500 automation systems with excellent operational stability.
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