Efficient Power Distribution for SLC 500 Automation Platforms
The Allen Bradley 1746-P1 Power Supply Module is a reliable chassis-mounted power solution developed for the SLC 500 control system family. Designed to provide stable backplane power for processors, I/O modules, and communication devices, this module plays a critical role in maintaining system performance across industrial automation environments.
Its robust AC input design and dependable output capacity make it suitable for production facilities, process control systems, and machine automation applications where uninterrupted controller operation is essential. The 1746-P1 combines proven reliability with straightforward installation, helping support long-term operational stability in demanding industrial settings.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Allen Bradley |
| Model Number | 1746-P1 |
| Module Type | Power Supply Module |
| Product Family | SLC 500 |
| Input Voltage | 85–132 V AC |
| Nominal Input Voltage | 120 V AC |
| Input Frequency | 47–63 Hz |
| Input Power Capacity | Approx. 105 VA |
| Backplane Output Current (5 V DC) | 2 A |
| Backplane Output Current (24 V DC) | 0.46 A |
| Inrush Current | Approx. 20 A Peak |
| Power Loss | Approx. 15 W |
| Isolation Voltage | Industrial Isolation Design |
| Chassis Compatibility | SLC 500 Modular Chassis |
| Cooling Method | Natural Convection |
| Operating Temperature | 0°C to +60°C |
| Installation Type | Chassis Mounted |
Typical Applications
The 1746-P1 power supply module is widely used across industrial automation systems requiring stable power delivery for SLC 500 controllers and I/O infrastructure.
Common applications include:
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Manufacturing automation systems
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Packaging machinery
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Assembly line control platforms
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Material handling equipment
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Water and wastewater treatment facilities
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Food and beverage production systems
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Industrial process control environments
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Utility monitoring systems
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Machine control panels
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Infrastructure automation projects
Its dependable backplane power support helps ensure consistent controller and module performance throughout continuous production operations.
Operational Advantages
Stable Backplane Power Delivery
Provides regulated power for processors, communication modules, and I/O devices within SLC 500 systems.
Optimized for SLC 500 Platforms
Designed specifically for seamless integration with Allen Bradley SLC 500 chassis architectures.
Reliable Industrial Performance
Supports continuous-duty operation in demanding industrial environments where uptime is critical.
Efficient Power Capacity
Delivers sufficient output current to support multiple installed control modules within a single rack.
Simplified System Expansion
Allows flexible addition of I/O and communication modules while maintaining stable power distribution.
Durable Industrial Construction
Engineered for long service life with dependable electrical performance under varying operating conditions.
Easy Installation and Maintenance
Chassis-mounted design enables straightforward integration and efficient servicing during system maintenance cycles.
Technical FAQs
1. What is the primary function of the 1746-P1 module?
It supplies regulated backplane power for SLC 500 processors, I/O modules, and communication devices.
2. What input voltage does the module require?
The module operates on 85–132 V AC input power.
3. What is the nominal operating voltage?
Its nominal input voltage is 120 V AC.
4. How much 5 V DC backplane current can it provide?
The module provides up to 2 A of 5 V DC backplane current.
5. Does it supply 24 V DC power?
Yes, it provides approximately 0.46 A of 24 V DC output for system requirements.
6. Which control platform is it designed for?
It is specifically designed for Allen Bradley SLC 500 systems.
7. Can it support multiple I/O modules?
Yes, it is engineered to power processors and multiple installed modules within supported chassis configurations.
8. What cooling method does it use?
The module uses natural convection cooling without requiring additional internal fans.
9. Is it suitable for industrial environments?
Yes, it is designed for continuous industrial automation applications.
10. What is the key advantage of the 1746-P1?
It provides stable and dependable power distribution that helps maintain reliable PLC system operation.
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