Excellent PLC
Product Introduction
The Allen Bradley 1756-PH75 ControlLogix DC Power Supply is a high-performance DC input module designed to deliver regulated backplane power for ControlLogix automation systems. It accepts a wide DC input range of 90–143 VDC and converts it into a stable 75-watt output suitable for powering controllers, communication modules, and I/O cards installed in the chassis.
This power supply is particularly suited for industrial applications where higher-voltage DC power distribution is already present, such as substations, renewable energy facilities, or heavy manufacturing plants. The 1756-PH75 ensures reliable operation of the ControlLogix chassis, providing consistent power delivery that prevents unexpected module resets or communication interruptions.
Its compact design allows installation on the left side of the ControlLogix chassis, and it operates automatically without programming, delivering stable internal energy to support critical automation operations.
Product Specifications
| Parameter | Description |
|---|---|
| Product Name | Allen Bradley 1756-PH75 |
| Series | ControlLogix |
| Type | DC Input Power Supply |
| Input Voltage Range | 90–143 V DC |
| Rated Output Power | 75 W |
| Backplane Output | Regulated DC for ControlLogix chassis |
| Mounting Position | Left side of chassis |
| Protection Features | Overcurrent protection and internal fault protection |
| Isolation | Input-to-backplane electrical isolation |
| Cooling Method | Convection cooling |
| Operating Environment | Industrial control cabinets |
| Dimensions | 140 x 112 x 145 mm |
| Weight | 0.95 kg |
Applications
• High-Voltage DC Systems where the facility provides 90–143 VDC distribution.
• Process Control and Automation Plants such as chemical, oil & gas, and energy production facilities.
• Material Handling and Manufacturing Systems requiring reliable DC backplane power.
• Large-Scale Distributed Control Systems with multiple I/O modules and controllers.
• Infrastructure and Utility Automation where stable power delivery is critical to operational reliability.
Advantages
• Wide Input Voltage Range — Supports 90–143 VDC, making it suitable for high-voltage DC environments.
• Stable 75 W Output — Provides consistent power to the chassis, supporting multiple installed modules.
• Reliable Backplane Regulation — Minimizes risk of controller resets or communication failures.
• Integrated Protection Mechanisms — Includes overcurrent limiting and fault protection for safe operation.
• Industrial-Grade Design — Built to operate reliably in harsh control cabinet environments.
• Compact and Easy Integration — Fits standard ControlLogix chassis without additional configuration.
