Allen-Bradley 1756-PA72 Power Supply
- Brand: Allen-Bradley
- Model Number: 1756-PA72
- Type: ControlLogix AC Power Supply Module
- Product Origin: >1
- Dimensions: 145 × 112 × 140 mm
- Weight: Approx. 1.0 kg
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Description
The Allen-Bradley 1756-PA72 is a ControlLogix AC power supply module manufactured by Rockwell Automation for supplying regulated backplane power to 1756 ControlLogix chassis systems. The module accepts an input voltage range of 85…265V AC at 47…63 Hz and delivers multiple regulated DC outputs including 5.1V DC @ 10A, 3.3V DC @ 4A, 1.2V DC @ 1.5A, and 24V DC @ 2.8A for ControlLogix controllers, communication modules, and I/O modules.
The power supply is designed for high-reliability industrial automation systems and installs directly on the left side of compatible 1756 chassis assemblies. It provides a maximum output power of 75 W at 0…60 °C operation and includes reinforced isolation protection rated at 250V continuous. The module supports large-scale ControlLogix architectures used in manufacturing, process automation, and distributed industrial control systems requiring stable backplane power distribution and long-term operational reliability.
Key Features of Allen-Bradley 1756-PA72 Power Supply
- ControlLogix AC chassis power supply
- Supports 85…265V AC input voltage range
- 47…63 Hz input frequency range
- Maximum output power of 75 W
- Provides regulated multi-voltage DC outputs
- 5.1V DC @ 10A output capacity
- 3.3V DC @ 4A output capacity
- 1.2V DC @ 1.5A output capacity
- 24V DC @ 2.8A output capacity
- Compatible with 1756 ControlLogix chassis systems
- Left-side chassis mounting configuration
- Reinforced isolation protection
- Supports large ControlLogix system architectures
- Industrial-grade rugged design
- Integrated overcurrent protection support
- High-reliability power regulation for PLC systems
- Compatible with redundant automation architectures
- Suitable for continuous industrial operation
- Supports ControlLogix controllers and I/O modules
- Designed for harsh industrial environments
Technical Specifications of Allen-Bradley 1756-PA72 Power Supply
| Parameter | Specification |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Product Family | ControlLogix 1756 Series |
| Model Number | 1756-PA72 |
| Product Type | AC Power Supply Module |
| Input Voltage | 120/240V AC Nominal |
| Input Voltage Range | 85…265V AC |
| Input Frequency | 47…63 Hz |
| Maximum Input Power | 100 VA / 100 W |
| Output Power | 75 W @ 0…60 °C |
| Output Current @ 5.1V DC | 10 A |
| Output Current @ 3.3V DC | 4 A |
| Output Current @ 1.2V DC | 1.5 A |
| Output Current @ 24V DC | 2.8 A |
| Inrush Current | 20 A Max |
| Isolation Voltage | 250V Continuous |
| Power Dissipation | 85.3 BTU/hr |
| Chassis Compatibility | 1756-A4, A7, A10, A13, A17 |
| Module Position | Left Side of Chassis |
| Mounting Type | Chassis Mounted |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | -40 to 85 °C |
| Dimensions | 145 × 112 × 140 mm |
| Weight | Approx. 1.0 kg |
Package Includes
Standard package contents generally include:
- 1 × Allen-Bradley 1756-PA72 Power Supply
- Industrial protective packaging
- Factory identification label
- Inspection or quality assurance documentation
- Anti-static protective covering
Origin, Dimensions & Weight
- Origin: >1
- Dimensions: 145 × 35 × 140 mm
- Weight: Approx. 1.0 kg
Applications
The Allen-Bradley 1756-PA72 Power Supply is commonly used in:
- ControlLogix PLC chassis systems
- Manufacturing automation systems
- Process control industries
- Oil and gas automation plants
- Water and wastewater treatment systems
- Automotive production facilities
- SCADA and distributed control systems
- Industrial machine automation
- Power generation and utility systems
- Material handling and conveyor systems
- Industrial retrofit and modernization projects
- Large-scale EtherNet/IP automation architectures
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