



The Allen-Bradley 1756-CPR2 is a redundant power supply cable used in the ControlLogix PLC system from Rockwell Automation. It is designed to connect a redundant power supply system to the ControlLogix chassis adapter, enabling reliable power distribution in high-availability automation systems.
This cable is typically used in systems where power redundancy is required to prevent downtime, ensuring continuous PLC operation in critical industrial environments such as manufacturing, oil & gas, and power generation.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Redundant Power Supply Cable |
| Model | 1756-CPR2 |
| System Compatibility | Allen-Bradley ControlLogix |
| Cable Length | 0.91 m (1 m class) |
| Connector Type | 14-pin male to 14-pin female |
| Function | Connect redundant power supply to chassis adapter |
| Rated Voltage | 24 V DC |
| Rated Current | Up to 10 A |
| Shielding | Yes |
| Installation Type | Plug-in cable assembly |
| Operating Temperature | 0°C to 60°C |
The cable provides a secure electrical connection between redundant power supply units and the ControlLogix chassis power interface.
Physical Dimensions & Weight
- Cable Length: 0.91 m (approx. 1 m)
- Weight: ~0.3–1.0 kg (depends on packaging)
The cable is flexible and designed for cabinet wiring between power modules and chassis adapters in ControlLogix systems.
Function in ControlLogix System
The 1756-CPR2 is used to:
- Connect redundant power supply modules to chassis adapter
- Enable power redundancy architecture in ControlLogix systems
- Ensure continuous power delivery during supply failure
- Support high-availability PLC configurations
- Improve system reliability in critical industrial applications
Recommended Related Models
- Allen-Bradley 1756-PA75 Power Supply Module
- Allen-Bradley 1756-PB75 Redundant Power Supply Module
- Allen-Bradley 1756-PCSA2 Chassis Adapter
- Allen-Bradley 1756-A4 / A7 / A13 Chassis
- Allen-Bradley ControlLogix CPU modules (1756-L7x / L8x)