Introduction
The Allen-Bradley 1756-PAR2K ControlLogix Redundant Power Supply Kit is intended for applications involving redundant power arrangements in industrial control systems. Power supply redundancy is an important consideration in facilities where unexpected power-related interruptions can affect production, process stability, or equipment availability.
In a ControlLogix installation, the correct redundancy configuration depends on the specific power supply hardware, chassis arrangement, and approved accessories. Selecting a compatible kit helps system integrators plan the power architecture and supports maintenance teams responsible for keeping installed automation equipment operational.
Before ordering the 1756-PAR2K, verify the exact catalog number and included components against the original equipment documentation. This is particularly important for replacement projects, where the existing hardware configuration may limit the available options.
Technical Specifications
Parameter | Specification |
|---|
Brand | Allen-Bradley |
Model | 1756-PAR2K |
Product Series | ControlLogix |
Product Type | Redundant Power Supply Kit |
Primary Function | Supports a compatible redundant power supply arrangement |
System Compatibility | ControlLogix configurations, subject to hardware compatibility |
Dimensions | 300 × 50 × 200 mm |
Weight | 0.907 kg (2.00 lb) |
Application | Industrial automation and control system power architecture |
Installation | Follow the manufacturer's instructions and approved configuration requirements |
Recommended Related Models
The following ControlLogix components may be relevant when planning or maintaining a compatible system. Verify the exact part numbers and their relationship to the 1756-PAR2K before selecting components.
1756-PA75R — ControlLogix Redundant Power Supply
1756-PB75R — ControlLogix Redundant Power Supply
1756-PA72 — ControlLogix AC Power Supply
1756-PB72 — ControlLogix DC Power Supply
1756-A10 — ControlLogix 10-Slot Chassis
1756-A13 — ControlLogix 13-Slot Chassis
1756-A17 — ControlLogix 17-Slot Chassis
Popular Related Models
1756-PAR2K — ControlLogix Redundant Power Supply Kit
1756-PA75R — ControlLogix Redundant Power Supply
1756-PB75R — ControlLogix Redundant Power Supply
1756-PA72 — ControlLogix AC Power Supply
1756-PB72 — ControlLogix DC Power Supply
1756-A10 — ControlLogix 10-Slot Chassis
1756-A13 — ControlLogix 13-Slot Chassis
Technical FAQs
Q1: What is the Allen-Bradley 1756-PAR2K?
The 1756-PAR2K is identified as a ControlLogix Redundant Power Supply Kit. Confirm the kit contents and intended configuration against the manufacturer's documentation for the exact catalog number.
Q2: What is the purpose of a redundant power supply system?
A redundant power supply system uses a designed arrangement of power supplies to help maintain power availability if one supply fails. The actual level of redundancy depends on the equipment, wiring, and system architecture.
Q3: Does installing a redundant power supply guarantee uninterrupted operation?
No. Redundancy can reduce certain power-related risks, but it does not eliminate every possible failure. Power distribution, chassis components, controllers, network devices, and other system elements must also be considered.
Q4: Which systems can use the 1756-PAR2K?
It is associated with the ControlLogix platform. Verify the supported chassis, power supply models, mounting arrangement, and hardware revisions before incorporating the kit into an installation.
Q5: Can the 1756-PAR2K be used with any ControlLogix power supply?
Compatibility should not be assumed. Confirm the approved power supply models and redundancy configuration in the product documentation before purchasing or installing the kit.
Q6: What should be checked before installation?
Review the kit's bill of materials, installation instructions, approved component combinations, mounting requirements, power ratings, and applicable safety procedures.
Q7: How can a redundant power supply arrangement be monitored?
Monitoring methods depend on the installed power supplies and system configuration. Check available status indicators, controller or system diagnostics, and any supported monitoring features described in the relevant documentation.
Q8: What are common causes of power supply redundancy faults?
Possible causes include a failed power supply, incorrect wiring, incompatible components, loss of an input power source, loose connections, or an improperly configured redundancy arrangement. Consult system diagnostics to identify the actual fault.
Q9: Is the 1756-PAR2K a complete power supply?
The catalog description identifies it as a kit rather than simply a standalone power supply. Verify its exact contents before ordering, especially if the project requires particular power supply units, cables, mounting hardware, or accessories.
Q10: What information is needed when sourcing a replacement kit?
Confirm the complete catalog number, required kit contents, existing power supply models, chassis configuration, hardware revision, and compatibility with the installed ControlLogix system.
