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1756-PAR2

1756-PAR2 AC Power Supply Kit Allen-Bradley | Rockwell

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  • Manufacturer: Allen-Bradley

  • Product No.: 1756-PAR2

  • Product Type: Power Supply Kit

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 2000g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

Allen-Bradley 1756-PAR2 ControlLogix Redundant Power Supply Kit

The Allen-Bradley 1756-PAR2 is a complete redundant power supply solution for ControlLogix systems. This kit from Rockwell Automation ensures maximum uptime for critical applications. It provides seamless power backup to prevent costly system shutdowns. The bundle contains all necessary components for a straightforward setup.

Kit Contents & Core Specifications

  • Brand & Manufacturer: Allen-Bradley / Rockwell Automation
  • Model & Series: 1756-PAR2 (ControlLogix Redundant Power Supply Kit)
  • Package Includes: Two (2) 1756-PA75R AC Power Supplies.
  • Package Includes: Two (2) 1756-CPR2 Redundant Power Supply Cables (3 ft/0.91 m each).
  • Package Includes: One (1) 1756-PSCA2 Chassis Adapter Module.
  • Input Voltage Range: 85 - 265 VAC, for wide global compatibility.
  • Input Frequency: 47 - 63 Hz, supporting both 50Hz and 60Hz systems.
  • Maximum Output Power: 75 Watts per power supply.
  • Output Current Capacities: 13A @ 5.1VDC, 4A @ 3.3VDC, 2.8A @ 24VDC, 1.5A @ 1.2VDC.

Performance & Safety Features

  • Redundancy Design: Two supplies work together for continuous, failsafe power.
  • Hold-up Time: 2 full power cycles after input loss (at 50/60 Hz).
  • Maximum Inrush Current: 20 Amperes, with internal current limiting.
  • Isolation Voltage: 250V continuous (reinforced insulation).
  • Dielectric Strength Test: Type tested at 3250V DC for 60 seconds.
  • Annunciator Output: Provides 240V AC/DC for remote status indication.
  • High Reliability: Built for critical applications requiring minimal downtime risk.

Installation Guide & Compatibility

  • Compatible Chassis: ControlLogix 1756-A4, A7, A10, A13, and A17 (Series B).
  • Mount the 1756-PSCA2 Chassis Adapter into the dedicated slot on the chassis.
  • Install the two 1756-PA75R power supplies in the left-side power supply slots.
  • Connect each power supply to the adapter using the provided 1756-CPR2 cables.
  • The system automatically synchronizes and shares the power load between both units.
  • If one supply fails, the other instantly takes over the full load with zero interruption.
  • Always connect to a properly rated and grounded AC power source.

Frequently Asked Questions (FAQ)

What is the main purpose of the 1756-PAR2 kit?

  • The 1756-PAR2 kit creates a fully redundant power system for ControlLogix chassis. It prevents system shutdowns if one power supply fails, which is crucial for critical processes.

Can I use only one power supply from this kit for now?

  • Yes, you can operate a single 1756-PA75R power supply from the kit as a stand-alone unit. You can add the second supply later to upgrade to a redundant system without changing wiring.

Is the 1756-PSCA2 Chassis Adapter required for operation?

  • Yes, the 1756-PSCA2 adapter is essential. It consolidates power from the two separate supplies into a single connection for the chassis backplane, enabling the redundant function.
🏷️ Tags: Power Supply Kit

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