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1756-PA75R

Allen-Bradley 1756-PA75R | ControlLogix 75W Redundant PSU

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  • Manufacturer: Allen-Bradley

  • Product No.: 1756-PA75R

  • Product Type: Power Supply

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 1450g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

Allen-Bradley ControlLogix Redundant Power Supply 1756-PA75R

The Allen-Bradley 1756-PA75R is a 75-watt redundant power supply for ControlLogix chassis. Designed for external mounting, it provides backup power and automatic load-sharing to ensure system continuity. It supports a wide AC input range and delivers stable power to critical control components.

Core Specifications

  • Brand & Model: Allen-Bradley 1756-PA75R
  • Series: ControlLogix Redundant Power Supply
  • Input Voltage: 85–265 V AC, 47–63 Hz
  • Nominal Input: 120/240 V AC
  • Output Power: 75 W @ 0–60°C
  • Output Current: 13 A @ 5.1V DC, 2.8 A @ 24V DC, 4 A @ 3.3V DC, 1.5 A @ 1.2V DC
  • Input Power: 115 W (120 VA)
  • Max Inrush Current: 20 A
  • Hold-up Time: 2 cycles at 50/60 Hz

Key Features

  • Redundant Operation: Pairs with a second unit for automatic load-sharing and high availability.
  • External Mounting: Installs outside the chassis to save internal slots and simplify maintenance.
  • Status Monitoring: Includes a solid-state relay output for remote health monitoring via an input module or annunciator.
  • Wide Voltage Range: Operates on 85-265V AC for global compatibility.
  • Chassis Compatibility: Works with 1756-A4, A7, A10, A13, A17 chassis via adapter.

Installation & System Requirements

  • Required Components: Two 1756-PA75R units, two 1756-CPR2 cables, one 1756-PSCA2 chassis adapter.
  • Annunciator Connection: Supports 240V AC/DC, 50 mA resistive load for status signaling.
  • Wire Size: Use 14 AWG for power conductors; 22-14 AWG stranded for annunciator.
  • Fuse: Non-replaceable, soldered-in-place fuse for protection.
  • Isolation: Reinforced insulation; tested at 3250V DC for safety.

Physical & Environmental

  • Dimensions: 6.9" x 5.7" x 5.4" (17.5 x 14.5 x 13.7 cm)
  • Weight: 3.2 lbs (1.45 kg)
  • Operating Temperature: 32° to 140°F (0° to 60°C)
  • EMC Standards: Complies with IEC/CISPR 11 (Class A).
  • Immunity: Surge transient ±1 kV line-line, ±2 kV line-earth; Conducted RF 10 Vrms.
  • Enclosure: None (for panel mounting within an enclosure).

Packaging & Shipping

  • One Allen-Bradley 1756-PA75R redundant power supply unit.
  • Secure industrial packaging.
  • Shipped via FedEx, UPS, or DHL.

FAQ

  • What is needed to create a redundant pair?
    You need two 1756-PA75R supplies, two 1756-CPR2 series cables, and a 1756-PSCA2 chassis adapter module.
  • Can this power supply be used as a standalone unit?
    It is designed for redundant paired operation. For a single, non-redundant supply, consider the standard 1756-PA75.
  • How is the power supply status monitored?
    The built-in solid-state relay contact can be wired to a PLC input module or an external annunciator to indicate operational status.
🏷️ Tags: Power Supply Module

Scalar (V/f)

Vector

AC-powered
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