Product Details
Overview
The 1756-PA75R from Allen-Bradley is a redundant power supply designed for ControlLogix systems, providing reliable backup power and high availability in critical automation applications.
Technical Specifications
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Model: 1756-PA75R
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Manufacturer: Allen-Bradley
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Module Type: Redundant Power Supply
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Input Voltage Range: 85–265V AC
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Nominal Input Voltage: 120V/240V AC, 50/60 Hz
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Input Frequency Range: 47–63 Hz
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Maximum Input Power: 120 VA / 115 W
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Output Power: 75 W (0–60 °C / 32–140 °F)
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Inrush Current: 20 A maximum
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Output Current Capacity:
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1.2V: 1.5 A
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3.3V: 4 A
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5.1V: 13 A
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24V: 2.8 A
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Annunciator Power: 240V AC / DC, 50 mA resistive
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Isolation Voltage: 250V continuous, reinforced insulation
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Tested Withstand: 3250V DC for 60 seconds
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Dimensions (HxWxD): 17.5 x 14.5 x 13.7 cm (6.9 x 5.7 x 5.4 in)
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Weight: 1.45 kg (3.2 lb)
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Wire Size Recommendations:
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Power: 2.5 mm² (14 AWG) copper, solid/stranded, 90°C rated
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Annunciator: 0.25–2.5 mm² (22–14 AWG) copper, solid/stranded, 90°C rated
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Wire Category: 3 on annunciator ports, 1 on power ports, 3 on 1756-CPR2 connections
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Conductor Screw Torque: 0.79 N·m (7 lb·in)
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Enclosure Type: Open-style, no enclosure
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Temperature Rating: North American T3C
Features
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Supports fully redundant ControlLogix system configurations
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Provides continuous power isolation and surge protection
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Compact design with robust connectivity for critical applications
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Compatible with ControlLogix chassis and 1756-CPR2 controllers
Applications
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High-availability industrial automation systems
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Mission-critical process control setups
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Redundant power configurations for ControlLogix I/O systems
FAQs
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Q: Can this module operate in a standard single power configuration?
A: Yes, it can function as a standard power supply, but its full redundancy features require a paired module. -
Q: Does it support hot-swapping?
A: Yes, it can be replaced without shutting down the ControlLogix chassis. -
Q: What chassis is it compatible with?
A: Compatible with all standard ControlLogix chassis supporting redundant power supplies.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.
Essential Motion Control Commands: A Practical Guide for Engineers
Automation engineers often rely on precise position and speed control to drive modern factory machinery. Modern industrial systems, such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS), depend heavily on standardized motion instructions. Mastering these commands ensures operational safety, protects mechanical components, and optimizes cycle times across production lines.