In modern industrial automation, reliable communication between remote I/O and PLCs is essential. The Schneider Electric CRA module enables efficient Ethernet-based remote I/O connectivity in PLC and DCS systems, improving scalability, diagnostics, and overall networked automation performance.
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
-
Model: 1756-PA75R
-
Manufacturer: Allen-Bradley
-
Module Type: Redundant Power Supply
-
Input Voltage Range: 85–265V AC
-
Nominal Input Voltage: 120V/240V AC, 50/60 Hz
-
Input Frequency Range: 47–63 Hz
-
Maximum Input Power: 120 VA / 115 W
-
Output Power: 75 W (0–60 °C / 32–140 °F)
-
Inrush Current: 20 A maximum
-
Output Current Capacity:
-
1.2V: 1.5 A
-
3.3V: 4 A
-
5.1V: 13 A
-
24V: 2.8 A
-
Annunciator Power: 240V AC / DC, 50 mA resistive
-
Isolation Voltage: 250V continuous, reinforced insulation
-
Tested Withstand: 3250V DC for 60 seconds
-
Dimensions (HxWxD): 17.5 x 14.5 x 13.7 cm (6.9 x 5.7 x 5.4 in)
-
Weight: 1.45 kg (3.2 lb)
-
Wire Size Recommendations:
-
Power: 2.5 mm² (14 AWG) copper, solid/stranded, 90°C rated
-
Annunciator: 0.25–2.5 mm² (22–14 AWG) copper, solid/stranded, 90°C rated
-
Wire Category: 3 on annunciator ports, 1 on power ports, 3 on 1756-CPR2 connections
-
Conductor Screw Torque: 0.79 N·m (7 lb·in)
-
Enclosure Type: Open-style, no enclosure
-
Temperature Rating: North American T3C
Features
-
Supports fully redundant ControlLogix system configurations
-
Provides continuous power isolation and surge protection
-
Compact design with robust connectivity for critical applications
-
Compatible with ControlLogix chassis and 1756-CPR2 controllers
Applications
-
High-availability industrial automation systems
-
Mission-critical process control setups
-
Redundant power configurations for ControlLogix I/O systems
FAQs
-
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
Technical Insights, Installation Guides, and Buying Tips
Upgrading vs. Migrating PLC Systems: Choosing the Right Strategy for Industrial Automation
In industrial automation, Programmable Logic Controllers (PLCs) are vital for control and monitoring. Over time, support and spare parts become limited, forcing engineers to decide between upgrading the existing PLC or migrating to a new system to maintain reliability and reduce downtime.
Site Commissioning Steps for PLC Programmers: A Complete Industrial Automation Guide
Commissioning a PLC control system is one of the most critical phases in any industrial automation project. It transforms design and programming into a fully functional, reliable system on site. For new PLC programmers, understanding each commissioning step ensures smooth integration, reduced downtime, and successful handover to the client.