Description
Allen-Bradley 1756-PA75RA: High-Performance Power Supply for Industrial Automation
If you’re running a ControlLogix system, the Allen-Bradley 1756-PA75RA is likely on your radar. This redundant power supply module ensures consistent and reliable operation in mission-critical applications. From my experience, it’s one of those products that quietly keeps things running while engineers focus on other challenges.
Key Features
- Redundant Power Capability: Designed to work seamlessly with another 1756-PA75R or PA75RA unit, ensuring zero downtime during power failures.
- High Output Capacity: Delivers up to 75W of power, making it suitable for large-scale automation systems with multiple I/O modules.
- Hot-Swappable Design: Allows replacement without shutting down the entire system, which seems to be a game-changer for continuous operations.
- Status Indicators: Built-in LEDs provide real-time diagnostics, so troubleshooting becomes less of a headache.
- Compact Form Factor: Despite its robust performance, it fits neatly into standard ControlLogix chassis, saving valuable cabinet space.
Technical Specifications
| Specification | Details |
|---|---|
| Brand/Model | Allen-Bradley 1756-PA75RA |
| HS Code | 85044090 |
| Power Requirements | 120/230V AC Input, 75W Output |
| Dimensions & Weight | Height: 180mm, Width: 40mm, Depth: 200mm; Approx. 1.5kg |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Signal Input/Output Types | Analog/Digital compatible via backplane communication |
| Communication Interfaces | ControlLogix backplane integration |
| Installation Method | DIN rail or panel mount |
Application Fields
The 1756-PA75RA finds its place in industries where reliability is non-negotiable. You might notice that oil and gas facilities, water treatment plants, and manufacturing lines rely heavily on this model. Its ability to maintain uninterrupted power flow makes it ideal for processes requiring 24/7 uptime. One thing I appreciate is how well it integrates into existing ControlLogix setups without needing extensive reconfiguration.
Advantages & Value
From a procurement standpoint, this power supply offers significant long-term savings. Redundancy minimizes costly downtime, and its compatibility with older ControlLogix systems reduces upgrade expenses. It appears that customers value Rockwell Automation’s technical support, which typically resolves issues quickly. Additionally, the hot-swappable feature means maintenance doesn’t disrupt production schedules—a subtle but impactful advantage.
Installation & Maintenance
Installing the 1756-PA75RA requires adherence to standard cabinet practices: ensure proper ventilation around the unit and follow wiring guidelines to prevent overheating. Safety precautions include disconnecting mains power before installation. For routine maintenance, periodic cleaning of dust buildup and firmware updates are recommended. Calibration isn’t usually necessary unless specific operational anomalies arise.
Quality & Certifications
This product complies with global standards, including CE, UL, ISO 9001, and RoHS certifications. The manufacturer backs it with a 12-month warranty, covering defects under normal use conditions. In most cases, users report minimal issues during the warranty period, reflecting the build quality.
Order Placement Process and Guarantees
Our order process is straightforward: we require a 50% advance payment, with the balance due upon delivery. Delivery times range from one week for in-stock items to no more than a month for special orders. We offer express shipping through FedEx, UPS, or DHL, ensuring timely arrival. Plus, our 365-day warranty guarantees peace of mind for your investment.
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