Description
Allen-Bradley 1771-A4B: Reliable PLC Chassis for Industrial Automation
If you’re managing an industrial automation setup, the Allen-Bradley 1771-A4B chassis is a solid choice. Designed to house and organize I/O modules in the Allen-Bradley PLC ecosystem, this chassis ensures stable operation even in demanding environments. One thing I appreciate is its modular design, which makes it easy to scale your system as needs evolve.
Key Features
- Modular Design: The 1771-A4B supports multiple I/O modules, allowing you to configure your system for specific tasks without unnecessary complexity.
- Compact Form Factor: With a slim profile, it fits into tight control cabinets while still offering robust performance.
- Backplane Compatibility: Seamlessly integrates with Allen-Bradley’s 1771 series backplanes, ensuring reliable communication between modules.
- Durable Build: From my experience, this chassis holds up well in harsh industrial settings, thanks to its rugged construction.
Technical Specifications
| Specification | Details |
|---|---|
| Brand/Model | Allen-Bradley 1771-A4B |
| HS Code | 85371090 |
| Power Requirements | Dependent on connected modules |
| Dimensions & Weight | Approx. 10 x 5 x 3 inches, 5 lbs |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Signal Input/Output Types | Analog/Digital via compatible modules |
| Communication Interfaces | Backplane-based communication |
| Installation Method | DIN rail or panel mounting |
Application Fields
The Allen-Bradley 1771-A4B is widely used across industries such as manufacturing, water treatment, and packaging. You might notice that it’s particularly popular in facilities where space optimization is critical but performance can’t be compromised. For example, a customer once shared how they streamlined their production line by integrating this chassis into a compact control cabinet, reducing clutter without sacrificing functionality.
Advantages & Value
From a procurement standpoint, the 1771-A4B offers excellent value. Its compatibility with existing Allen-Bradley systems minimizes integration headaches, while its durability reduces long-term replacement costs. It seems that many users also appreciate the ease of sourcing spare parts, which isn’t always the case with other brands. Plus, our team provides technical support to help you get the most out of your investment.
Installation & Maintenance
For installation, ensure proper ventilation around the chassis to prevent overheating. Typically, we recommend leaving at least 2 inches of clearance on all sides. Wiring should follow standard practices, with secure connections to avoid signal loss. Routine maintenance includes periodic cleaning to remove dust buildup and firmware updates if applicable. Calibration isn’t usually required unless paired with analog modules.
Quality & Certifications
This product meets stringent industry standards, including CE, UL, and RoHS certifications. The manufacturer backs it with a 12-month warranty, giving you peace of mind during deployment. In most cases, issues are rare due to rigorous quality checks before shipping.






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