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Guide to Buying Subracks

Dec. 18, 2023

Subracks play a crucial role in housing electronic components, ensuring their protection and reliable operation. This guide will help you understand the key factors to consider when selecting a subrack, so you can choose the best solution for your electronic equipment needs.


Understanding Subracks: A Brief Overview

Subracks, also referred to as chassis or card cages, provide a structured framework for mounting electronic modules such as PCBs, power supplies, and interface cards. They are widely used across industries like telecommunications, industrial automation, defense, and broadcasting. Available in various sizes and configurations, subracks help organize components, support thermal management, and ensure mechanical stability.


Types of Subracks

There are several common types of subracks, each suited to different applications and installation environments:

  • 19-inch Subracks: The most widely used standard, compatible with equipment racks in data centers and broadcast systems.

  • Desktop Subracks: Compact and portable, ideal for testing or small-scale setups.

  • Wall-Mounted Subracks: Designed to save space while providing secure mounting in control rooms or industrial settings.

  • Custom Subracks: Tailored solutions for specialized requirements, such as shock resistance or unique dimensions.

SNCF Subrack

SNCF Subrack

Key Considerations When Choosing a Subrack

1. Size and Compatibility

Ensure the subrack can accommodate all your electronic modules, both current and future. Consider:

  • Internal Dimensions: Height, width, and depth of the usable space.

  • Expansion Slots: Plan for potential upgrades by selecting a model with extra slot capacity.

  • Standard Compliance: Verify adherence to industry standards like IEC 60297 for 19-inch subracks.

2. Material and Durability

The material affects the subrack’s strength, weight, and resistance to environmental factors:

  • Aluminum: Lightweight and corrosion-resistant, suitable for portable applications.

  • Steel: Offers high durability and electromagnetic shielding, ideal for industrial or harsh environments.

  • Coating/Finish: Look for powder-coated or anodized surfaces for added protection.

3. Cooling and Ventilation

Electronic components generate heat, making thermal management essential:

  • Ventilation Options: Choose models with perforated panels, fan trays, or provisions for heat sinks.

  • Airflow Design: Ensure the layout supports efficient cooling without obstructing module placement.

4. Ease of Assembly and Cable Management

A well-designed subrack simplifies installation and maintenance:

  • Tool-less Assembly: Saves time during setup and reconfiguration.

  • Cable Guides and Tie Points: Keep wiring organized, minimize clutter, and reduce interference.

5. Environmental and Mechanical Requirements

Consider the operating environment:

  • Vibration and Shock Resistance: Critical for transportation or heavy machinery applications.

  • IP Rating: If used in dusty or humid conditions, select a subrack with appropriate ingress protection.

FAQs about Buying Subracks

Q: What is the standard size for a 19-inch subrack?
A: The standard width is 482.6 mm (19 inches), with common heights expressed in rack units (e.g., 3U, 6U). Depth can vary based on application needs.

Q: Can subracks be customized?
A: Yes, many manufacturers offer customization in size, material, cooling options, and accessory layouts to meet specific project requirements.

Q: Are there subracks designed for high-vibration environments?
A: Absolutely. Look for models with reinforced structures and secure locking mechanisms, especially in industries like aerospace or railway.

Q: How do I ensure good cable management in a subrack?
A: Select subracks with integrated cable management features such as routing channels, tie-off points, and removable side panels for easy access.


Choose Reliability with Rdekono

When it comes to durable, high-performance subracks, Rdekono offers a wide range of standard and customized solutions tailored to your needs. From robust 19-inch chassis to specialized enclosures for demanding environments, Rdekono combines quality materials, smart design, and expert support to help you build a reliable electronic system.

📞 Contact Rdekono today to find the perfect subrack solution for your application!


Final Tips
Investing in the right subrack not only protects your electronic components but also enhances system performance and scalability. By evaluating your needs in terms of size, material, cooling, and customization, you can make a confident and informed decision.

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