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    Ethernet Cable Fire Ratings. What You Need To Know To Stay Safe And Connected

    Ethernet Cable Fire Ratings: What You Need to Know to Stay Safe and Connected!

    Ethernet Cable Fire Ratings


    Hey there! Choosing the right Ethernet cables isn't just about speed and performance; it's also about safety. Whether you're a tech-savvy homeowner or a business owner setting up a new office, understanding fire safety ratings is crucial. Let's dive into what each fire rating means, their differences, and where you should use them. And of course, we'll highlight some top picks from Monoprice.com to get you started!




    Fire Ratings Explained

    Ethernet cables have different fire ratings depending on their specific use cases and safety features:


    CM (Communications Multipurpose)

    These are reliable for everyday use in homes and offices, offering basic fire resistance.

    • Use Case: Perfect for in-wall or general installations within a single floor of a building.

    CMR (Riser)

    CMR cables are designed to prevent fires from spreading between floors in vertical runs.

    • Use Case: Ideal for running cables between floors in multi-story buildings.

    CMP (Plenum)

    CMR cables are designed to prevent fires from spreading between floors in vertical runs.

    • Use Case: Ideal for running cables between floors in multi-story buildings.

    LSZH (Low Smoke Zero Halogen)

    LSZH cables produce minimal smoke and no toxic halogens, prioritizing human safety.

    • Use Case: Great for public spaces or areas with poor ventilation where toxic fumes are a concern.




    Differences Between Fire Ratings


    CM vs. CMR

    CM is for general in-wall use within a single floor, while CMR is designed for vertical installations between floors, offering better fire resistance.

    CMR vs. CMP

    CMR is best for riser spaces and vertical runs, whereas CMP is ideal for plenum spaces with the highest fire resistance and the lowest smoke production.

    CMP vs. LSZH

    CMP focuses on fire retardancy and low smoke production, while LSZH prioritizes minimizing toxic fumes, making it ideal for spaces where human health is paramount.




    Let's Compare!


    Fire Rating Description Use Case Fire Resistance Smoke Production Toxic Fumes
    CM General-purpose In-wall, single floor Moderate Moderate Moderate
    CMR Riser Vertical runs, non-plenum High Moderate Moderate
    CMP Plenum Air ducts, drop ceilings Highest Lowest Lowest
    LSZH Low Smoke Zero Halogen Enclosed public spaces High Low None


    It's important to remember that for safety and building code regulations, CM cables can't be used in place of CMR or CMP cables. Each type has a specific use:


    CM Cables

    These are great for general use, like running cables through walls or floors within a single level. However, they can’t be used in spaces between floors or where air flows, like vents.

    CMR Cables

    These are designed for vertical runs between floors, so they can replace CM cables and be used in most indoor spaces that don’t involve airflow.

    CMP Cables

    These have the highest fire rating and can be used anywhere, including plenum spaces (areas like air ducts or ceilings where air circulates). CMP cables can replace both CM and CMR cables when needed.


    For example, if you're running a cable through a wall on the same floor of a home or office, a CM cable works fine. But if you're running a cable between floors in a building, you’ll need CMR or CMP cables. And if you're installing cables in areas with air ducts, only CMP cables are safe to use.


    Ethernet Cable Fire Ratings

    Also, please keep in mind that when it comes to cost, CM cables are the most affordable, designed for general use in homes and offices where basic fire protection is sufficient. CMR cables are slightly more expensive, offering better fire resistance for vertical runs between floors. CMP cables, the most costly option, provide the highest fire safety for plenum spaces like air ducts and ceilings. Their specialized design makes them essential for high-risk areas such as commercial buildings or locations with strict fire safety regulations.




    Use Cases In Detail

    CM-Rated Cable


    Monoprice Cat6 5ft Blue Patch Cable, UTP, 24AWG, 550MHz, Pure Bare Copper, Snagless RJ45, Fullboot Series Ethernet Cable

    • Home Networking: Perfect for running Ethernet cables within walls or under floors in a single story.

    • Office Networking Connect devices within a single floor of an office building.

    Shop This Product


    CMR-Rated Cable


    Monoprice Cat6 1000ft Blue CMR UL Bulk Cable, Solid (w/spine), UTP, 23AWG, 550MHz, Pure Bare Copper, Reelex II Pull Box, Bulk Ethernet Cable

    • Building Networking: Excellent for running cables between floors in multi-story buildings.

    • Riser Shafts: Supports resolutions up to 2560x1600 at 60 Hz.



    Shop This Product


    CMP-Rated Cable


    Monoprice Cat6 1000ft Blue CMP UL Bulk Cable, TAA, Solid (w/spine), UTP, 23AWG, 550MHz, Pure Bare Copper, Pull Box, Bulk Ethernet Cable

    • Commercial Buildings: Essential for installing Ethernet cables in air ducts or ceiling spaces.

    • Hospitals and Schools: Ensure maximum fire safety and low smoke production in critical environments.

    Shop This Product


    LSZH-Rated Cable


    • Public Buildings: Minimize toxic fume risk in areas with high human occupancy.

    • Enclosed Spaces: Perfect for subways, tunnels, and other confined spaces with limited ventilation.



    Item Coming Soon




    Wrapping Up

    Choosing the right Ethernet cable fire rating is all about knowing your needs and the environment where the cables will be installed. For businesses, selecting the right cable ensures compliance with safety standards and the protection of both property and people. Whether you're a homeowner, a business owner, or managing a public space, picking the right cable rating is essential for safety and performance.

    By understanding these fire ratings, you can make an informed decision that best suits your networking requirements. For reliable and high-quality cables, check out the options available on Monoprice.com. Stay safe, stay connected, and happy networking!




    Why Choose Monoprice Network Cables?

    Looking for reliable network cables that won't let you down? Here’s why Monoprice is your go-to choice:


    100% Pure Bare Copper


    Our cables feature top-quality pure copper, ensuring the best audio performance for all your needs.

    Wide Selection


    Whether you need cables for personal use or large-scale projects, we have a variety to choose from.

    Volume Pricing


    Enjoy great savings on wholesale purchases with our competitive volume pricing.

    Lifetime Warranty


    Every cable comes with a lifetime warranty, giving you peace of mind.

    Easy 30-Day Returns


    Not completely satisfied? Our hassle-free 30-day return policy has got you covered.

    Tech Support


    Our expert tech support team is always ready to answer your questions and help you choose the perfect product.

    Comprehensive Business Support

    Our sales representatives are available via phone or email to assist with custom quotes, and our convenient line of credit can help expand your business procurement.

    Trusted Experience


    With over 22 years in the business, you can count on Monoprice for quality and reliability.

    At Monoprice, we're here to make sure you get the best audio experience possible. Shop with confidence and discover why our customers keep coming back!





    For further assistance on your networking cable needs,
    click the link below:

    Guide To Networking Cables
    & Accessories


    Ready to explore more options? Click the link below to
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