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China Suppliers Factory for ARM5 Series Drawer Base - Innovative MCCB Drawer Holder for Easy Installation and Maintenance
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China Suppliers Factory for ARM5 Series Drawer Base - Innovative MCCB Drawer Holder for Easy Installation and Maintenance

The drawer holder for molded case circuit breakers (MCCB) is an essential component designed for the efficient installation, operation, and maintenance of the MCCB body. As a vital part of modular distribution accessories, this innovative design transforms a traditional fixed MCCB into a convenient drawer-style withdrawable structure. It is widely utilized in low-voltage distribution cabinets, switchgear, industrial distribution panels, and building power distribution systems. This product effectively addresses key challenges associated with fixed circuit breakers, enhancing installation processes, operational flexibility, safety, and system scalability. Choose our high-quality drawer holder from trusted manufacturers in China, ensuring reliability and performance. Connect with top suppliers and factories for your MCCB accessory needs today!
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    Product Detail

    Core Role

    Realize three position switching

    There are three positions for connection, testing, and extraction: the connection position provides normal power supply; The main circuit of the test site is powered off and the secondary circuit is powered on, which can be safely debugged; Pull out the position and completely physically disconnect, forming a visible power outage breakpoint.

    Safe isolation

    After extraction, there is a clearly visible insulation gap, and there is no risk of electric shock or misoperation during maintenance, meeting electrical safety regulations.

    Quick maintenance and replacement

    Without dismantling the main and secondary cables, the circuit breaker body can be directly removed for maintenance and replacement without damaging the cabinet wiring.

    Anti misoperation interlock

    Only when the circuit breaker is opened can it be pulled in and out, and the connection cabinet door cannot be opened to avoid load insertion and accidental contact with live parts structurally.

    Integrated transfer circuit

    Integrate auxiliary contacts, shunt/undervoltage trip and other accessories, unify the transfer of main circuit and secondary line, simplify cabinet wiring.

    Main Advantages

    Safer operation and maintenance

    providing visible isolation breakpoints, combined with mechanical interlocking, significantly reducing the risk of electric shock and arc during maintenance.

    High maintenance efficiency

    No need to disconnect the wires, and the replacement time for circuit breakers has been reduced from several hours to just over ten minutes.

    Uninterrupted power supply

    Critical circuits can quickly replace backup circuit breakers, suitable for scenarios such as factories and data centers where power outages cannot last for a long time.

    Modular universality

    Circuit breakers of the same specifications are interchangeable, spare parts are unified, and later expansion and renovation are more flexible.

    Neat wiring

    using contact plugs, the cabinet's wiring is organized, and the heat dissipation and insulation are better.

    ARM5/ARM5E(i) drawer base dimensions and installation dimensions
    ARM5 Series POPB Installation Dimension Drawing
    Figure 1 ARM5 Series POPB Installation Dimension Drawing
    Adapt to MCCB Poles Overall dimensions Installation dimensions
    L1 L2 L3 H1 H2 H3 W1 W2 W3 Φd1 Φd2 A B Φd2
    M5-160/250、M5E(i)-160/250 3P 199 217.6 124 180.5 17 38.5 35 176.5 70 8.5 M5 70 75 6
    M5-400/630、M5E(i)-400/630 3P 313 340 206 268 23 85 45 215 90 11 M6 100 150 7
    Frequently Asked Questions (FAQ)
    What are the three positions realized by the ARM5 drawer base?
    The drawer base realizes three distinct positions: connection (normal power supply), testing (main circuit powered off, secondary circuit powered on for safe debugging), and extraction (completely physically disconnected to form a visible power outage breakpoint).
    How does the drawer base improve maintenance safety?
    It provides visible isolation breakpoints and mechanical interlocking. This prevents accidental contact with live parts and load insertion, significantly reducing the risk of electric shock and arc during maintenance.
    Can I replace the circuit breaker without dismantling the cabinet wiring?
    Yes, the circuit breaker body can be directly removed for maintenance and replacement without dismantling the main and secondary cables, protecting the integrity of the cabinet wiring.
    How does the anti-misoperation interlock mechanism work?
    The mechanical interlock ensures that the circuit breaker can only be pulled in and out when it is in the opened state. Additionally, the connection cabinet door cannot be opened structurally while live, preventing accidental contact.
    What MCCB models are compatible with the ARM5/ARM5E(i) drawer base?
    It is compatible with MCCB models M5-160/250, M5E(i)-160/250, M5-400/630, and M5E(i)-400/630 (3P configurations). Detailed installation dimensions for these models are provided in the dimensions table above.

    MCCB Production Line Real Showing

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