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CBRW3 Aircuit Circuit Breaker 1600A 3.jpg
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High Breaking Capacity 1600A Air Circuit Breaker from China - Reliable Suppliers & Factory Solutions

Introducing the D&T CBRW3 Intelligent Air Circuit Breaker, a reliable solution for power distribution in various applications. Manufactured in China, this cutting-edge breaker supports an extensive operating voltage range from AC 220V to 1140V, making it suitable for diverse industrial and new energy power systems. As a trusted product from a leading supplier, the CBRW3 boasts a durable insulated structure and an advanced arc-extinguishing system designed to handle high breaking capacities, The energy storage mechanism ensures stable and consistent performance, while the intelligent controller offers precise selective protection, real-time monitoring, fault recording, and compatibility with multiple communication protocols. Available through our factory, the D&T CBRW3 comes in fixed or withdrawable configurations and is designed with 3- or 4-pole options, providing flexible wiring solutions and enhanced safety interlocks for optimal user safety. Choose the D&T CBRW3 for innovative and effective power management tailored to meet your needs
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    Product Details

    Normal Operating and Installation Conditions
    🌡️
    Ambient Temperature: Upper limit +55°C, lower limit -5°C.
    ⛰️
    Altitude: Installation site not exceeding 2000m.
    💧
    Atmospheric Conditions: Relative humidity ≤50% at +55°C; up to 90% at +20°C.
    ☢️
    Pollution Level: Level 3.
    🏗️
    Installation Category: Main circuit Category IV; control/auxiliary circuits Category III.
    📐
    Inclination: Vertical inclination shall not exceed 5°.
    Protection Class: IP30, IP40 (with additional frames/covers).
    Service Category: B
    Product Features
    🚀 Contact System: Multi-path sheet-like structure in insulation compartment for high breaking capacity.
    🛡️ Arc-extinguishing: Advanced system ensures "zero flying arc" for maximum safety.
    ⚡ Speed: Energy-storage mechanism ensures fast closing speeds.
    🎯 Mechanism: Centered operating mechanism, separated from the main circuit for consistent pressure.
    🎨 Aesthetics: Symmetrical design convenient for cabinet door hole-opening.
    🔌 Versatility: Supports bottom incoming lines, horizontal, and vertical wiring.
    🧠 Intelligence: Controller with multiple protection functions for selective protection.
    Model and Description
    Series Frame Size Rated Current (In) Poles Controller Operating Voltage
    ATA 2000 800A, 1000A, 1250A, 1600A, 1900A, 2000A 3P Intelligent Model M AC380V, AC220V, DC220V, DC110V
    Model and Description
    Breaker Model ATA2000
    Frame-rated Current (A) 2000
    Rated Operating Voltage Ue (V) AC230, AC400, AC690
    Rated Insulation Voltage Ui (V) 1000
    Rated Impulse Withstand Voltage Uimp (kV) 12
    Breaking Capacity Icu/Ics (kA) AC400V: 50kA AC690V: 40kA
    Mechanical Life (Times) 10000 (Maint-free) 20000 (Maint-required)
    Dimensions (W×H×D mm) 362×402×355
    Product Structure
    The circuit breaker features a compact, three-dimensional separation structure. Each phase contact is enclosed in individual chambers. The intelligent controller and motor mechanism are arranged as independent units at the front.
    Product Structure
    Intelligent Controller
    Power Supply: Dual-power simultaneous supply (CT Power + Auxiliary Power) ensures reliability.
    1. CT Power: Activated by main circuit current (e.g., ≥0.8In for single phase).
    2. Auxiliary Power: Supports AC230V, AC400V, DC220V, DC110V. Required for ground protection and communication.
    3. Panel Power: DC24V ± 5% for testing during no-load conditions.
    Basic Functions & Characteristics
    Basic Functions
    Basic Functions Detail
    Intelligent Universal Circuit Breaker
    Characteristic Curves
    (1) Standard Inverse Time-Limit (SI)
    (2) Very Inverse Time-Limit (VI)
    (3) Extremely Inverse Time-Limit (EI)
    (4) Motor Protection (EI M)
    (5) High-Voltage Fuse Compatibility (HV)
    (6) I²t Curve
    Characteristic Curves
    Protection Characteristics
    Overload Long-delay: Setting current Ir1 (0.4~1.0)In + OFF.
    Short-circuit Short-delay: Setting current Ir2 (1.5~10)Ir1 + OFF.
    Short-circuit Instantaneous: Ir3 (2In~50kA) + OFF.
    Frequently Asked Questions
    What is the maximum operating temperature for the ATA2000?
    The circuit breaker is designed to operate in ambient air temperatures up to +55°C.
    Does the ATA2000 support "Zero Flying Arc"?
    Yes, it features an advanced arc-extinguishing system and protective cover to ensure zero flying arc for enhanced safety.
    What are the available installation types for this circuit breaker?
    The ATA2000 described is a Fixed Type installation with options for horizontal or vertical main circuit wiring.
    Is an auxiliary power supply mandatory for the intelligent controller?
    An auxiliary power supply is required when using functions such as ground protection, communication, thermal memory, or status signaling when the breaker is open.
    What is the mechanical life of the ATA2000 series?
    It offers a mechanical life of 10,000 operations without maintenance, and up to 20,000 operations with regular maintenance.
    What is the breaking capacity at 400V?
    The Rated Ultimate Short-Circuit Breaking Capacity (Icu) at AC400V is 50kA (RMS).

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