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W1-ACB.jpg
W1-ACB.jpg

W1 ACB Intelligent Universal Circuit Breaker from China Suppliers and Factory for Reliable Power Protection

The W1 ACB Intelligent Universal Circuit Breaker is a vital component for China’s electrical infrastructure, safeguarding 50Hz distribution networks up to 690V and 6300A. This advanced circuit breaker provides robust protection against overloads, short circuits, undervoltage, and ground faults, ensuring reliability in various industrial applications. Featuring precision selective tripping, the W1 ACB maximizes uptime with an impressive 8000V impulse withstand capability, adjustable to 12000V for high altitude installations. As a leading product from trusted suppliers in China, it supports four remote operations through open communication interfaces, facilitating seamless SCADA integration. Compliant with GB14048.2 and IEC60947-2 standards, this device serves as both a protector and isolator, delivering dependable performance in industrial power systems without the need for additional controllers. Choose the W1 ACB from our factory for a durable and efficient solution to your circuit protection needs
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    Product Details

    Type Designation
    W1-ACB-intelligent-universal-circuit-breaker-7
    No. Description
    1 Enterprise code
    2 Universal circuit breaker
    3 Design serial number
    4 Rated current of circuit breaker frame level
    5 Number of poles: 4-pole marked as 4, no marking for 3-pole
    Product Display
    W1-ACB-intelligent-universal-circuit-breaker-(1)
    W1-ACB-intelligent-universal-circuit-breaker-(2)
    W1-ACB-intelligent-universal-circuit-breaker-(3)
    W1-ACB-intelligent-universal-circuit-breaker-(4)
    W1-ACB-intelligent-universal-circuit-breaker-(5)
    W1-ACB-intelligent-universal-circuit-breaker-(6)
    Product Structure Diagram
    W1-2
    • ① Secondary Circuit Terminal
    • ② Close Button
    • ③ Trip Button
    • ④ Manual Energy Storage Handle
    • ⑤ Close/Trip Position Indicator
    • ⑥ Energy Storage and Release Indicator
    • ⑦ Front Panel
    • ⑧ In/Out Device
    • ⑨ Position Indicator
    • ⑩ Hand Crank and Its Storage
    W1-3
    • 1. Secondary Circuit Terminal (Fixed)
    • 2. Drawer Chassis
    • 3. Safety Barrier
    • 4. Secondary Circuit Terminal (Movable)
    • 5. Auxiliary Contact
    • 6. Shunt Release
    • 7. Under Voltage Release
    • 8. Closing Electromagnet
    • 9. Operating Mechanism
    • 10. Motorized Smart Mechanism
    • 11. Intelligent Controller
    • 12. Front Panel
    Technical Parameters
    Category 2000A Frame Level 3200A Frame Level 4000A Frame Level 6300A Frame Level
    Rated Current (A) 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000 2000, 2500, 2900, 3200 3200, 3600, 4000 4000, 5000, 6300
    Total Number of Operating Cycles 10000 5000 5000 2000
    Rated Short-Circuit Breaking Capacity Icu (kA) O-Co 400V 80 100 100 120
    690V 50 65 65 80
    Rated Short-Circuit Making Capacity nxlcu (kA) / cosA 400V 176/0.2 220/0.2 220/0.2 264/0.2
    690V 105/0.25 143/0.2 143/0.2 187/0.2
    Service Short-Circuit Breaking Capacity Ics (kA) O-C0-Co 400V 50 65 80 100
    690V 40 50 65 80
    Rated Short-Time Withstand Current Icw (kA) 1s, 0.4s, 0-Co 400V 50 65 65/80(MCR) 85/100(MCR)
    690V 40 50 50/65(MCR) 65/75(MCR)
    Operating Voltage & Power Requirements
    Power Required   Rated Operating Voltage AC (50Hz) DC
    Unit AC220V AC380V DC110V DC220V
    Shunt Release 24VA 36VA 24VA 24VA
    Undervoltage Release 24VA 36VA - -
    Closing Electromagnet 24VA 36VA 24VA 24VA
    Motorized Operating Mechanism 2000A 85VA 85VA 85VA 85VA
    3200A, 4000A 110VA 110VA 110VA 110VA
    6300A 150VA 150VA 150VA 150VA
    Intelligent Controller Power Supply Voltage AC220V, AC380V, DC220V, DC110V
    Note: The reliable operating voltage range is 70%–110% for shunt release, and 80%–110% for closing electromagnet and operating mechanism.
    Installation Dimensions and Overall Dimensions
    Installation dimensions and overall dimensions In(A) a(mm) b(mm) e(mm)
    Fixed Circuit Breaker (2000, 2000/4) 400–800 10 95 38
    1000–1600 15 105 48
    2000 20 115 58
    Fixed Circuit Breaker (3200, 3200/4) 2000–2500 20 115 23
    2900–3200 30 135 43
    Drawer-Type Circuit Breaker (1000, 2000/3, 4) 400–800 10 95 3
    1000–1600 15 105 13
    2000 20 115 23
    Drawer-Type Circuit Breaker (3200, 3200/4) 2000–2500 20 115 58
    2900–3200 30 135 78
    Drawer-Type Circuit Breaker (4000) Note: The horizontal center-to-center distance between the panel and circuit breaker shall be 57.5mm
    Drawer-Type Circuit Breaker (4000/4) Note: The horizontal center-to-center distance between the panel and circuit breaker shall be 206.5mm
    Drawer-Type Circuit Breaker (6300A, 6300/4 In=4000A, 5000A) Note: The horizontal center-to-center distance between the panel and circuit breaker shall be 189mm (3-pole), 246.5mm (4-pole)
    Drawer-Type Circuit Breaker (6300 In=6300A) Note: The horizontal center-to-center distance between the panel and circuit breaker shall be 246.5mm
    Drawer-Type Circuit Breaker (6300A) Note: The horizontal center-to-center distance between the panel and circuit breaker shall be 304mm

    ◆ Fixed Circuit Breaker Installation & Outline Dimensions (Refer to Figures 1, 2)

    W1-6

    ◆ Drawer-Type Circuit Breaker Installation & Outline Dimensions (Refer to Figures 3, 4, 5, 6, 7, 8, 9)

    W1-7
    W1-8
    W1-9
    W1-10
    User Connection Busbar Specifications and Quantity
    Rated Current External Copper Busbar Specification Number of Bars per Pole Rated Current External Copper Busbar Specification Number of Bars per Pole
    630A 40×5 2 2900A 100×10 3
    800A 50×5 2 3200A 120×10 3
    1000A 60×5 2 3600A 120×10 4
    1250A 80×5 2 4000A 120×10 4
    1600A 100×5 2 5000A 120×10 5
    2000A 100×5 3 6300A 120×10 6
    2500A 100×5 4 - - -
    Frequently Asked Questions (FAQ)
    QWhat frame levels are available for the W1 ACB Intelligent Universal Circuit Breaker?
    The W1 ACB is available in four frame levels: 2000A, 3200A, 4000A, and 6300A. Each frame level covers a range of rated currents to suit different application requirements in power distribution systems.
    QWhat is the rated short-circuit breaking capacity (Icu) of the W1 ACB at 400V?
    The rated short-circuit breaking capacity (Icu) varies by frame level: 80kA for the 2000A frame, 100kA for the 3200A and 4000A frames, and 120kA for the 6300A frame — all at 400V.
    QWhat installation types are available for the W1 ACB?
    The W1 ACB is available in two installation types: Fixed Circuit Breaker and Drawer-Type Circuit Breaker. Each type has specific installation dimensions and busbar connection requirements based on the rated current.
    QWhat operating voltages are supported by the W1 ACB's auxiliary components?
    The auxiliary components — including the shunt release, closing electromagnet, and motorized operating mechanism — support AC220V, AC380V (50Hz), DC110V, and DC220V. The intelligent controller also supports these same voltage options.
    QHow many poles does the W1 ACB support?
    The W1 ACB supports both 3-pole and 4-pole configurations. In the type designation, 4-pole models are marked with "4," while 3-pole models have no specific marking for the number of poles.
    QWhat copper busbar specifications are recommended for a 6300A rated current?
    For a 6300A rated current, external copper busbars with a specification of 120×10mm are recommended, with 6 bars per pole to ensure safe and reliable current distribution.