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SJKW1-2000 intelligent universal circuit breaker

Designed for 50Hz AC distribution networks (up to 690V, 200A-6300A), this Air Circuit Breaker provides overload, short-circuit, undervoltage, and ground-fault protection. Its intelligent selective protection enhances power reliability, while open communication interfaces enable remote control for automation systems. Rated for altitudes ≤2000m (8kV impulse withstand voltage), it also functions as an isolator without controllers. Combines precision protection with smart grid compatibility.

    Type Designation

    SJKW1-2000-intelligent-universal-circuit-breaker-(2)

    rated current in scope of frame size

    1600 type

    200A,400A,630A,800A,1000A,1250A,1600A

    2000 type

    630A,800A,1000A,1250A,1600A,2000A

    3200 type

    2000A,2500A,3200A

    4000 type

    2500A,3200A,4000A

    6300 type

    4000A,5000A,6300A

    ②Number of poles:3-default;4-4 pole

    ③Installation
    Fixed type-horizontal,vertical
    Drawout type-horizontal,vertical

    ④Intelligent controller
    M type
    2M type:digital display,over-current protection (overload,short delay,instantaneous),4P or 3P+N have earthing protection.
    3M type:LCD display,over-current protection(overload,short delay,instantaneous),4P or 3P+N have earthing protection.
    H type
    2H type:communication function,digital display,over-current protection(overload,short delay,instantaneous),4P or 3P+N have earthing protection.
    3H type:communication function,LCD display,over-current protection (overload,short delay,instantaneous),4Por 3P+N have earthing protection.

    ⑤Common use accessory
    Shunt release-AC220V/230V,AC380V/400V,DC220V,DC110V
    Undervoltage release-AC220V/230VAC380V/400V,it is classified to instantaneous type and time-delay type.
    Closing electromagnet-AC220V/230V,AC380V/400V,DC220V,DC110V
    Motor-driven energy-storage mechanism-AC220V/230V,AC380V/400V,DC220V,DC110V
    Auxiliary contact-4a4b,2a6b,3a3bNote:a-normal open,b-normal close

    ⑥Optional accessory
    Mechanical interlock;
    One circuit breaker(1lock+1key)
    Two circuit breaker(steel cable interlock,connecting rod interlock,2lock+1key)
    Three circuit breaker(3lock+2keys,connecting rod interlock)
    Automatic power transfer system
    Current transformer connected with neutral lead

     product Display

    SJKW1-ACB
    SJKW1-2000-intelligent-universal-circuit-breaker-(1)
    SJKW1-2000-intelligent-universal-circuit-breaker-(2)
    W1-ACB-intelligent-universal-circuit-breaker-(4)
    SJKW1-2000-intelligent-universal-circuit-breaker-(4)
    SJKW1-2000-intelligent-universal-circuit-breaker-(5)

    Technical Parameters

    Rated current of frame (Inm)

    1600

    2000

    3200

    4000

    6300

    Ue(V)

    AC400V AC690V

    AC400V AC690V

    AC400V AC690V

    AC400V AC690V

    AC400V AC690V

    Ui(V)

    1000

    1000

    1000

    1000

    1000

    Rated Frequency(HZ)

    50HZ

    50HZ

    50HZ

    50HZ

    50HZ

    Rated ultimate short-circuit breaking capacity (Icu, kA)O-CO

    400V

    65

    85

    100

    100

    120

    690V

    50

    50

    65

    65

    80

    Rated short-circuit making capacity nxIcu(ka)/cosφ

    400V

    143

    176/0.2

    220/0.2

    220/0.2

    264/0.2

    690V

    105

    105/0.25

    143/0.2

    143/0.2

    187/0.2

    Rated service short-circuit breaking capacity (Ics, kA) O-CO-CO

    400V

    55

    50

    65

    65

    80

    690V

    42

    40

    50

    50

    70

    Rated short-time withstand current Ic( kA) 1s,Time delay 0.4s, O-CO

    400V

    55

    50

    65

    65/80(MCR)

    85/100(MCR)

    690V

    42

    40

    50

    50/65(MCR)

    65/75(MCR)

    Installation and Overall Dimensions

    Installation-and-Overall-Dimensions-1Installation-and-Overall-Dimensions-2