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WLM6LY-400A-4300 4P   WLM6L Series earth leakage protection type RCCB 400V 400amper 3 poles 4 Poles  mccb breaker


WLM6LY-400A-4300 4P WLM6L Series earth leakage protection type RCCB 400V 400amper 3 poles 4 Poles mccb breaker

Rated Current : 400A

Number Of Poles : 3P/4P

Rated Working Voltage : 400V/690V

    Advantages of RCCB

    Easy Installation and Maintenance: RCCBs are relatively easy to install and require minimal maintenance. Once installed, they continuously monitor the electrical system for abnormal currents and provide reliable protection without the need for frequent adjustments or servicing.

    Current Sensing: The primary function of an RCCB is to sense the difference between the incoming and outgoing currents in a circuit. When the device detects a mismatch, it indicates the presence of a leakage current, which could be caused by a fault or an unintended path for current flow.
    Tripping Mechanism: Upon detecting a leakage current, the RCCB activates its tripping mechanism to quickly disconnect the circuit. This action helps prevent electric shock and other hazards associated with abnormal current flows.

    Main performance index of WLM6LY series circuit breaker

    WLM6LY Moulded Case Circuit Breaker
    Rated current (A) of circuit breaker 40℃
    Fix type
    Lcd type
    Rated insulation voltage Ui (V) 1000
    Rated impulse withstand voltage (kV) 8
    Rated operational voltage Ue(V),AC 50/60Hz AC400V
    Breaking capacity code C S M H
    Number of poles 2P - - - -
    3P - -
    4P - -
    Rated ultimate
    short-circuit breaking
    capacity Icu (kA)
    AC380/400/415V - - 50 65
    AC380/400/415V - - 35 42
    Rated residual making and breaking capacity
    I△ m(kA)
    AC220/230/240V - - - 16.5
    Limit non-actuating time △ t (ms) 0.06s/0.2s/0.5s/1s
    Leakage alarm non-tripping function
    overcurrent tripping type Themal type
    Leakage tripping type Electronic Type
    Residual current type AC
    Standard IEC/EN 60947-2
    Utilization category A
    Ambient temperature -40℃ ~+70 ℃
    Safety of insulation
    Arcing distance 0
    Mechanical life
    (CO recycle)
    Maintenance 15000
    Electrical life
    (CO recycle)
    AC415V,In 8000
    AC690V,In 2000
    Release units
    Mounting and connection
    Front connection
    Rear connection
    Front connection
    Rear connection
    Front connection -
    Rear connection -
    DIN rail
    Front connection
    Dimension (mm)
    Width (2P/3P/4P) -/140/184
    Height 257
    Depth 103
    Distribution protection
    2P -
    3P 4.758
    4P 6.314

    MCCB Production Line Real Showing

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