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WLM6LY-160A-4300 4P WLM6L Series RCCB earth leakage protection type MCCB 400V 160A 3 poles 4 Poles  mccb breaker


WLM6LY-160A-4300 4P WLM6L Series RCCB earth leakage protection type MCCB 400V 160A 3 poles 4 Poles mccb breaker

Rated Current : 160A

Number Of Poles : 3P/4P

Rated Working Voltage : 400V/690V

    Residual Current Circuit Breaker (RCCB) and its Advantages and Functions

    1. Enhanced Safety: One of the primary advantages of RCCBs is their ability to enhance electrical safety. They are designed to quickly detect and interrupt abnormal current flows, such as leakage currents, which can occur when a person comes into contact with a live conductor or when there is a fault in the electrical system. By tripping the circuit in such situations, RCCBs help prevent electric shock and reduce the risk of electrical fires.

     2. Protection Against Ground Faults: RCCBs provide protection against ground faults, which occur when current flows from an energized conductor to the ground. This can happen due to insulation failure or accidental contact with a live conductor. RCCBs are capable of detecting even small leakage currents and can quickly disconnect the circuit to prevent electric shock and other hazards.

    A Residual Current Circuit Breaker (RCCB) is an electrical safety device designed to protect against electric shock and fire hazards caused by earth leakage currents. It works by constantly monitoring the balance of current flowing through the live and neutral conductors of a circuit. If a fault occurs, such as a person touching a live wire or water entering an electrical appliance, the RCCB quickly detects the imbalance and trips the circuit, cutting off the power supply and preventing potential harm.

    One of the key advantages of RCCBs is their ability to provide enhanced protection against electric shock. They are particularly effective in detecting small leakage currents that may not be detected by traditional circuit breakers, thus significantly reducing the risk of electrical accidents.

    Furthermore, RCCBs are designed to function reliably in a wide range of environments, making them suitable for both residential and industrial applications. They are also easy to install and require minimal maintenance, providing a cost-effective solution for ensuring electrical safety.

    In summary, the primary function of an RCCB is to detect and interrupt earth leakage currents, thereby preventing electric shock and fire hazards. Its advantages include enhanced protection against electric shock, versatility in application, and ease of installation and maintenance, making it an essential component of modern electrical systems.

    Main performance index of WLM6LY series circuit breaker

    WLM6LY Moulded Case Circuit Breaker
    Rated current (A) of circuit breaker 40℃
    Fix type 16-20-25-30-32-40-50-60-63-75-80-90-100-125-140-150-160
    Lcd type 16-20-25-30-32-40-50-60-63-75-80-90-100-125-140-150-160
    Rated insulation voltage Ui (V) 1000
    Rated impulse withstand voltage (kV) 8
    Rated operational voltage Ue(V),AC 50/60Hz AC230V(2P)/AC400(3P、3P+N、4P)
    Breaking capacity code C S M H
    Number of poles 2P
    Rated ultimate
    short-circuit breaking
    capacity Icu (kA)
    AC380/400/415V 15 20 25 35
    AC380/400/415V 10 15 25 35
    Rated residual making and breaking capacity
    I△ m(kA)
    AC220/230/240V - - 12.5 12.5
    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) 60/90/120
    Height 155
    Depth 68
    Distribution protection
    2P -
    3P 1.45
    4P 1.592

    MCCB Production Line Real Showing

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