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  • 參數(shù)資料
    型號(hào): LKP5741-5PD4
    元件分類(lèi): 電源模塊
    英文描述: 2-OUTPUT 250 W AC-DC PWR FACTOR CORR MODULE
    封裝: HEAT SINK, METAL, CASE K02, MODULE
    文件頁(yè)數(shù): 10/23頁(yè)
    文件大?。?/td> 534K
    代理商: LKP5741-5PD4
    Cassette Style
    AC-DC Converters
    KP Series
    Edition 01/01.2001
    18/23
    Table 11: Isolation
    Characteristic
    Input to
    Output to Output to
    Unit
    case
    output
    case
    output
    Electric
    Required according to
    1.5
    3.0
    ––
    kVrms
    strength
    IEC/EN 60950
    2.1
    4.2
    ––
    kV DC
    test voltage
    Actual factory test 1 s
    2.8
    5.6 1
    1.4
    0.14
    AC test voltage equivalent
    2.0
    4.0 1
    1.0
    0.1
    kVrms
    to actual factory test
    Insulation resistance at 500 V DC
    >300
    >100 2
    M
    For creepage distances and clearances refer to
    Technical Information: Safety.
    Standards and Approvals
    All AC-DC converters correspond to class I equipment.
    They are UL recognized according to UL 1950, UL recog-
    nized for Canada to CAN/CSA C22.2 No. 950-95 and LGA
    approved to IEC/EN 60950 standards.
    The units have been evaluated for:
    Building in
    Basic insulation between input and case, based on 250 V
    AC and 400 V DC
    Double or reinforced insulation between input and output,
    based on 250 V AC and 400 V DC
    Operational insulation between output and case.
    Operational insulation between output and output
    The use in a pollution degree 2 environment
    Connecting the input to a primary or secondary circuit
    which is subject to a maximum transient rating of 2500 V
    (overvoltage category III based on a 110 V primary cir-
    cuit, overvoltage category II based on a 230 V primary
    circuit).
    The AC-DC converters are subject to manufacturing sur-
    veillance in accordance with the above mentioned UL,
    CSA, EN and ISO 9001 standards.
    Isolation
    The electric strength test is performed as factory test in ac-
    cordance with IEC/EN 60950 and UL 1950 and should not
    be repeated in the field. Power-One will not honour any
    guarantee claims resulting from electric strength field tests.
    Important: Testing by applying AC voltages will result in
    high and dangerous leakage currents flowing through
    the Y-capacitors (see fig.:
    Block diagram).
    Leakage Currents in AC-DC operation
    Leakage currents flow due to internal leakage capacitance
    and RFI suppression Y-capacitors. The current values are
    proportional to the mains voltage and nearly proportional to
    the mains frequency and are specified at an input voltage of
    254 V (50 Hz) where phase, neutral and protective earth
    are correctly connected as required for class I equipment.
    V
    MI
    500
    1500
    10 k
    220 nF
    22 nF
    10061
    Under test conditions the leakage current flows through a
    measuring instrument (MI) as described in fig.:
    Measuring
    instrument for earth leakage current tests, which takes into
    account impedance and sensitivity of a person touching
    unearthed accessible parts. The current value is calculated
    by dividing the measured voltage by 500
    . If inputs of K-
    units are connected in parallel, their individual leakage cur-
    rents are added.
    Fig. 25
    Measuring instrument (MI) for earth leaking current tests
    according to IEC/EN 60950.
    Vo+
    Vo–
    N
    P
    10062
    N
    P
    MI for
    earth
    leakage
    current
    Fig. 26
    Test set-up
    Table 12: Leakage currents
    Characteristic
    Class I
    Unit
    LKP 5000
    Maximum earth
    Permissible according to IEC/EN 60950
    3.5
    mA
    leakage current
    Specified value at 254 V, 50 Hz
    0.82
    1 In accordance with IEC/EN
    60950 only subassemblies
    are tested in factory with this
    voltage.
    2 Tested at 100 V DC.
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