• 參數(shù)資料
    型號: LM3020-9ERD2AH
    廠商: POWER-ONE INC
    元件分類: 電源模塊
    英文描述: 3-OUTPUT 50 W AC-DC REG PWR SUPPLY MODULE
    封裝: METAL, CASE M02, MODULE
    文件頁數(shù): 8/24頁
    文件大小: 982K
    代理商: LM3020-9ERD2AH
    Cassette Style
    AC-DC Converters
    M Series
    Edition 5/5.2000
    16/24
    Standards and approvals
    LM AC-DC converters correspond to class I equipment,
    while LMZ types correspond to class II equipment. All types
    are UL recognized according to UL 1950, UL recognized 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,
    Supplementary insulation between input and case,
    based on 250 V AC and 400 V DC (class I equipment)
    Double or reinforced insulation between input and case,
    based on 250 V AC and DC (class II equipment)
    Isolation
    The electric strength test is performed as a factory test in
    accordance with IEC/EN 60950 and UL 1950 and should
    not be repeated in the field. Power-One will not honour any
    guarantee/warranty claims resulting from electric strength
    field tests.
    Double or reinforced insulation between input and out-
    put, based on 250 V AC and 400 V DC
    Operational insulation between output(s) and case
    Operational insulation between the outputs
    The use in a pollution degree 2 environment
    Connecting the input to a primary or secondary circuit
    with a maximum transient rating of 2500 V (overvoltage
    category III based on a 110 V primary circuit, overvolt-
    age 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 with ISO 9001 standards.
    Important: Testing by applying AC voltages will result in
    high and dangerous leakage currents flowing through
    the Y-capacitors (see fig.:
    Block diagram).
    Table 16: Isolation
    Characteristic
    Input to
    Output to Output to Output to
    Unit
    case
    output
    case
    output
    class I
    class II
    class I
    class II
    option H
    Electric
    Required according to
    1.5
    3.0
    3.0 1
    3.0
    0.5
    -
    kVrms
    strength
    IEC/EN 60950
    2.1
    4.2
    4.2 1
    4.2
    0.7
    -
    kV DC
    test voltage
    Actual factory test 1 s
    2.8
    5.6
    5.6 1
    5.6
    1.4
    2.8
    0.3
    AC test voltage equivalent
    2.0
    4.0
    4.0 1
    4.0
    1.0
    2.0
    0.2
    kVrms
    to actual factory test
    Insulation resistance at 500 V DC
    >300
    >100 2
    M
    1 In accordance with IEC/EN 60950 only subassemblies are tested in factory with this voltage.
    2 Tested at 300 V DC.
    For creepage distances and clearances refer to:
    Technical Information: Safety.
    Protection Degree
    Condition: Female connector fitted to the unit.
    IP 40: All units, except those with options P, A or K, and
    except those with option D or V with potentiometer.
    IP 30: All units fitted with options A or K, except those with
    option P, and except those with option D or V with
    potentiometer.
    IP 20: All units fitted with option P, or with option D or V
    with potentiometer.
    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
    264 V (50 Hz) where phase, neutral and protective earth
    are correctly connected as required for class I equipment.
    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 and/or
    outputs of M-units are connected in parallel, their individual
    leakage currents are added.
    V
    MI
    500
    1500
    10 k
    220 nF
    22 nF
    10061
    Fig. 18
    Measuring instrument (MI) for earth leakage current tests
    according to IEC/EN 60950.
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