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    參數(shù)資料
    型號(hào)： LM1501-9RD7AHFU
    廠商： POWER-ONE INC
    元件分類(lèi)： 電源模塊
    英文描述： 1-OUTPUT AC-DC REG PWR SUPPLY MODULE
    封裝： 168.50 X 111.20 MM, 38.70 MM HEIGHT, METAL, CASE M02, MODULE
    文件頁(yè)數(shù)： 18/24頁(yè)
    文件大?。?/td> 536K
    代理商： LM1501-9RD7AHFU
    M-Family
    DC-DC Converters <100 W
    Rugged Environment
    7 - 4
    Edition 2/96 - Melcher AG
    MELCHER
    The Power Partners.
    7.1
    Safety and Installation Instructions
    Safety
    For safety reasons, the power supply modules must be wired via the female connector H11 (according to DIN 41612,
    see section "Accessories") in order to meet national and international safety requirements!
    If the output circuit of a DC-DC converter is operator-acces-
    sible according to the IEC 950 related safety standards, it
    shall be an SELV circuit (Safety Extra Low Voltage circuit,
    i.e. a circuit, separated from mains by at least basic insula-
    tion, that is so designed and protected that under normal
    and single fault conditions, the voltage between any two
    conductors and between any conductor and earth does not
    exceed 60 V DC).
    In the following section an interpretation is provided of the
    IEC 950 safety standard with respect to the safety status of
    the output circuit. However, it is the sole responsibility of the
    installer or user to assure the compliance with the relevant
    and applicable safety standards.
    Since the M-family DC-DC converters provide double or re-
    inforced insulation between input and output, based on an
    input voltage of 250 V AC and 400 V DC, only operational
    insulation between the AC mains and the input of the DC-
    DC converter is needed according to the following table.
    If the table below is observed, the output of a DC-DC con-
    verter is considered to be an SELV circuit up to a nominal
    output voltage of 36 V.
    Table 3: Insulation concept
    Nominal
    Minimum required grade of
    Maximum Minimum required safety
    Minimum required grade
    Resulting
    mains
    isolation, to be provided by
    output
    status of the front end
    of isolation between the
    safety
    supply
    the AC-DC front end,
    voltage
    output circuit
    input and the output
    status
    voltage
    including mains supplied
    from the
    provided by the
    of the
    (AC)
    battery charger
    front end
    DC-DC converter
    DC-DC
    output
    ≤250V
    Operational
    ≤400 V 1
    Primary circuit
    Reinforced, based on
    SELV
    AC 250 V and DC 400 V 1
    circuit
    1 With LMZ converters, the maximum rated output voltage of the front end is 250 V according to IEC 950.
    AM...LM types correspond to class I equipment, while the
    C/D/ LMZ types correspond to class II equipment.
    In class I equipment the connector protective earthing pin is
    leading while it is omitted in class II equipment (no protec-
    tive earthing is required). Class II equipment provides rein-
    forced insulation between input and output circuitry and
    also between input and case. There are two class II Y-ca-
    pacitors connected in series between input and output cir-
    cuitry instead of having Y-capacitors connected to the case.
    During the production process, all transformers and each of
    the fully assembled modules are individually tested for elec-
    tric strength and earth continuity (see "Supplementary
    Data"). All electric strength tests are performed as factory
    tests.
    The UL 1950 recognition limits the maximum ambient op-
    erational temperature of the standard modules to
    TA =
    TA max –15 K. Option U allows the operation in applications
    where the full operational temperature range according to
    the relevant data sheet and UL 1950 recognition is re-
    quired.
    Important Advice
    Electric strength tests should not be repeated in the field. Improper test methods, for example overshooting or oscillating
    test voltages, voltage slopes exceeding 1 kV/
    s, internal Y-capacitors not carefully discharged, etc. can cause severe
    damage to switching devices and ICs. Melcher AG will not honour any guarantee/warranty claims resulting from high
    voltage field tests.
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