參數(shù)資料
        型號(hào): FM1901-9PD8H
        元件分類: 電源模塊
        英文描述: 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE
        封裝: METAL, CASE M02, MODULE
        文件頁數(shù): 10/25頁
        文件大小: 569K
        代理商: FM1901-9PD8H
        Cassette Style
        DC-DC Converters
        M Series
        Edition 01/01.2001
        18/25
        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
        Table 15: 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.
        Safety of Operator Accessible Output Circuit
        If the output circuit of a DC-DC converter is operator acces-
        sible, it shall be an SELV circuit according to the IEC/EN
        60950 related safety standards.
        Since the M series DC-DC converters provide double or re-
        inforced insulation between input and output, based on a
        rated primary input voltage of 250 V AC and 400 V DC (for
        class II units 250 V AC and DC), only operational insulation
        is needed between the AC mains and the input of the DC-
        DC converter. This means that there is no need for an elec-
        trical isolation between the AC mains circuit and the DC-DC
        converter input circuit to cause the output of an M series
        DC-DC converter to be an SELV circuit. Only voltage
        adaption and rectification to the specified input voltage
        range of the DC-DC converter is needed.
        The following table shows a possible installation configura-
        tion, compliance with which causes the output circuit of the
        DC-DC converter to be an SELV circuit according to IEC/
        EN 60950 up to a configured output voltage (sum of nomi-
        nal voltages if in series or +/– configuration) of 36 V.
        However, it is the sole responsibility of the installer to as-
        sure the compliance with the relevant and applicable safety
        regulations. More information is given in:
        Technical Infor-
        mation: Safety.
        Table 16: Safety concept leading to an SELV output circuit
        Conditions
        Front end
        DC-DC converter
        Result
        Nominal
        Minimum required grade
        Maximum rated
        Minimum required
        Equip-
        Measures to achieve the
        Safety status
        supply
        of insulation, to be pro-
        DC output voltage
        safety status of the
        ment
        specified safety status of
        of the DC-DC
        voltage
        vided by the AC-DC front
        from the front end
        front end output
        the output circuit
        converter
        end, including mains
        circuit
        output circuit
        supplied battery charger
        Mains
        Operational (i.e. there is
        ≤400 V 1 (The
        Primary circuit
        Class I
        Double or reinforced
        SELV circuit
        ≤250 V AC no need for electrical
        rated voltage
        (A...LM) insulation, based on
        isolation between the
        between any input
        250 V AC and 400 V DC
        mains supply voltage and
        pin and earth can
        (provided by the DC-DC
        theDC-DC converter
        be up to 250 V AC
        converter) and earthed
        input voltage)
        or 400 V DC)
        case 2
        ≤250 V 1 (The
        Class II
        Double or reinforced
        rated voltage
        (CMZ,
        insulation, based on
        between any input
        DMZ,
        250 V AC or DC (provided
        pin and earth can
        LMZ)
        by the DC-DC converter)
        be up to 250 V AC
        or DC)
        1 The front end output voltage should match the specified operating input voltage range of the DC-DC converter.
        2 The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950.
        guarantee/warranty claims resulting from electric strength
        field tests.
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