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    24V DC 1.5A 36W Switching Power Supply

    Compact size 24V DC switching power supply is installed in DIN rail with 36W rated power and 1.5A rated current, low cost and high quality SMPS, with short circuit, overload and overvoltage protection, ideal power supply for office, home and industrial equipment.
    SKU: ATO-SMPS-30-24
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    Delivery date: 6-12 days


    • Universal AC input/Full range
    • Protections: short circuit, overload and overvoltage
    • Cooling by free air convection
    • Installed on DIN rail TS-35/7.5 or 15
    • Isolation class Ⅱ
    • LED indicator for power on
    • 100% full load burn-in test


    Model ATO-DR-30-24
    DC Voltage 24V
    Rated Current 1.5A
    Current Range 0 ~ 1.5A
    Rated Power 36W
    Ripple & Noise (Max.)(Note 2) 150mVp-p
    Voltage Adjust Range 21.6 ~ 26.4V
    Voltage Tolerance (Note 3) ±1.0%
    Line Regulation ±1.0%
    Load Regulation ±1.0%
    Setup, Rise, Holdup Time 100ms, 30ms, 100ms/230V AC    100ms, 30ms, 21ms/115V AC
    Input Voltage Range 85 ~ 264V AC or 120 ~ 370V DC
    Frequency Range 47~63Hz
    Efficiency (Typ.) 83%
    AC Current (Typ.) 0.88A/115V AC    0.48A/230V AC
    Inrush Current (Typ.) Cold start: 15A/115V AC    30A/230V AC
    Protection Overload 105~160% rated output power
    Protection type: Constant current limiting, recovers automatically after fault condition is removed.
    Overvoltage 27.6V ~ 32.4V
    Protection type: Shut down output voltage, re-power on to recover.
    Environment Working Temperature -20 ~ +60℃
    Working Humidity 20~90% RH non-condensing
    Storage Temperature -40~+85℃
    Storage Humidity 10~95% RH non-condensing
    Temperature Coefficient ±0.03%/℃ (0~50℃)
    Vibration 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
    Safety & EMC (Note 4) Safety Standards UL60950-1, TUV EN60950-1 Approved; Design refer to EN50178
    Withstand Voltage I/P-O/P: 3KVAC
    Isolation Resistance I/P-O/P: 100M Ohms/500VDC/25℃/70% RH
    EMC Emission Compliance to EN55022 (CISPR22) Class B, EN61000-3-2, -3
    EMC Immunity Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, EN61000-6-2, EN61204-3, heavy industry level, criteria A
    Others MTBF ≥441.5K hrs MIN. MIL-HDBK-217F (25℃)
    Dimension 78*93*56mm (W*H*D)
    Weight 0.27kg
    Note 1. All parameters NOT specially mentioned are measured at 230V AC input, rated load and 25°C of ambient temperature.
    2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
    3. Tolerance includes set up tolerance, line regulation and load regulation.
    4. The switching power supply is considered a component which will be installed into final equipment. Please make sure that the final equipment still meets EMC directives.

    Dimensions (Unit: mm)

    36W switched mode power supply dimension


    36W DC Switching Power Supply Details

    Tips: Structure and functions of switching power supply (SMPS)

    Switching power supply is composed of input power grid filter, input rectifier and filter, inverter, output rectifier and filter, control circuit, and protective circuit. Functions of each component are shown below:

    1. Input power grid filter: the filter is used to eliminate noise generated by start of electric motor, switches of devices, and thunder strike. At the same time, it is also used to prevent high-frequency noise generated by switching power supply from spreading into power grid.
    2. Input rectifier and filter: rectify and filter input voltage of power grid and provide Dc voltage for convertor.
    3. Invertor: invertor is a key part of switching power supply. It converts DC voltage to high-frequency AC voltage. In addition, it also isolates output part from input power grid.
    4. Output rectifier and filter: output rectifier and filter convert high-frequency AC voltage output by convertor to DC voltage through rectification and filtering. At the same time, it could alleviate the influence of high-frequency noise on load.
    5. Control circuit: control circuit detects output DC voltage to make a comparison with benchmark voltage and process with amplification to modulate pulse width of oscillator, control transformer and regulate voltage.
    6. Protective circuit: when switching power supply is bothered with overvoltage, overcurrent, or short circuit, the protective circuit will cut off power to protect load and the switching power supply.
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