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    24V DC 2A 48W Switching Power Supply

    24V DC switching power supply convert universal AC to DC at 48V power and 2A current, easy to install in DIN rail mounting and it is safe, protecting against overload, overvoltage and over temperature, reliable SMPS suitable for the power tools, office devices, industrial control and electrical equipment.
    SKU: ATO-SMPS-45-24
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    Delivery date: 6-12 days


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


    Model ATO-DR-45-24
    DC Voltage 24V
    Rated Current 2A
    Current Range 0 ~ 2A
    Rated Power 48W
    Ripple & Noise (Max.)(Note 2) 480mVp-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 800ms, 60ms, 60ms/230V AC
    Input Voltage Range 85 ~ 264V AC or 120 ~ 370V DC
    Frequency Range 47~63Hz
    Efficiency (Typ.) 80%
    AC Current (Typ.) 1.5A/115V AC    0.75A/230V AC
    Inrush Current (Typ.) Cold start: 28A/115V AC    56A/230V AC
    Leakage Current <1mA/240V AC
    Protection Overload 105~150% rated output power
    Protection type: Constant current limiting, recovers automatically after fault condition is removed.
    Overvoltage 27.6V ~ 32.4V
    Protection type: Shut off o/p voltage, clamping by zener diode.
    Over temperature Tj 135℃ typically (U1) detect on heat sink of power transistor
    Protection type: Shut down output voltage, re-power on to recover.
    Environment Working Temperature -20 ~ +50℃
    Working Humidity 20~90% RH non-condensing
    Storage Temperature -20~+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
    Withstand Voltage I/P-O/P:3KVAC    I/P-FG:2.0KVAC    O/P-FG:0.5KVAC
    Isolation Resistance I/P-O/P, I/P-FG, O/P-FG: 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 ≥364.6K hrs MIN. MIL-HDBK-217F (25℃)
    Dimension 93*78*56mm (L*W*H)
    Weight 0.31kg
    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)

    48W switched mode power supply dimension


    48W DC Switching Power Supply Details

    Tips: User guide of switching power supply (SMPS)

    1. Output calculation
      Switching power supply works at an efficiency of over 80%. When making a selection of output current, users shall measure and calculate maximum sock current of electric equipment to ensure higher cost-performance ratio of selected switching power supply.
    2. Ground connection
      In comparison with linear power supply, switching power supply generates more noise. Electric devices which are sensitive to common mode noise shall use ground connection or adopt shield measures. Measures applied to switching power supply must comply with EMC standard. Therefore, switching power supply is often equipped with EMC electromagnetic compatible filter. For example, switching power supply produced by ATO connects its FG terminal to ground or shell to meet foresaid requirement for electromagnetic compatibility.
    3. Protective circuit
      Switching power supply must be provided with overvoltage protection, overheat protection and short circuit protection features.
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