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    24V DC 10A 240W Switching Power Supply

    5 out of 5 based on 2 reviews | Write a review
    240W switching power can convert AC power to DC 12V (20A rated current) or 24V (10A rated current). Favorable price and high quality SMPS has short circuit, overload and overvoltage protection to make it ideal for wide use in power tools, household appliance, office devices and industrial control.
    SKU: ATO-SMPS-250-24
    30-day Returns
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    Delivery date: 6-12 days


    • Universal AC input range selectable by a switch
    • Protections: short circuit, overload and overvoltage
    • Forced air cooling by built-in DC fan
    • LED indicator for power on
    • 100% full load burn-in test
    • Low cost and high reliability


    Model ATO-S-250-12 ATO-S-250-24
    Output DC Voltage 12V 24V
    Rated Current 20A 10A
    Current Range 0 ~ 20A 0 ~ 10A
    Rated Power 240W 240W
    Ripple & Noise (Max.)(Note 2) 150mVp-p 150mVp-p
    Voltage Adjust Range 10 ~ 13.2V 20 ~ 26.4V
    Voltage Tolerance (Note 3) ±1.0% ±1.0%
    Line Regulation ±0.5% ±0.5%
    Load Regulation ±0.5% ±0.5%
    Setup, Rise, Holdup Time 200ms, 100ms, 20ms at full load
    Input Voltage Range 90 ~ 132VAC/180V~264VAC (selected by a switch) or 254 ~ 370VDC
    Frequency Range 47~63Hz
    Efficiency (Typ.) 80% 83%
    AC Current (Typ.) 4.9A/115V AC 2.8A/230V AC 
    Inrush Current (Typ.) Cold start: 50A/230V AC 
    Leakage Current <3.5mA/240V AC 
    Protection Overload 105~135% rated output power
    Protection type: Constant current limiting, recovers automatically after fault condition is removed.
    Overvoltage 13.8 ~ 16.2V 27.6 ~ 32.4V
    Protection type: Hiccup mode, recovers automatically after fault condition is removed.
    Environment Working Temperature -10 ~ +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 Safety Standards UL60950-1 Approved
    Withstand Voltage I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
    Isolation Resistance I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/70% RH
    Others MTBF ≥271.9K hrs MIN. MIL-HDBK-217F (25℃)
    Dimension 215*115*50mm (L*W*H)
    Weight 0.95kg
    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.

    Dimensions (Unit: mm)

    240W switched-mode power supply dimension


    24V DC Switching Power Supply Details

    SMPS Power Supply Applications

    • Power Tools
      Electric Saw, Drilling Machine, Ginder, Sand Blast Machine, Puching Machine, Weeding Machine, Air Compressor, etc.
    • Offices Devices
      Computer, Printer, LCD Monitor, Scanning Machine, etc.
    • Electrics & Household Appliance
      TV, VCRS, Radio, Dust Collector, Fan Lamp or LED Strip, Sewing Machine, Microwave Oven, Fridge/Freezr, Coffemarker, etc.
    • Industrial Equipemnt
      Monitoring Equipment, Shipping, Vehicle, Metalhalide Lamp, Solar System, Wind Power Generation, etc.

    Tips: Switching power supply vs. linear power supply

    Switching power supply (SMPS) depends on breakover of MOS transistors between upper and lower bridges. Current flows in through MOS transistors of upper bridge and then gather electric power at the coil by its storage function. At last, the power supply closes MOS transistors of the upper bridge and opens those of the lower bridge. The coil and capacitor would supply power to external part. Then, switching power supply would close MOS transistors of the lower bridge and reopen the upper bridge to let the power in. The foresaid process would be repeated. MOS transistors need to be opened alternatively, so it is called switching power supply.

    Linear power supply is different from switching power supply. It is equipped with no switches, so the upper hose keeps draining off. MOS transistors of some linear power supplies emit lots of heat. Excessive electric power is converted to heat. It can be found conversion efficiency of linear power supply remains very low. When components are stuck in high temperature, their life span will be reduced and their actual effect will be influenced.

    Existing reviews of 24V DC 10A 240W Switching Power Supply
    Fan for cooling in this unit
    Does this SMPS has fan in it for cooling?
    From: Bill H. | Date: 16/10/2018
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, it has built-in fan for cooling.
    Great 24vdc SMPS
    This 24V power supply is good. The power is stable and it works great in my project so far.
    From: Sam | Date: 29/06/2018
    Was this review helpful? Yes No (0/0)
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