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    24V DC 10A 240W Switching Power Supply

    5 out of 5 based on 2 reviews | Write a review
    24V DC Switching Power Supply has dual input voltage selection of 110V/220V AC by switch. SMPS is PWM design, overload and overvoltage protection to make sure its safety in use and high stability, so it is widely used in all kinds of areas.
    SKU: ATO-SMPS-250-24
    Free shipping
    Delivery date: 6-12 days


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


    Basics Model ATO-S-250-24
    Dimension 215*115*50mm (L*W*H)
    Weight 0.95kg
    MTBF 271.9K hrs min. MIL-HDBK-217F (25°C)
    Output DC Voltage 24V
    Rated Current 10A
    Current Range 0~10A
    Rated Power 240W
    Ripple & Noise (max.)( Note 2) 120mVp-p
    Voltage Adjust Range 21.6~26.4V
    Voltage Tolerance (Note 3) ±1.0%
    Line Regulation ±0.5%
    Load Regulation ±0.5%
    Setup, Rise, Holdup time 800ms, 50ms, 19ms at full load
    Input Voltage Range 90~132V AC/176~264V AC(selected by switch) or 248~370V DC
    Frequency Range 47~63Hz
    Efficiency(Typ.) 81.5%
    AC Current 4.8A/115V AC; 2.8A/230V AC
    Inrush Current (Typ.) Cold start 45A/230V AC
    Leakage Current <2mA / 240V AC
    Protection Overload 105~150% rated output power
    Protection type: Hiccup mode, recovers automatically after fault condition is removed
    Overvoltage 27.6 ~ 32.4V
    Protection type: Hiccup mode, recovers automatically after fault condition is removed
    Safety Safety Standards Approved by UL60950-1
    Withstand Voltage I/P-O/P: 1.5KV AC I/P-FG: 1.5KV AC O/P-FG: 0.5KV AC
    Isolation Resistance I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500V DC/ 25°C / 70% RH
    Environment Working Temperature -10 ~ +60°C
    Working Humidity 20~90% RH (non-condensing)
    Storage Temperature -20~+85°C
    Humidity 10~95% RH (non-condensing)
    Temperature Coefficient ±0.03%/°C (0~50°C)
    Vibration 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
    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.


     250W Switching Power Supply dimensions

    Tips: Switching power supply versus linear power supply
    Switching power supply 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
    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)
    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.
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