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    24V DC 12.5A 300W Switching Power Supply

    Favorable price and high quality switching power supply features 24V DC output voltage, 12.5A rated current and 300W rated power. It is PWM design to ensure the stability of output voltage, widely used in almost all of the electronic equipment.
    SKU: ATO-SMPS-300-24
    Free shipping
    Delivery date: 6-12 days


    • Univeral AC input/Full range
    • Protections: short circuit, overload and overvoltage
    • Forced air cooling by built-in DC fan
    • PWM control and regulated
    • 100% full load burn-in test
    • Low cost


    Basics Model ATO-S-300-24
    Dimension 215*115*50mm (L*W*H)
    Weight 1.07kg
    MTBF 234.3K hrs min. MIL-HDBK-217F ( 25°c )
    Output DC Voltage 24V
    Rated Current 12.5A
    Current Range 0~12.5A
    Rated Power 300W
    Ripple & Noise (max.)( Note 2) 150mVp-p
    Voltage Adjust Range 20~26.4V
    Voltage Tolerance (Note 3) ±1.0%
    Line Regulation ±0.5%
    Load Regulation ±0.5%
    Setup, Rise, Holdup time 200ms, 50ms, 20ms at full load
    Input Voltage Range 90~132V AC/180~264V AC(selected by switch) or 254~370V DC
    Frequency Range 47~63Hz
    Efficiency(Typ.) 81%
    AC Current 6.5A/115V AC; 4A/230V AC
    Inrush Current (max.) 50A/115VAC 50A/230VAC
    Leakage Current <3.5mA / 240V AC
    Protection Overload 105~150% rated output power
    Protection type: Hiccup mode, recovers automatically after fault condition is removed
    Overvoltage 27.6V~32.4V
    Protection type: Hiccup mode, recovers automatically after fault condition is removed
    Safety 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 ~ +50°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
    Fan on/ off Control RTH3 ≥70°C FAN ON, ≤60°C FAN OFF, ≥85°C output shutdown
    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.

    Tips: How to maintain switching power supply?
    In case of power failure: users can carry out maintenance by visual check, smelling, asking and measuring.

    • Visual check: Open shell of the power supply to check whether the power fuse has been blown. Check internal part of the power supply. If components on PCB are burned out, users shall check surrounding components and relevant circuit components.
    • Smelling: Check whether there is burnt smell in internal part of the power supply and whether there is burnt-out component.
    • Asking: Ask damaging process of the power supply and check whether there is violative operation.
    • Measuring: Use multimeter to measure voltage at both ends of the HV capacitor before powering on.
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