(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories

    24V DC 12.5A 300W Switching Power Supply

    5 out of 5 based on 1 reviews | Write a review
    Favorable price and high quality 24V DC 12.5A switching power supply convert full range of AC to DC at the 300W rated power. Compact size SMPS power supply is cooled by built-in DC fan, with short circuit, overload and overvoltage protection, widely used in almost all of the electronic equipment.
    SKU: ATO-SMPS-300-24
    30-day Returns
    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, compact size and high efficiency


    Model ATO-S-300-24
    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 ~ 132VAC/180V~264VAC (selected by a switch) or 254 ~ 370VDC
    Frequency Range 47~63Hz
    Efficiency (Typ.) 81%
    AC Current (Typ.) 6.5A/115V AC 4A/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 27.6~32.4V
    Protection type: Hiccup mode, recovers automatically after fault condition is removed.
     Over temperature RTH3 ≥65°C FAN ON, ≤55°C FAN OFF, ≥80°C output shut down.
    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 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 ≥234.3K hrs MIN. MIL-HDBK-217F (25℃)
    Dimension 215*115*50mm (L*W*H)
    Weight 1.1kg
    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)

    300W switched mode power supply dimensionSMPS power supply terminal pin number assignment


    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: How to maintain switching power supply (SMPS)?

    In case of power failure, users can carry out maintenance by visual check, smelling, asking and measuring.

    • Visual check: Open shell of the switching power supply to check whether the SMPS fuse has been blown. Check internal part of the SMPS 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 SMPS power supply and whether there is burnt-out component.
    • Asking: Ask damaging process of the switching 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.
    Existing reviews of 24V DC 12.5A 300W Switching Power Supply
    Good steady 24V switching power supply
    I bought two of these power supplies, 300w and 400w. Perfect for running two pumps in a vacuum system. The power supply ran 8hrs per day for two weeks without an issue. Good steady 24vdc power and meets the system amperage requirements.
    From: Hans | Date: 29/10/2019
    Was this review helpful? Yes No (0/0)
    Load more reviews...
    Write your review for 24V DC 12.5A 300W Switching Power Supply
    • Only registered users can write reviews
    • Bad
    • Excellent
    Customers who bought this item also bought

    24V DC 16.6A 400W Switching Power Supply

    SKU: ATO-SMPS-400-24
    Competitive price 400W switching power supply (SMPS) has univeral AC input and output voltage 24V DC with high performance and low price, ideal DC power supply with for applications in the industry like drilling machine, air compressor, solar system, wind power generation etc.