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Regulated Power Supply Unit  (30V5A)

Regulated Power Supply Unit (30V5A)

  • Brand: Atten
  • Product Code: EQ-APS-3005D
  • Availability:
  • Warranty Period: 12 months
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  • $100.00
  • Ex Tax: $100.00
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  • 3 or more $95.00
  • 10 or more $80.00
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Power Supply is essential for electronic laboratory and for the maker lab too. And we are getting this small and rugged adjustable power supply for you to work on your digital making project!

This is an adjustable DC Power Supply, with a maximum output voltage of  30VDC (adjustable with two knobs), a maximum output current of 5A (adjustable with two knobs), and with the accuracy of 100 mA. It is a DC regulated power supply! Here is a short demo of using the power supply to drive a motor with wheel, adjusting the fine and coarse knobs for both the voltage and current:

This power supply belongs to high-precision single-output DC power supply, with a continuously adjustable output voltage and current rating range, constant voltage constant current (CV / CC) automatic conversion mode, dual independent display DRO head output voltage and output current, multiple protection features include current limiting blood pressure, short circuit protection, over-temperature protection, designed for use in factory production lines, maintenance, testing, laboratories, and other places, but also the communications industry essential equipment. Of course, any makers can use it too :)


  • Model: APS3005D
  • Adjustable Bench Top DC power supply
  • Output Voltage Range: DC 0V - 30V (maximum)
    • Two knobs for adjustment: Fine and Coarse
  • Output Current Range: 0 - 5A (maximum)
    • Tow knobs for adjustment: Fine and Coarse
  • Three 7-segment digits for each Current and Voltage value, auto adjustable floating point.
  • Constant Current and Constant Voltage modes, auto-adjust
  • Constant Current indicator LED: Red
  • Constant Voltage indicator LED: Green
  • Three Banana Jack Socket for output: Negative (Black), Earth (Green), Positive (Red)
  • AC Input: AC220V ± 5%, 50Hz, with UK Plug for Malaysia and Singapore
  • Voltage Regulation:
    • Source adjustment rate: ≤0.05% + 3mV
    • Load regulation: ≤0.1% + 3mV (rated current ≤3A)
    • ≤0.1% + 5mV (rated current> 3A)
    • Ripple Noise: ≤3mVrms (5Hz ~ 1MHz)
  • Current Regulation:
    • Source regulation: ≤0.2% + 3mA
    • Load regulation: ≤0.2% + 6mA
    • Ripple Noise: ≤3mArms
    • Recovery time: ≤300μs (load rate of change of 50%, the minimum load 0.5A)
    • Ammeter: 3 LED display
    • Voltmeter: 3 LED display
  • Rated Power: 150W
  • High-pressure test:
    • Leakage current: ≤1mA (Test conditions: input to ground 1700VAC / 2s)
    • Insulation resistance: ≥7MΩ (Test conditions: input to ground 500VDC / 5s)
  • Work environment (indoor):
    • Elevation: ≤2000m
    • Ambient temperature: 0 ~ 40Celsius
    • Relative humidity: ≤80%
  • Storage temperature:
    • Ambient temperature: 10 ~ 70Celsius
    • Relative humidity: ≤70%
  • Compact and lightweight
  • Performance:
    • constant voltage / constant current mode of operation
    • coarse to fine-tune the voltage and current
  • Protection:
    • Overload protection
    • Overheat protection
    • Short circuit protection

Constant voltage constant current CV / CC Principles:

This power supply will automatically convert to constant voltage or constant current mode, depending on load current and the current limit values. When the current value exceeds the output current limit, the device will work in constant current mode, the Red indicator LED (Constant Current) on the front panel will light up, the internal circuit will control the output current value on the set value. Due to the limited output power, the output voltage will be lower than the set value. When the output current is lower than the set value, the device will automatically convert to a constant voltage conditions. How cool is that :)

Fuse warning:

  • Input voltage AC220V ± 10%, 50Hz
  • Fuse Type: 3A / 250V
  • Before power-up confirmed the fuse is installed.
  • To prevent a fire, make sure that the replacement fuse specified specifications.
  • Before changing the fuse disconnect the power cord.
  • Before replacing the fuse should confirm the cause of the blown fuse.

Packing List:

  • 1 x Regulated Power Supply Unit  (30V5A)
  • 1 x UK Plug AC Power Cord Cable 1m
Is this a linear or a switching power supply? ( Muhammad Naqueudin, 19/05/2020 )
Not answered yet.
May I know, if this will still works on a 220v 60hz powerline?
I've searched the net but all I got was vague answers like, common appliances will still work on different frequency or even some engineering equipment will work and not work. I'm a beginner in electronics, so may I know if this will still work on a 220v/60hz powerline?
( Carlo Gonzales , 08/04/2020 )
Hi, you may drop an email to support@cytron.io for further inquiry. Thanks :)

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Tags: Robotics, Power Supply, Adjustable, DC, Direct Current, Constant Current, Constant Voltage