1. Introduzione
This manual provides detailed instructions for the safe and efficient operation of your DROK AC 110/220V to DC 0-24V 20A 480W Adjustable Switching Power Supply. Please read this manual thoroughly before use and retain it for future reference.
The DROK switching power supply is designed to convert AC input voltage (110V or 220V) to a stable and adjustable DC output voltage ranging from 0-24V, with a maximum current output of 20A and a total power of 480W. It features an LED display for real-time voltage and current monitoring, a cooling fan for temperature management, and built-in protection mechanisms.
2. Precauzioni di sicurezza
WARNING: Improper use can lead to electric shock, fire, or damage to the device and connected equipment. Always follow these safety guidelines.
- Assicurare il volume di inputtage switch (110V/220V) is set correctly according to your local power supply before connecting the unit to AC power. The default setting is 220V.
- Do not exceed the maximum output current of 20A. Ensure connected devices require less than 20A.
- This device is for indoor use only. Avoid exposure to moisture, high temperatures, or corrosive environments.
- Ensure proper ventilation. Do not block the cooling fan or vents.
- Disconnect power before making any connections or adjustments to the wiring.
- Solo personale qualificato dovrebbe eseguire l'installazione e la manutenzione.
- The power supply is equipped with overload, overvoltage, and short-circuit protection. However, these are not substitutes for careful operation.
3. Specifiche del prodotto
| Caratteristica | Specificazione |
|---|---|
| Marca | DROK |
| Modello | DC 0-24V 20A 480W |
| Ingresso volumetage | AC 110V / 220V (Switchable) |
| Volume di uscitatage Gamma | CC 0-24 V (regolabile) |
| Corrente di uscita | Max 20A (Load Dependent) |
| Potenza di uscita | Massimo 480W |
| Voltage Precisione | 0.1V |
| Display | LED for Voltage e attuale |
| Metodo di raffreddamento | Built-in Cooling Fan, Heatsink |
| Caratteristiche di protezione | Overload Protection, OvervoltageProtezione, protezione da cortocircuito |
| Dimensioni | Circa 215 mm x 113 mm x 50 mm (8.46 pollici x 4.45 pollici x 1.97 pollici) |
| Peso | Circa 890 g |
4. Istruzioni per l'installazione
Follow these steps to set up your DROK switching power supply:
4.1 Disimballaggio e ispezione
Estrarre con cautela l'alimentatore dalla confezione. Ispezionare l'unità per verificare la presenza di eventuali danni fisici. In caso di danni, non procedere con l'installazione e contattare l'assistenza clienti.
4.2 Ingresso Voltage Selezione
Prima di collegare l'alimentazione CA, verificare il volume di ingressotage switch on the side of the unit. The switch allows selection between 110V and 220V. The default setting is 220V. Adjust this switch to match your local mains voltage to prevent damage to the power supply.

Image: Input voltage selection switch. Ensure this is set correctly for your region.
4.3 Collegamenti di cablaggio
The power supply features a terminal block for input and output connections. Refer to the diagram below for correct wiring. Ensure all connections are secure and properly insulated.
- Ingresso CA: Connect your AC mains power to the 'N' (Neutral) and 'L' (Live) terminals. The '⏚' (Ground) terminal should be connected to earth ground for safety.
- Uscita CC: Connect your DC load to the '+V' (Positive) and '-V' (Negative) terminals.

Image: Wiring terminal block and digital display. Connect AC input to N, L, and Ground. Connect DC output to +V and -V.
CAUTION: Incorrect wiring can cause severe damage to the power supply and connected devices, and poses a risk of electric shock.
5. Istruzioni per l'uso
Once the power supply is correctly wired and the input voltage is selected, you can begin operation.
5.1 Accensione
Connect the AC power cord to the mains supply. The LED display will illuminate, showing the current output voltage e corrente.

Image: LED display showing voltage and current. This display provides real-time output readings.
5.2 Regolazione del volume di uscitatage
Il volume di uscitatage can be adjusted using the potentiometer knob located on the front panel. Rotate the knob clockwise to increase the voltage and counter-clockwise to decrease it. The LED display will show the adjusted voltage in tempo reale.

Image: Potentiometer knob for voltage adjustment. Turn to set desired output voltage.
NOTE: The output current is load-dependent and cannot be directly adjusted by a knob. The maximum output current is 20A. Ensure your load does not draw more than 20A.
5.3 Funzionamento della ventola di raffreddamento
The built-in cooling fan operates automatically when the internal temperature reaches a certain threshold, ensuring the power supply remains within a safe operating temperature range. The fan is designed to operate quietly.

Image: Cooling fan grill on top of the unit. The fan activates automatically to maintain optimal temperature.
6. Manutenzione
Una manutenzione regolare garantisce la longevità e l'affidabilità del vostro alimentatore.
- Pulizia: Periodically clean the exterior of the unit with a soft, dry cloth. Ensure the ventilation openings and fan are free from dust and debris. Do not use liquid cleaners or solvents.
- Ventilazione: Ensure the power supply is always placed in a well-ventilated area. Do not obstruct the airflow around the unit.
- Connessioni: Periodically check all wiring connections to ensure they are secure. Loose connections can lead to poor performance or safety hazards.
- Magazzinaggio: Quando non viene utilizzato per lunghi periodi, conservare l'alimentatore in un luogo fresco e asciutto, lontano dalla luce solare diretta e dall'umidità.
WARNING: Do not attempt to open the casing of the power supply. There are no user-serviceable parts inside, and doing so will void the warranty and expose you to dangerous voltages.
7. Risoluzione Dei Problemi
If you encounter issues with your DROK switching power supply, refer to the following table for common problems and solutions.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| No power / LED display off |
|
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| Volume di uscitatage instabile o errato |
|
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| No output current / Low current reading |
|
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| Ventola di raffreddamento non funzionante |
|
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If the problem persists after attempting these solutions, please contact DROK customer support.
8. Garanzia e supporto
This DROK power supply comes with a one-year warranty from the date of purchase. During this period, DROK will provide prompt support for any product issues or defects under normal use conditions.
La garanzia non copre i danni causati da:
- Installazione o cablaggio non corretti.
- Exceeding specified input/output parameters.
- Modifiche o riparazioni non autorizzate.
- Physical damage, misuse, or neglect.
- Natural disasters or other external causes.
For warranty claims or technical support, please contact DROK customer service through the retailer where you purchased the product or visit the official DROK websito per le informazioni di contatto.





