1. Introducere
This manual provides essential information for the installation, operation, and maintenance of the FERMAX 4825 DUOX Plus DIN10 24VDC 2.5A Power Supply with Filter. This unit is designed to provide stable and reliable power to various FERMAX DUOX Plus intercom system components.
The FERMAX 4825 is a DIN rail mountable power supply, featuring a 24V DC output at 2.5A, and an integrated filter for optimal performance within DUOX Plus systems. It is protected by an electronic fuse to ensure safety and longevity.
2. Produs terminatview

Figura 1: Faţă view of the FERMAX 4825 DUOX Plus DIN10 Power Supply. The image displays the input terminals (N, L), output terminals (24V, 2.5A), Power Bus and Prev Bus terminals, and LED indicators for ON and OVERLOAD status. Key specifications like input voltage (100-240V; 1.2A, 50-60Hz) and output voltage (24V; 2.5A) are visible, along with the FERMAX brand logo and model number REF. 4825.
The FERMAX 4825 power supply is equipped with the following key features:
- Vol. De intraretage: Funcționează cu un volum de intraretage range of 100-240V AC, 50-60 Hz, ensuring compatibility with standard electrical grids.
- Ieșire Voltage: Provides a stable 24V DC output at 2.5A, suitable for various DUOX Plus components.
- Electronic Fuse Protection: Features an electronic fuse that protects the unit from short circuits. In case of a short circuit, the primary voltage supply must be disconnected for approximately one minute to reset the protection.
- Filtru integrat: Includes an integrated filter to enhance signal quality and system stability within DUOX Plus installations.
- DIN10 Mounting: Designed for easy installation on a DIN rail, making it suitable for electrical cabinets and distribution boards.
- Indicatoare LED: Equipped with "ON" and "OVERLOAD" LED indicators for quick status monitoring.
3. Instrucțiuni de siguranță
- Instalarea trebuie efectuată de către personal calificat, în conformitate cu codurile și reglementările electrice locale.
- Ensure the main power supply is disconnected before performing any installation, wiring, or maintenance.
- Do not expose the unit to moisture, water, or extreme temperatures.
- Nu deschideți c.asing al sursei de alimentare. În interior nu există piese care să poată fi reparate de utilizator.
- Verificați volumul de intraretage and frequency match the specifications of the power supply before connection.
4. Configurare și instalare
4.1 Montare
- Select a suitable location within an electrical cabinet or distribution board that allows for proper ventilation.
- Mount the FERMAX 4825 power supply onto a standard DIN rail. Ensure it is securely fastened.
4.2 Conexiuni de cablare
Refer to Figure 1 for terminal locations.
- Putere de intrare (AC): Connect the main AC power supply to the terminals labeled N (Neutral) and L (Line). Ensure proper polarity. The input range is 100-240V AC, 50-60 Hz.
- Conexiune la pământ: Connect the protective earth ground to the terminal marked with the ground symbol.
- Output Power (DC): Connect the DUOX Plus equipment requiring 24V DC power to the terminals labeled + şi - under "OUTPUT". The output is 24V DC, 2.5A.
- Power Bus / Prev Bus: Connect the DUOX Plus system bus lines to the "POWER BUS" and "PREV BUS" terminals as per your specific DUOX Plus system diagram. These terminals are typically used for data and power distribution within the intercom system.
Important: Double-check all wiring connections before applying power to prevent damage to the unit or connected equipment.
5. Instrucțiuni de utilizare
5.1 Pornire
- After ensuring all connections are secure and correct, switch on the main AC power supply to the unit.
- The "ON" LED indicator on the front panel should illuminate, indicating that the power supply is active and providing output voltage.
5.2 Indicatori de stare
- LED aprins: Illuminates when the power supply is receiving input power and operating normally.
- LED SUPRASARCINĂ: Illuminates if the output current exceeds the rated 2.5A, or if a short circuit is detected on the output.
6. Întreținere
The FERMAX 4825 power supply is designed for reliable, long-term operation with minimal maintenance. Follow these guidelines:
- curatenie: Periodically clean the exterior of the unit with a soft, dry cloth. Do not use liquid cleaners or solvents. Ensure the unit is powered off before cleaning.
- Ventilare: Ensure that the ventilation openings are not obstructed to allow for proper air circulation and cooling.
- Verificări de conectare: Occasionally check all wiring connections to ensure they remain tight and secure.
7. Depanare
- No "ON" LED illumination:
- Check if the main AC power supply is connected and active.
- Verify the input wiring (N, L) is correct and secure.
- "OVERLOAD" LED illuminates:
- This indicates an overcurrent condition or a short circuit on the 24V DC output or connected DUOX Plus bus lines.
- Immediately disconnect the main AC power supply to the unit.
- Inspect all connected DUOX Plus equipment and wiring for short circuits or excessive load.
- After resolving the issue, wait approximately one minute before reconnecting the main AC power supply to allow the electronic fuse to reset.
- If the problem persists, the connected equipment may be drawing too much current, or the power supply itself may be faulty.
- Nu Voltage / Sin Tensión / Nicht Spannung:
- This label on the unit indicates the absence of voltage. If the "ON" LED is off and there is no output, refer to the "No 'ON' LED illumination" troubleshooting steps.
8. Specificații
| Caracteristică | Caietul de sarcini |
|---|---|
| Marca | FERMAX |
| Model | 4825 (F04825) |
| Vol. De intraretage | 100-240V AC |
| Frecvența de intrare | 50-60 Hz |
| Curent de intrare | 1.2 A |
| Ieșire Voltage | 24V DC |
| Curent de ieșire | 2.5 A |
| Putere de ieșire | 60 wați |
| Metoda de răcire | Air Cooling / Ventilator |
| Montare | DIN Rail (DIN10) |
| Protecţie | Electronic Fuse Protected |
| Greutate | 96 grame |
Notă: Specificațiile pot fi modificate fără notificare prealabilă.
9. Garanție și asistență
FERMAX products are manufactured to high-quality standards. This product includes a satisfaction guarantee and quality customer service.
For technical support, warranty claims, or further assistance, please contact your local FERMAX distributor or visit the official FERMAX website. Please have your product model (4825) and serial number (if applicable) ready when contacting support.
Pentru mai multe informații, puteți vizita FERMAX official website-ul.





