Įvadas
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the MEAN WELL RD-65A Dual Output Switching Power Supply. Please read this manual thoroughly before using the product and retain it for future reference.

Figure 0: MEAN WELL RD-65A Dual Output Switching Power Supply.
The RD-65A is a 66W dual output power supply designed for various electronic applications, providing stable 5V and 12V DC outputs.
Produkto savybės
- Universalus kintamosios srovės įvestis / Visas diapazonas
- Apsauga: trumpasis jungimas / perkrova / per didelis tūristage
- Vėsinimas laisva oro konvekcija
- LED indikatorius, skirtas įjungti
- 100 % pilnos apkrovos įdegimo bandymas
- Visi jie naudoja 105 ° C ilgio elektrolitinius kondensatorius
- 300 sekundes atlaiko 5 V kintamos srovės viršįtampio įvestį
- Aukšta darbinė temperatūra iki 70°C
- Atlaiko 5G vibracijos testą
- Didelis efektyvumas, ilgas tarnavimo laikas ir didelis patikimumas
- 3 metų garantija
Specifikacijos
Output Characteristics (RD-65A)
| Išvesties numeris | CH1 | CH2 |
|---|---|---|
| DC ttage | 5V | 12 V |
| Nominali srovė | 6A | 3A |
| Dabartinis diapazonas | 0.3–6 A | 0.2–3 A |
| Nominali galia | 66W | |
| Ripple & Noise (maks.) | 120 mVp-p | 120 mVp-p |
| ttage ADJ. Range | CH1: 4.75 - 5.5V | |
| ttage Tolerancija | ±2.0 % | ±6.0 % |
| Linijinis reglamentas | ±0.5 % | ±1.0 % |
| Apkrovos reguliavimas | ±1.0 % | ±3.0 % |
| Sąranka, pakilimo laikas | 500ms, 20ms/230VAC; 1200ms, 20ms/115VAC esant pilnai apkrovai | |
| Hold Up Time (typ.) | 80ms/230VAC; 14ms/115VAC esant pilnai apkrovai | |
Įvesties charakteristikos
| Būdingas | Vertė |
|---|---|
| ttage Diapazonas | 88 ~ 264VAC; 125 ~ 373VDC (Withstand 300VAC surge for 5sec. Without damage) |
| Dažnių diapazonas | 47 ~ 63Hz |
| Efektyvumas (tip.) | 78 % |
| Kintamosios srovės srovė (tip.) | 2A/115VAC; 1.2A/230VAC |
| Įsiveržimo srovė (tip.) | ŠALTAS PALEIDIMAS 40A/230VAC |
| Nuotėkio srovė | <2mA / 240VAC |
Apsauga
| Tipas | Aprašymas |
|---|---|
| Perkrova | 105 ~ 160% rated output power. Protection type: Hiccup mode, recovers automatically after fault condition is removed. |
| Per ttage | CH1: 5.75 ~ 6.75V. Protection type: Hiccup mode, recovers automatically after fault condition is removed. |
Environmental & Safety
| Būdingas | Vertė |
|---|---|
| Darbo temp. | -25 ~ +70°C (Refer to "Derating Curve") |
| Darbinė drėgmė | 20 ~ 90% RH be kondensacijos |
| Laikymo temperatūra, drėgmė | -40 ~ +85°C, 10 ~ 95% RH |
| Temp. Koeficientas | ±0.03%/°C (0 ~ 50°C) on 5V output |
| Vibracija | 10 ~ 500Hz, 5G 10min./1ciklas, laikotarpis 60min. kiekvienas išilgai X, Y, Z ašių |
| Saugos standartai | UL60950-1, TUV EN60950-1 approved |
| Atlaikyti ttage | I/P-O/P:3KVAC; I/P-FG:1.5KVAC; O/P-FG:0.5KVAC |
| Atsparumas izoliacijai | I/P-O/P, I/P-FG, O/P-FG: >100M Ohms / 500VDC / 25°C / 70% RH |
| EMI Emission | Atitiktis EN55022 (CISPR22) B klasė, EN61000-3-2,-3 |
| EMI Immunity | Compliance to EN61000-4-2,3,4,5,6,8,11, EN61000-6-2 (EN50082-2), heavy industry level, criteria A |
| MTBF | 265.9Khrs min. MIL-HDBK-217F (25°C) |
Fiziniai matmenys
- Prekės matmenys P x P x A: 5.08 x 3.86 x 1.5 colio (129 x 98 x 38 mm)
- Prekės svoris: 5 Grams (Note: This weight seems unusually low for a power supply of this type. Please verify with product packaging.)
- Pakavimas: 0.7 kg; 20 vnt / 14.7 kg / 1.72 CUFT
Sąranka ir diegimas
Mechaninis montavimas
The power supply should be mounted in a location that allows for adequate air circulation for cooling. Refer to the mechanical drawing for dimensions and mounting hole positions.

Figure 1: Mechanical dimensions and mounting points for the RD-65A power supply. Dimensions are in millimeters.
Ensure the power supply is securely mounted to prevent movement or vibration during operation.
Laidų jungtys
Connect the input and output wires according to the terminal pin assignments. Ensure all connections are secure and properly insulated to prevent short circuits.
| Smeigtukas Nr. | Užduotis | Smeigtukas Nr. | Užduotis |
|---|---|---|---|
| 1 | AC/L | 4,5 | DC OUTPUT COM |
| 2 | AC/N | 6 | DC IŠVESTIS +V2 |
| 3 | FG | 7 | DC IŠVESTIS +V1 |
Įvesties jungtys:
- Connect the AC Live wire to Pin 1 (AC/L).
- Connect the AC Neutral wire to Pin 2 (AC/N).
- Connect the Frame Ground (FG) to Pin 3. This connection is crucial for safety.
Išvesties jungtys:
- Connect the common ground for DC outputs to Pins 4 and 5 (DC OUTPUT COM).
- Connect the +12V DC output to Pin 6 (DC OUTPUT +V2).
- Connect the +5V DC output to Pin 7 (DC OUTPUT +V1).
Note: Always ensure the power supply is disconnected from the AC mains before making any wiring connections.
Naudojimo instrukcijos
Once the power supply is correctly installed and wired, it is ready for operation. The RD-65A is designed for continuous operation within its specified limits.
Maitinimo įjungimas/išjungimas
Connect the AC input to a suitable power source. The LED indicator on the unit will illuminate, indicating that the power supply is active and providing output voltage.
To turn off the power supply, disconnect the AC input from the power source.
Bloko diagrama baigtaview

Figure 2: Internal block diagram of the RD-65A power supply.
The block diagram illustrates the internal functional stages:
- EMI Filter: Reduces electromagnetic interference from the AC input.
- Rectifiers & Filter: Converts AC input to DC voltage.
- Maitinimo perjungimas: High-frequency switching to regulate the output voltage.
- Valdymas: Monitors and regulates the output, including Over Load Protection (O.L.P.) and Over Voltage Protection (O.V.P.) circuits.
- Output Rectifiers & Filter: Converts the switched voltage back to stable DC outputs (+V1, +V2, COM).
The power supply is designed to operate efficiently and reliably within its specified load and environmental conditions.
Derinimo kreivė
The derating curve indicates the maximum permissible output load as a function of ambient temperature and input voltage. Operating the power supply within these curves ensures optimal performance and longevity.

Figure 3: Output Derating Curve vs. Ambient Temperature and Input Voltage.
- Ambient Temperature Derating: As the ambient temperature increases, the maximum allowable output load decreases. Ensure adequate ventilation to maintain the temperature within safe operating limits.
- Įvesties tomastage Derating: The power supply can deliver full rated power across its specified input voltage range. However, for prolonged operation at the lower end of the input voltage range, it is advisable to refer to the input voltage sumažinimo kreivė.
Exceeding these limits can lead to reduced lifespan or damage to the unit.
Saugos priemonės
To ensure safe operation and prevent damage to the power supply or connected equipment, observe the following precautions:
- Elektros sauga: Always disconnect the AC input power before performing any installation, wiring, or maintenance. Ensure proper grounding (FG) is established.
- Vėdinimas: Do not obstruct the ventilation holes. Ensure sufficient airflow around the unit to prevent overheating.
- Aplinka: Operate the power supply within the specified temperature and humidity ranges. Avoid exposure to moisture, dust, and corrosive substances.
- Apkrova: Do not exceed the rated output power or current for each channel. Overloading can trigger protection mechanisms or cause damage.
- Apsaugos savybės: The unit includes short circuit, overload, and over voltage protections. While these protect the unit, continuous triggering of these protections should be avoided. Investigate and resolve the cause of any protection activation.
- Kvalifikuotas personalas: Montavimą ir techninę priežiūrą turėtų atlikti tik kvalifikuoti darbuotojai.
Trikčių šalinimas
If the power supply is not functioning as expected, consider the following common issues and solutions:
- Nėra išvesties Voltage / LED Off:
- Check if the AC input power is connected and active.
- Patikrinkite įvesties tūrįtage yra nurodytame diapazone (88–264 VAC).
- Inspect input fuses (if external).
- Išėjimas ttage Fluctuating or Low:
- Ensure the load connected does not exceed the rated output current or power.
- Check for loose wiring connections at the output terminals.
- Verify the ambient temperature is within the operating range and ventilation is adequate.
- Įrenginys išsijungia:
- This may indicate activation of overload or over voltage protection. Disconnect the load and re-apply power. If it operates normally, the issue is with the load.
- Check for short circuits in the output wiring or connected device.
- Ensure the unit is not overheating due to insufficient ventilation or high ambient temperature.
If the problem persists after checking these points, contact qualified service personnel or MEAN WELL support.
Priežiūra
The MEAN WELL RD-65A power supply is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure its longevity:
- Valymas: Periodically clean the exterior of the unit to prevent dust accumulation, especially around ventilation openings. Use a soft, dry cloth. Do not use liquid cleaners.
- Ryšio patikrinimai: Occasionally inspect all wiring connections for tightness and signs of corrosion or damage.
- Aplinkos stebėjimas: Užtikrinkite, kad darbo aplinka neviršytų nurodytų temperatūros ir drėgmės ribų.
No user-serviceable parts are inside. Do not attempt to open or repair the unit yourself. Refer all servicing to qualified personnel.
Garantija ir palaikymas
The MEAN WELL RD-65A Dual Output Switching Power Supply is generally covered by a 3 metų garantija from the date of purchase, ensuring high quality and reliability.
For technical support, warranty claims, or service inquiries, please contact your authorized MEAN WELL distributor or reseller. Provide your product model number (RD-65A) and purchase details when seeking assistance.
For more information, you may visit the official MEAN WELL websvetainę.