1. Киришүү
This manual provides essential information for the safe and efficient operation of your WZRELB 3000W Pure Sine Wave Power Inverter. This device converts 48V DC power to 120V AC power, suitable for various applications including RVs, trucks, off-grid solar systems, and emergency household power backup. Please read this manual thoroughly before installation and use.
2. Коопсуздук маалыматы
Failure to follow these safety instructions may result in serious injury or damage to the inverter and connected equipment.
- Do not connect the inverter directly to grid power. This can cause severe damage to the inverter and pose an electrical hazard.
- Туура полярдуулукту камсыз кылыңыз. Reverse connection of positive and negative terminals is strictly forbidden and will damage the unit.
- Avoid overloading the inverter. For inductive loads (e.g., motors, refrigerators), select an inverter with a continuous power rating 3-7 times higher than the appliance's wattage. For refrigerators, a 10 times higher power inverter is recommended.
- Proper power-up and shut-down sequence: Turn off the load first, then turn off the inverter. When powering on, turn on the inverter first, then turn on your loads. This prevents unstable output during the initial seconds due to the soft start function.
- Use standard battery cables. Using non-standard or undersized cables may prevent the inverter from delivering full output.
- Негиздөө: Ensure proper grounding to protect against electrical leakage.
- Температура: The intelligent cooling fan activates when the internal temperature exceeds 50°C (122°F) to prevent overheating.
3. Пакеттин мазмуну
Пакетте бардык буюмдар бар экенин текшериңиз:
- WZRELB 3000W 48VDC Pure Sine Wave Power Inverter
- Inverter Connection Cables (Red and Black)
- Запастык сактагычтар

Image: WZRELB 3000W Pure Sine Wave Power Inverter with its connection cables and spare fuses.
4. Продукциянын өзгөчөлүктөрү
- Таза синус толкунунун чыгышы: Delivers 3000 watts continuous, stable 120V AC power from 48V DC input, with a 6000W peak capacity. Ideal for sensitive electronics.
- Бир нече чыгаруу параметрлери: Features two 120VAC outlets (US type), two 2.4A USB ports, and one heavy-duty 120VAC 25Amp hardwire terminal.
- Комплекстүү коопсуздук чаралары: Includes protection against over voltage, төмөн көлөмtage, overload, short circuit, over heat, reverse polarity (via fuse), and ground leakage.
- Digital LED дисплей: Monitors both DC input voltage жана AC чыгышы томtage in real-time for clear power usage tracking.
- Натыйжалуу муздатуу: Equipped with an intelligent cooling fan that activates automatically when the internal temperature reaches 50°C (122°F).
- Компакт дизайн: Lightweight and small-sized, suitable for various installations.
5. Продукциянын схемасы жана компоненттери

Сүрөт: алдыңкы view of the inverter highlighting the LED Display, Hardwire Terminal, Dual AC Outlets, Dual 2.4A USB Ports, Switch, and LED Light Indicator.

Image: Detailed front panel view showing the DC input volt display, 2.4A 5V USB ports, Power Switch, AC output volt display, AC output sockets (US standard 20A), and AC output wire terminal.
Негизги компоненттер:
- LED дисплей: Shows DC input voltage жана AC чыгышы томtage.
- Hardwire Terminal: For direct wiring of high-power AC loads (L, N, G).
- Dual AC Outlets: Standard US 20A sockets for connecting AC appliances.
- Кош USB порттары: 2.4A 5V for charging USB-powered devices.
- Кубат которгучу: Controls the inverter's power.
- LED жарык көрсөткүчү: Статус боюнча пикир берет.
- Муздатуу желдеткичтери: Located at the rear for heat dissipation.
6. Орнотуу
Proper installation is crucial for the inverter's performance and safety. Consult a qualified electrician if you are unsure about any steps.
6.1 Монтаждоо
- Mount the inverter in a dry, well-ventilated area, away from direct sunlight, heat sources, and flammable materials.
- Ensure adequate clearance around the inverter for proper airflow, especially around the cooling fans.
- Securely fasten the inverter to a stable surface using appropriate mounting hardware.
6.2 DC Input Connection (48V)
- Connect the supplied red cable to the positive (+) terminal of your 48V battery bank and the positive (+) terminal on the inverter.
- Connect the supplied black cable to the negative (-) terminal of your 48V battery bank and the negative (-) terminal on the inverter.
- Ensure all connections are tight and secure to prevent loose contacts and voltage тамчы.
- Маанилүү: Double-check polarity before making final connections. Reverse polarity will damage the inverter.
6.3 AC Output Connection (120V)
- Стандарттык соода түйүндөрү: Plug your 120V AC appliances directly into the dual AC outlets.
- Hardwire Terminal: For permanent or high-power installations, connect your AC wiring to the hardwire terminal (L for Live, N for Neutral, G for Ground). Ensure correct wiring and consult local electrical codes.
7. Операция
7.1 Инверторду ишке киргизүү
- Ensure all DC input connections are secure and correct.
- Ensure no AC loads are connected or turned on.
- Flip the power switch on the inverter to the 'ON' position. The LED display should illuminate, showing DC input voltage жана AC чыгышы томtage.
- Once the inverter is stable (after a few seconds), you can connect and turn on your AC loads one by one.
7.2 Shutting Down the Inverter
- Turn off all connected AC loads.
- Unplug AC appliances from the outlets or disconnect from the hardwire terminal.
- Flip the power switch on the inverter to the 'OFF' position.
8. Техникалык тейлөө
- Regularly inspect all electrical connections for tightness and corrosion.
- Keep the inverter's ventilation openings clear of dust and debris to ensure proper cooling.
- Clean the exterior of the inverter with a dry, soft cloth. Do not use liquids or abrasive cleaners.
- Check the fuses periodically. Spare fuses are provided for replacement if needed.
9. Кыйынчылыктарды
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| AC чыгышы жок | Inverter is off; Low DC input voltage; Overload; Short circuit; Blown fuse. | Turn on inverter; Check battery voltage; Reduce load; Check for short circuits; Replace fuse. |
| Кызыл жарык күйүп турат | Киргизүү тtage is slightly high. | Монитор киргизүү томtage; Ensure battery charging system is regulated. |
| Low Voltage Alarm (43V-45V) | Батарея көлөмүtage аз. | Батареяларды кайра толтуруңуз же алмаштырыңыз. |
| Inverter shuts down (Low Voltage Shut Down: 41V-43V) | Батарея көлөмүtage өтө төмөн. | Immediately recharge or replace batteries. |
| Overload Shut Down | Туташкан жүк инвертордун кубаттуулугунан ашат. | Reduce load; Manually restart the inverter. |
| Voltage Shut Down (61.2V) | DC киргизүү көлөмүtage өтө жогору. | Check battery charging system and voltage жөнгө салуучу. |
| Cooling fan not running | Normal operation if temperature is below 50°C. Fan failure if temperature is high. | No action needed if cool. If hot and fan is off, contact support. |
10. Техникалык шарттар
| Параметр | Нарк |
|---|---|
| Модел | U5-300048 |
| Үзгүлтүксүз күч | 3000 Ватт |
| Чоку күч | 6000 Ватт |
| DC Input Voltage | 48V DC |
| DC киргизүү диапазону | 42В - 60В |
| AC Output Voltage | 120V AC |
| AC чыгаруу жыштыгы | 60Hz |
| Толкун формасы | Таза синус толкуну |
| Натыйжалуулук | 85% - 90% |
| AC розеткалары | Dual US Type (20A) |
| USB порттору | 2 x 2.4A (5V) |
| Hardwire Terminal Capacity | 25 Amp Макс |
| Low Voltage Ойготкуч | 43В - 45В |
| Low Voltage Өчүрүү | 41В - 43В |
| Voltage Өчүрүү | 61.2V |
| Муздатуу | Intelligent Cooling Fan (activates > 50°C) |
| Продукциянын өлчөмдөрү | 16.2 x 9.7 x 3.7 дюйм |
| Элемент Салмагы | 3.2 унция |
| Өндүрүүчү | Yueqing Reliable Electric co.,ltd |
11. Кепилдик жана колдоо
WZRELB provides a 12 айлык кепилдик for this product. For technical assistance, troubleshooting, or warranty claims, please contact customer service.
Кардарларды тейлөө байланышы:
Электрондук почта: info@powerreliable.com
Please have your model number (U5-300048) and purchase information ready when contacting support.




