1. Вовед
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. Информации за безбедност
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.
- Обезбедете правилен поларитет. 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. За фрижидери се препорачува инвертер со 10 пати поголема моќност.
- 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.
- Заземјување: 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. Содржина на пакетот
Проверете дали сите артикли се присутни во пакувањето:
- WZRELB 3000W 48VDC Pure Sine Wave Power Inverter
- Inverter Connection Cables (Red and Black)
- Резервни осигурувачи

Image: WZRELB 3000W Pure Sine Wave Power Inverter with its connection cables and spare fuses.
4. Карактеристики на производот
- Излез на чист синусен бран: Delivers 3000 watts continuous, stable 120V AC power from 48V DC input, with a 6000W peak capacity. Ideal for sensitive electronics.
- Повеќе опции за излез: Features two 120VAC outlets (US type), two 2.4A USB ports, and one heavy-duty 120VAC 25Amp hardwire terminal.
- Сеопфатни безбедносни заштити: Вклучува заштита од преголем волуменtagд, низок волуменtage, overload, short circuit, over heat, reverse polarity (via fuse), and ground leakage.
- Дигитален LED дисплеј: Monitors both DC input voltage и AC излез voltage in real-time for clear power usage tracking.
- Ефикасно ладење: Equipped with an intelligent cooling fan that activates automatically when the internal temperature reaches 50°C (122°F).
- Компактен дизајн: Lightweight and small-sized, suitable for various installations.
5. Дијаграм на производот и компоненти

Слика: напред 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.
Клучни компоненти:
- Лед екран: Shows DC input voltage и AC излез voltage.
- Hardwire Terminal: For direct wiring of high-power AC loads (L, N, G).
- Dual AC Outlets: Standard US 20A sockets for connecting AC appliances.
- Двоен USB приклучок: 2.4A 5V for charging USB-powered devices.
- Прекинувач: Controls the inverter's power.
- LED светлосен индикатор: Обезбедува повратни информации за статусот.
- Вентилатори за ладење: Located at the rear for heat dissipation.
6. Инсталација
Правилната инсталација е клучна за перформансите и безбедноста на инверторот. Консултирајте се со квалификуван електричар доколку не сте сигурни за некои чекори.
6.1 Монтирање
- 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 voltagе капки.
- Важно: Double-check polarity before making final connections. Reverse polarity will damage the inverter.
6.3 AC Output Connection (120V)
- Стандардни продажни места: 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. Операција
7.1 Вклучување на инверторот
- 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 и AC излез voltage.
- 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. Одржување
- 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 Смена на проблеми
| Проблем | Можна причина | Решение |
|---|---|---|
| Нема излез за наизменична струја | 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. |
| Црвено светло трепка | Влез волtage е малку високо. | Монитор влез voltage; Ensure battery charging system is regulated. |
| Низок волуменtage Alarm (43V-45V) | Волумен на батеријаtage е ниско. | Наполнете ги или заменете ги батериите. |
| Inverter shuts down (Low Voltage Shut Down: 41V-43V) | Волумен на батеријаtagд е критично ниско. | Immediately recharge or replace batteries. |
| Overload Shut Down | Поврзаното оптоварување го надминува капацитетот на инверторот. | Reduce load; Manually restart the inverter. |
| Над Voltage Shut Down (61.2V) | DC влез волtagе премногу висока. | Check battery charging system and voltagд регулатор |
| 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. Спецификации
| Параметар | Вредност |
|---|---|
| Модел | U5-300048 |
| Континуирана моќност | 3000 вати |
| Врвна моќност | 6000 вати |
| DC Влез Voltage | 48V DC |
| Опсег на влез DC | 42V - 60V |
| Излез наизменична струја Voltage | 120V AC |
| Излезна фреквенција на наизменична струја | 60 Hz |
| Бранова форма | Чист синусен бран |
| Ефикасност | 85% - 90% |
| Излезни места за наизменична струја | Dual US Type (20A) |
| USB порти | 2 x 2.4A (5V) |
| Hardwire Terminal Capacity | 25 Amp Макс |
| Низок волуменtage Аларм | 43V - 45V |
| Низок волуменtagд Исклучи се | 41V - 43V |
| Над Voltagд Исклучи се | 61.2V |
| Ладење | Intelligent Cooling Fan (activates > 50°C) |
| Димензии на производот | 16.2 x 9.7 x 3.7 инчи |
| Тежина на ставката | 3.2 унци |
| Производител | Yueqing Reliable Electric co.,ltd |
11. Гаранција и поддршка
WZRELB provides a 12-месечна гаранција for this product. For technical assistance, troubleshooting, or warranty claims, please contact customer service.
Контакт за услуги на клиентите:
Е-пошта: info@powerreliable.com
Please have your model number (U5-300048) and purchase information ready when contacting support.