1. Увод
This manual provides essential information for the safe and efficient operation of your Cotek SP-3000-112 High Frequency Pure Sine Wave Inverter. This device converts 12V DC power from batteries into 120V AC power, suitable for a wide range of electronic appliances. Please read this manual thoroughly before installation and use, and retain it for future reference.
2. Безбедносне информације
Failure to follow these safety instructions may result in electric shock, fire, serious injury, or death. Always exercise caution when working with electrical equipment.
- Прочитајте сва упутства: Before operating the inverter, read all instructions and cautionary markings on the inverter, the batteries, and all appropriate sections of this manual.
- Квалификовано особље: Installation and servicing should be performed by qualified personnel familiar with batteries and inverters.
- вентилација: Ensure adequate ventilation around the inverter. Do not install in a zero-clearance compartment.
- Избегавајте воду: Do not expose the inverter to rain, snow, spray, or bilge water.
- Правилно уземљење: Инвертор мора бити правилно уземљен.
- Безбедност батерије: Work near lead-acid batteries is dangerous. Batteries generate explosive gases during normal operation. Ensure proper ventilation and wear appropriate personal protective equipment.
- Искључите напајање: Always disconnect the battery supply before performing any maintenance or troubleshooting.
- Цоррецт Волtage: Уверите се да је ДЦ улазна волtage matches the inverter's specifications (12VDC for this model).


3. Производ је готовview
3.1 Кључне карактеристике
- Чисти синусни излаз за осетљиву електронику.
- Power ON / OFF remote control capability (Green Terminal).
- Input & output fully isolated for enhanced safety.
- Temperature & load controlled cooling fan for optimal performance.
- User-friendly interface with 3-color LED status indicators.
- Multiple protection features: Reverse Polarity (Fuse), Under Voltagе / Овер Волtage, Output Protection (Short Circuit / Overload / Over Temperature).
- E-13 / UL / CE / FCC approved.
3.2 Inverter Components




4. Подешавање и инсталација
Proper installation is crucial for the safe and efficient operation of your inverter. Refer to local electrical codes and standards.
4.1 Постављање
- Install the inverter in a dry, well-ventilated area, away from direct sunlight, heat sources, and flammable materials.
- Ensure sufficient clearance around the inverter for proper airflow, especially around the cooling fan vents.
- Mount the inverter securely on a stable, non-combustible surface.
- Avoid areas where dust, moisture, or corrosive fumes are present.
4.2 Ожичење
All wiring must comply with applicable electrical codes and be performed by a qualified electrician.
- уземљење: Connect the inverter's chassis ground terminal to a reliable earth ground using appropriate gauge wire.
- ДЦ улазна веза:
- Ensure the battery bank voltagе је 12ВДЦ.
- Use appropriately sized cables for the DC input to minimize voltage drop and ensure safety. Refer to cable sizing charts based on current and distance.
- Connect the positive (+) terminal of the battery bank to the red (+) terminal on the inverter.
- Connect the negative (-) terminal of the battery bank to the black (-) terminal on the inverter.
- Install a DC-rated fuse or circuit breaker between the battery bank and the inverter's positive terminal, as close to the battery as possible.
- Прикључак на излаз наизменичне струје:
- Connect your AC loads to the hardwire AC output terminal block.
- Ensure the total load does not exceed the inverter's continuous power rating (3000W).
- Даљински управљач (опционо): Connect the remote control unit to the RJ45 port or use the green terminal for external ON/OFF control if desired.
5. Упутство за употребу
5.1 Укључивање/искључивање
- За укључивање: Ensure all DC and AC connections are secure. Flip the main power switch on the inverter's rear panel to the 'ON' position. The Power LED indicator should illuminate.
- За искључивање: Disconnect all AC loads from the inverter. Flip the main power switch to the 'OFF' position.
5.2 ЛЕД индикатори
The inverter features 3-color LED status indicators on the control panel (refer to Figure 4) to provide operational feedback:
- Зелена ЛЕД: Indicates normal operation and power output.
- Жути ЛЕД: Indicates a warning condition, such as low battery voltage or high temperature. The inverter may continue to operate but requires attention.
- Црвена ЛЕД: Indicates a fault condition, such as overload, short circuit, or severe over/under voltage. The inverter will shut down to protect itself and connected devices.
5.3 Подешавања ДИП прекидача
The DIP switches on the control panel allow for customization of certain inverter parameters, such as output voltage, frequency, and power saving mode. Refer to the detailed specifications table (Figure 5) or the product datasheet for specific configurations. Always adjust DIP switches when the inverter is powered off.
6. Одржавање
Regular maintenance ensures the longevity and reliable operation of your inverter.
- Чишћење: Periodically clean the exterior of the inverter with a dry cloth. Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners.
- Везе: Regularly check all electrical connections (DC input, AC output, ground) for tightness and corrosion. Loose connections can cause overheating and poor performance.
- Инспекција батерије: Inspect batteries for signs of damage, corrosion, or electrolyte leakage. Ensure battery terminals are clean and tight.
- Окружење: Проверите да ли радно окружење остаје у наведеним опсезима температуре и влажности.
КСНУМКС. Решавање проблема
This section provides solutions to common issues you might encounter. If the problem persists, contact customer support.
| Проблем | Могући узрок | Решење |
|---|---|---|
| Инвертор се не укључује. | No DC input power; Loose battery connections; Blown DC fuse/breaker; Inverter switch OFF. | Проверите запремину батеријеtage; Tighten connections; Replace fuse/reset breaker; Turn inverter switch ON. |
| Нема излаза наизменичне струје. | Overload; Short circuit; Over-temperature shutdown; Low/High DC input voltage. | Reduce AC load; Check for short circuits in wiring/appliances; Allow inverter to cool; Check battery voltage. |
| Yellow LED illuminated. | Ниска запремина батеријеtage warning; High temperature warning. | Recharge batteries; Ensure adequate ventilation, reduce load. |
| Red LED illuminated / Inverter shut down. | Overload; Short circuit; Over-temperature; Under/Over voltage. | Identify and correct the fault (e.g., reduce load, fix short, allow cooling, check battery voltage), then restart the inverter. |
| Cooling fan runs constantly or loudly. | High internal temperature due to heavy load or poor ventilation. | Reduce load; Improve ventilation around the inverter. |
8. Спецификације
The following table outlines the technical specifications for the Cotek SP-3000 Series Pure Sine Wave Inverter, specifically for the SP-3000-112 model.

| Категорија | Параметар | СП-КСНУМКС-КСНУМКС |
|---|---|---|
| Излаз | АЦ Волtage | 100 / 110 / 115 / 120ВАЦ ±5% |
| Називна снага | 3000В | |
| Surge Power (1 Sec.) | 6000В | |
| Максимална излазна снага (1 мин) | 3450В | |
| Оутпут Вавеформ | Pure Sine Wave (THD<3%) | |
| Фреквенција | 50 / 60 Хз ±0.5% | |
| Инпут | ДЦ Волtage | 12ВДЦ |
| Волtagе Распон | 10.5 ~ 16.5ВДЦ | |
| Струја без оптерећења | <3.0А@12ВДЦ | |
| Режим уштеде енергије | <0.4А@12ВДЦ | |
| Ефикасност (макс.) | 90% | |
| Заштита | Input Under - Voltagе Заштита | 10.5 ±0.3 ВДЦ |
| Input Under - Voltagе Аларм | 11.0 ±0.3 ВДЦ | |
| Input Under - Voltage Oporavak | 12.0 ±0.3 ВДЦ | |
| Input Over - Voltagе Заштита | 16.5 ±0.3 ВДЦ | |
| Input Over - Voltage Oporavak | 14.5 ±0.3 ВДЦ | |
| Оутпут Оверлоад | Схутдовн оутпут волtagе, поново покрените да бисте се опоравили | |
| Оутпут Схорт | Схутдовн оутпут волtagе, поново покрените да бисте се опоравили | |
| Животна средина | Радна темп. | -20°Ц ~ +40°Ц |
| Температура складиштења. & Влажност | -30°C ~ +70°C, 10 ~ 95% RH | |
| генерал | Димензије (Ш к В к Д) | 442 к 214 к 102 мм (17.4 к 8.4 к 4.0 инча) |
| Тежина | 8.2 кг (18.1 лбс) | |
| Хлађење | Вентилатор за хлађење контролисан температуром и оптерећењем |

9. Гаранција и подршка
9.1 Информације о гаранцији
The Cotek SP-3000-112 Pure Sine Wave Inverter comes with a 2-годишња гаранција произвођачаОва гаранција покрива недостатке у материјалу и изради при нормалној употреби. Молимо вас да сачувате доказ о куповини за потребе подношења захтева за гаранцију.
9.2 Корисничка подршка
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Cotek customer support through their official website or your point of purchase. Provide your model number (SP-3000-112) and a detailed description of the issue to expedite service.