Congsin Off-Grid UPS Inverter — Reliable Off-Grid DC→AC Power
Off-Grid UPS Inverter — Reliable Power Anywhere
The Congsin Off Grid UPS inverter is a compact, high-efficiency DC→AC inverter designed to keep critical loads running in off-grid homes, solar systems, RVs, trucks and outdoor work sites. Built by Guangzhou Congsin Electronic Technology Co., Ltd. — founded in early 1998 with over 27 years of focused experience — this UPS inverter blends uninterrupted backup power with smart energy management for real-world use.
Key Features
- Pure sine wave output for safe operation of sensitive electronics and appliances.
- Seamless UPS functionality to protect against outages and voltage spikes.
- High conversion efficiency to maximize battery runtime in off-grid and solar setups.
- Multiple protections: over-voltage, low-voltage, over-temperature and short-circuit safeguards.
- Compact, durable design with easy installation for portable power stations, RVs and remote sites.
Practical Benefits
This Off Grid UPS inverter delivers reliable backup power for lights, communication devices, refrigerators and small tools. It integrates smoothly with solar charge controllers and battery banks to form a complete off-grid power solution. Whether you need dependable UPS protection for a home office, a mobile workstation, or remote field equipment, Congsin’s inverter focuses on real usability: longer runtime, consistent output, and easy monitoring.
Why Choose Congsin
Guangzhou Congsin brings manufacturing strength and engineering credibility to every product. Our automated production lines, multifunctional testing equipment and ISO9001 quality system ensure consistent performance. Many models carry international approvals such as CE, EMC, LVD, ETL, FCC, RoHS and E-MARK, and we hold multiple patents reflecting ongoing R&D. We support OEM/ODM, private labeling and customization to meet specific project needs.
Applications & Compatibility
Ideal for solar inverter arrays, portable power stations, off-grid homes, RVs, patrol vehicles and construction sites. The Congsin Off Grid UPS inverter pairs well with common battery types and solar charge controllers—providing a reliable backbone for your off-grid power system.
Choose Congsin for trusted, efficient off-grid power. Contact us for technical specifications, customization options and global distribution support.
Detailed display
Certificate display
CE Certifcate Nomber - TS120220503108.2FC
SGS Certificate
CE Certificate Number - TST20220680033-1S0
Frequently Asked Questions
Which regional plugs are supported by the universal socket?
The universal socket is compatible with most national plug specifications, such as GB, US, EU, etc. (some require adapters), and can meet the use of devices in different regions.
Can this inverter support both 12V and 24V inputs
Yes, it can work with different voltage systems via selectable input terminals.
How to install the battery terminal wire?
Connect the red terminal wire to the positive pole of the battery and the black terminal wire to the negative pole. Ensure the interface is firm and there is no short circuit when connecting.
Can the 3 AC sockets drive high-power devices at the same time?
Yes, but it is necessary to ensure that the total power of the 3 devices does not exceed 2000W (continuous power). For example, it can drive 1 1000W electric oven + 1 500W microwave + 1 400W printer at the same time (total power 1900W), avoiding total power overload to trigger the protection mechanism.
3000W Full-Power Pure Sine Wave Inverter (Labeled 6000W), DC 12V to AC 220V Power Converter, Suitable for High-Power Devices
This pure sine wave inverter (Model: CS3000PSW-L6000) features "3000W full continuous power output + labeled 6000W peak power." Adopting pure sine wave output technology (waveform distortion rate <2%), its power quality is close to mains power, which can safely drive high-power precision devices such as air conditioners, refrigerators, electric tools, and medical instruments, avoiding equipment malfunctions caused by unstable waveforms. The device supports DC 12V input (compatible with 10.5V-14.8V wide voltage): 3000W continuous power meets long-term stable power supply, and 6000W peak power easily copes with the instantaneous startup impact of devices. Equipped with 4 AC universal sockets (16A) and 2 USB 3.0 fast-charging ports (22.5W/port), it can supply power to 6 devices simultaneously. Built-in six-fold protection (overload, overvoltage, undervoltage, short circuit, overtemperature, and reverse connection), combined with dual intelligent silent cooling fans (noise ≤45dB), balances high-power performance and safety, making it suitable for home emergencies, outdoor engineering, vehicle-mounted power supplies, small commercial and other scenarios.
3000W Full-Power Pure Sine Wave Inverter, DC 12V to AC 220V Power Converter, Suitable for High-Power Precision Devices
This 3000W full-power pure sine wave inverter (Model: CS3000PSW) adopts pure sine wave output technology (waveform distortion rate <2%), and the output power is highly consistent with mains power quality. It can safely drive high-power precision loads such as air conditioners, refrigerators, medical instruments, and small industrial equipment, avoiding equipment malfunctions or shortened service life caused by unstable waveforms. The device supports DC 12V input (compatible with 10.5V-14.8V wide voltage), continuously outputs 3000W full power, and has a peak power of 6000W, easily coping with the instantaneous startup impact of high-power devices; it is equipped with 4 AC universal sockets (max current 16A) + 2 USB 3.0 fast-charging ports (22.5W per port) to meet the simultaneous power supply needs of multiple devices. Built-in six-fold safety protection (overload, overvoltage, undervoltage, short circuit, overtemperature, reverse connection), combined with dual intelligent silent cooling fans (noise ≤45dB), it achieves the triple advantages of "high power + high safety + low noise," suitable for home emergency, outdoor engineering, vehicle-mounted power supply, small industrial scenarios and other fields.
2000W Full-Power Pure Sine Wave Inverter, DC 12V to AC 220V Power Converter, Equipped with 3 AC Universal Sockets
This 2000W full-power pure sine wave inverter (Model: CS2000PSW-3S) adopts pure sine wave output technology (waveform distortion rate <3%), and the output power is close to mains power quality, which can safely drive precision electronic devices such as computers, inverter air conditioners, medical instruments, and audio equipment, avoiding equipment malfunctions or damage caused by unstable waveforms. The device supports DC 12V input (compatible with 10.5V-14.8V wide voltage), continuously outputs 2000W full power, and has a peak power of 4000W, easily meeting the instantaneous startup needs of high-power devices; it is core-equipped with 3 AC universal sockets (max current 16A), which can supply power to multiple home appliances or devices at the same time, and is matched with 2 USB 3.0 fast-charging ports (22.5W per port), balancing high-power supply and digital product charging. Built-in five-fold safety protection (overload, overvoltage, undervoltage, short circuit, and overtemperature), combined with dual silent cooling fans (noise ≤42dB), it achieves both safety and stability, suitable for home emergencies, outdoor operations, vehicle-mounted power supplies, small commercial and other scenarios.
1000W Full-Power Pure Sine Wave Inverter, DC 12V to AC 220V Power Converter, Suitable for Precision Electronic Devices
This 1000W full-power pure sine wave inverter (Model: CS1000PSW) adopts pure sine wave output technology, with a stable waveform close to mains power, which can be safely adapted to precision electronic devices such as computers, projectors, medical instruments, and inverter home appliances to avoid device damage or malfunctions. The device supports DC 12V input (compatible with 10.8V-14.5V wide voltage), continuously outputs 1000W power, and has a peak power of 2000W, meeting the power needs of most household and small commercial devices. Equipped with 2 AC universal sockets, 2 USB 2.0 fast-charging ports (18W per port), built-in five-fold protection (overload, overvoltage, undervoltage, short circuit, overtemperature), and a silent cooling fan, it balances safety and portability, suitable for home emergencies, outdoor camping, vehicle-mounted power supplies, small office and other scenarios.
© 2025 Congsin. All Rights Reserved.




