Congsin Low-Frequency Solar Inverter with MPPT & UPS — Reliable Power Anywhere
Overview
The Congsin low-frequency solar inverter integrates a powerful power inverter, MPPT solar charge controller and UPS in one compact unit. Designed for off-grid homes, RVs, trucks and portable power stations, it delivers stable pure sine wave output and reliable DC→AC conversion even in harsh conditions. With over 27 years of expertise, Guangzhou Congsin ensures durability and intelligent performance.
Key Advantages
Robust Low Frequency Design
Low frequency topology gives stronger surge capability and better compatibility with inductive loads like pumps and motors. This means safer starts and long-term reliability for demanding applications.
Built-in MPPT for Faster Solar Charging
Integrated MPPT maximizes energy harvest from solar panels, charging batteries faster and improving system efficiency compared to traditional chargers. Ideal when paired with solar panels for off-grid or hybrid systems.
Seamless UPS Function
Automatic, near-instant switch to battery power protects sensitive devices and keeps critical loads running during grid outages. Perfect for home offices, surveillance, medical equipment and telecoms.
Why Choose Congsin
Guangzhou Congsin Electronic Technology Co., Ltd. has 27+ years' focus on power inverter R&D and manufacturing. Our automated production lines and strict testing ensure quality. Products meet ISO9001 and hold global approvals like CE, EMC, LVD, ETL, FCC, RoHS and E-MARK. We offer OEM/ODM, private labeling and customization to match your project needs.
Typical Applications
Use this unit as a solar inverter for homes, a power inverter for vehicles and RVs, a portable power station backbone, or as a reliable low frequency UPS for field operations and construction sites.
Buy with Confidence
Choose Congsin for a balanced mix of efficiency, endurance and smart features. Contact us to discuss model options, OEM requirements or bulk orders. Experience dependable power solutions that keep you running—anywhere, anytime.
Product Images
Certificate display
ROSH -Certificate Number - TST20220503108-3RC
SGS Certificate
CE Certifcate Nomber - TS120220503108.2FC
Question you may concern
How long does it take to become an authorized distributor?
The process typically takes 2-4 weeks, depending on the discussion and agreement finalization.
Can I order samples before production?
Yes, we offer sample evaluation and prototype testing.
What capacity battery can be used with it?
It is recommended to use a 12V 100Ah-200Ah lead-acid battery or lithium battery; the larger the battery capacity, the longer the UPS power supply time (e.g., a 100Ah battery can support a 100W device to work continuously for about 10 hours).
Does it have protection features?
Yes, it includes overload, overheat, and short-circuit protection.
low frequency solar inverter 12v/24v/48v pure sine wave power inverter2000w 3000w 4000w 5000w 6000w 8000w 10000w 12000w
Pure sine waveform output with built-in transformer and AvR stabilizer(Specially designed to startup inductive
loads such as air conditioner,refrigerators, motors, water pumps, compressorsand laser printers)
Solar hybridinverter built-in 8oA MppT solar controller and ACcharger.
Output voltage(200V/210V/220V/230V/240V)&Output frequency(50Hz/60Hz) can be manuallyregulated at site.
Support Lead acid battery/Gel battery/lithium iron phosphate battery/ternary lithium battery/customized battery.
RS232/RS485 Communicationsportis available.
3 times start-up peak power ofresistingvoltaicimpingement, excellent loading capability.
High conversion efficiency is up to 90%.
Built-in Lithium battery activation function
PVarray Open circuit voltage 230v DC
Support 3 working modes:Mains priority,Battery priority,Pv priority
low frequency solar inverter 12v/24v/48v pure sine wave power inverter2000w 3000w 4000w 5000w 6000w 8000w 10000w 12000w
Pure sine waveform output with built-in transformer and AvR stabilizer(Specially designed to startup inductive
loads such as air conditioner,refrigerators, motors, water pumps, compressorsand laser printers)
Solar hybridinverter built-in 8oA MppT solar controller and ACcharger.
Output voltage(200V/210V/220V/230V/240V)&Output frequency(50Hz/60Hz) can be manuallyregulated at site.
Support Lead acid battery/Gel battery/lithium iron phosphate battery/ternary lithium battery/customized battery.
RS232/RS485 Communicationsportis available.
3 times start-up peak power ofresistingvoltaicimpingement, excellent loading capability.
High conversion efficiency is up to 90%.
Built-in Lithium battery activation function
PVarray Open circuit voltage 230v DC
Support 3 working modes:Mains priority,Battery priority,Pv priority
500W Single Phase Sine Wave Inverter DC12V to AC220V Off-grid Sine Wave Inverter
1000W Modified Sine Wave Inverter, DC 12V to AC 220V Power Inverter with LED Display, 3 USB Ports, 1 Type-C, 1 DC 12V Output & Two Universal Sockets
Our CS1000DDBC 1000W modified sine wave inverter is a professional power conversion device that converts DC 12V from batteries into AC 220V electricity. It is designed with user convenience in mind, featuring an LED display for real-time status monitoring, multiple charging ports (3 USB, 1 Type-C, 1 DC 12V) and two universal sockets to power a wide range of devices simultaneously. Its compact size (250×95×55mm) and lightweight design (NW: 0.84kg) make it easy to carry, ideal for outdoor activities, emergency home use, and on-the-go power needs.
CONGSIN is a trusted OEM factory for power inverters, solar charge controllers, and DC converters. Reliable solutions for global B2B buyers.
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