Low Frequency Pure Sine Wave Hybrid Solar Inverter Off-Grid Inverter /Charger

NVFM Series

1KW-12KW

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Built-in MPPT Solar Controller

(Optional )

High Efficiency above 90%

Multi-Protection

WiFi Monitor

Pure Sine Wave

Battery Voltage 12/24/48/96VDC

NVFM Series are with a robust low-frequency design and high-quality transformer, this advanced inverter/charger delivers pure sine wave output while seamlessly integrating solar charging and battery backup for industrial-grade power reliability. It adopts high-precision DSP control chip, precise detection circuit, advanced control technology, modular design is more convenient for installation and maintenance. Intelligent temperature-regulating fan, efficient heat dissipation, extending system life. The output is stable, clean and pure sine wave output. There are four working modes to choose:mains priority mode, battery priority mode, energy saving mode, and unattended mode. Has short circuit protection, over and under voltage protection, overload protection, overheat / short circuit automatic restart (automatic restart three times), wide frequency and wide voltage input.

product details

Product Features

Super professional remote monitoring on APP and PC: convenient daily usage, smart large-scale aftersales without time and location limitation.

Built-in MPPT solar charge controller

Wide PV input voltage range (60V to 450V), minimum connect 2pcs PV panel, save installation cost.

Max 8 pcs in parallel, extend loading capacity to 49.6KW

Smart tuya communication bar(Easy management for users)

Built-in anti-dust kit for harsh environment, avoid short circuit.

High efficiency (max 97.5%), no-load loss less than 30W.

Run without battery

Combining solar system, AC utility, and battery power source to supply continuous power(10MS transfer time)

Dual back up load port(EPS port& smart port)

Support power the load and charge battery at the same time by 1.7 rates of Input Utility power

Overload, short circuit and Deep discharge protection of battery

Intelligent fan speed regulation, reduce noise and power consumption.

5 year warranty.

Applications of Inverters

1. Solar Power Generation: Converts the direct current (DC) produced by solar panels into alternating current (AC) for grid connection or self-use.

2. Electric Vehicles: Converts the DC from the battery into AC to drive the electric motor.

3. Household Appliances: Provides backup power during outages by converting DC from batteries into AC for home use.

4. Industrial Equipment: Supplies AC power to equipment that requires it.

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Application

SYSTEM APPLICATION

This low-frequency pure sine wave inverter/charger combines high-efficiency MPPT solar charging technology with advanced multi-stage battery charging capabilities to provide a comprehensive power solution. Featuring a high-quality toroidal transformer core, the system delivers superior surge capacity (up to 300% peak power) and stable voltage regulation, making it particularly suitable for powering inductive loads such as air conditioners, refrigerators, and power tools.

The integrated MPPT solar charge controller with 99% tracking efficiency maximizes photovoltaic energy harvest from solar arrays, while the smart battery charging algorithm extends battery life for various battery types including lead-acid and lithium-ion. The automatic transfer switch enables seamless transition between solar/grid/generator power sources with less than 10ms switching time, ensuring uninterrupted power supply for critical loads.

With its rugged design and wide operating temperature range (-20℃to 55℃), this system is ideally suited for demanding applications including off-grid solar systems, RV/marine power, solar stations, medical facilities, and industrial backup power. Additional features like programmable inverter mode further enhance its versatility across various energy scenarios.