4000 Watt 48 Volt Off Grid Solar Inverter
4000 watt (6000VA) off grid inverter for sales, with battery charging, pure sine wave output, LCD digital display show voltage, load and battery info in real time. 48V DC input to 120V/ 240V AC output, strong loading capacity and peak power more than 3 times.
Best and cheap 48 volt solar off grid inverter/ inverter charger on inverter.com online store, which is 4000W (6000VA) power rating, converting 48V DC to 110V/ 120V/ 220V/ 230V/ 240V AC. This low frequency inverter charger is perfect for most off grid systems.
Pure sine wave output for compatibility with loads of different types
Visualization of operation status of the equipment through a digital LCD
Automatically transfer between battery and line modes
Pure sine wave output (THD < 3%) for wide range of applications and harsh environment
A wide range of input voltage, accurate output and all automatic voltage stabilization
Overall protection functions (battery overvoltage protection, battery under voltage protection, overload protection, short circuit protection and over temperature protection)
Rated power load
Input DC input
DC 42-60V (48V)
110V/ 120V/ 220V/ 230V/ 240V AC (Same as the output voltage)
50Hz/ 60Hz±5% (Auto)
110V/ 120V/ 220V/ 230V/ 240V AC (optional)
50Hz/ 60Hz±5% (Auto)
Pure sine wave
≥85% (full load)
Wave form distortion factor
Output power load factor
Protection Overload capacity
105-120% at 30s; 120-150% at 10s; >150% at 5s
DC 10.5 (12V)/ DC 21 (24V)/ DC 42 (48V)/ DC 84 (96V), Alarm and shut down
85℃, Auto shut down after alarm
DC 17V (12V)/ DC 33V (24V)/ DC 66V (48V)/ DC 128V (96V), Auto shut down after alarm
Grid charge Charge current
0-30A adjust (It's the current range for charging the battery under (AC) commercial power preferred mode)
Time & date setting, Contrast, Brightness, Sound, Voltage switch, Grid charger, Clear records, Reset
Grid fist/ battery first/ standby mode
Record (fault record), system information
Others Switch time
10%~90% (No condensation)
<3000 (>1000m, derating)
Inverter for Solar Panel System
Tips: What are the requirements of electrolytic capacitors for PV solar inverter?
As an important part of photovoltaic power generation, the main function of solar inverters is to convert DC from photovoltaic modules into AC. So, what are the requirements of electrolytic capacitors for photovoltaic solar inverters?
1. High voltage
General high-power photovoltaic solar inverters incorporate the converted AC directly into the high-voltage power grid, but from the safety point of view, the output voltage of photovoltaic battery pack is generally not higher than 900V, two 450V electrolytic capacitors can be selected in series, but in order to improve security, two 500V electrolytic capacitors can be selected in series. Therefore, high voltage capacitors are needed to reduce the series connection of capacitors and improve reliability.
2. High ripple resistance
In general, the current flowing through capacitors of photovoltaic inverters is 0.44 times of the effective value of the output current of the inverters. For example, the output voltage of photovoltaic inverters is 250V, the output current corresponding to 1 kW output power is about 2.54A, and the current flowing through DC bus capacitors is 1.12A. DC bus capacitors of
100 kW PV solar inverters need to flow through 112A RMS current. The rated current of the selected capacitors should not be lower than this value. If the rated current of an electrolytic capacitor can not meet the requirements, it is necessary to select multiple electrolytic capacitors in parallel to obtain the required current value. Therefore, a single electrolytic capacitor with high ripple resistance is required to reduce the number of parallel electrolytic capacitors and improve the overall reliability.