Is there a quiet inverter (>2500W, 48V to 120V)?
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svetz
Works in theory! Practice? That's something else
Enphase microinverters are silent and fanless... but they're 240 VAC and not 48VDC. Hopefully this post will act as a bump for you. Did you look at the Skybox? Possibly a sealed marine inverter?
Update: Possibly the Outback Power FXR3048A 3000 Watt 48 VDC Sealed Inverter/Charger (UL1741-SA) ? They have a non-fan vented version too, so the only noise of either is probably just the AC hum.
Update: Possibly the Outback Power FXR3048A 3000 Watt 48 VDC Sealed Inverter/Charger (UL1741-SA) ? They have a non-fan vented version too, so the only noise of either is probably just the AC hum.
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schmism
Solar Addict
as a single box. no
Vigo
Solar Addict
If a 2500w device was 95% efficient, 5% of 2500 is 125w of heat generated in the device. I cant think of something that generates 125w of heat that doesnt also create airflow to deal with it.
svetz
Works in theory! Practice? That's something else
If you already have an inverter with a noisy fan, you might be able to replace the existing fan in it with the newer/quiet PC fans. Just depends if the size and power requirements are the same. I've done fan exchanges a couple of times on various gear with mixed success.
Thanks for your reply. I have another post (link below) about replacing the fans but the power consumption of the fans inside my inverter is like ten times the power consumption of the quiet PC fans. User Vigo replied about the heat dissipation (post above) and I happen to have a homemade PC with Intel-i9, 12 generation processor, which I cannot hear it when it is on (using Noctua fans). So, I don't know, if I should replace the fans inside my inverter with Noctua fans, especially the loads on my inverter will never be more than 2000 watts. I could not find the data sheet for the fans inside my inverter.
Replacing FANS inside the EG4 6500EX-48 to make it quiet
Has anyone looked into replacing the two fans (DA09225B12VH DC12V 1.05Amp) inside the EG4 6500EX-48 inverter to make it quiet? It seems, they are using 4-pin PWM type fans (see attached photo) and I could replace them with Noctua quiet fans but Noctua fans draw little power compared to the fans...
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100 Proof
"Please Lord, don't let me do something stupid."
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Here is a quiet one that does 2,500 watts.
www.morningstarcorp.com
SureSine | Pure Sine Wave Inverters - 150 to 2500 Watts
Experience reliable power with SureSine Off Grid Pure Sine Wave Inverters from Morningstar Corp.
www.morningstarcorp.com
DIYrich
Solar Wizard
Liquid cooler ...
In general, inverter's best efficiency is at 1/3 of rated power. If your load is 2000W then a 6000W inverter will operate more efficient and have less fan noise. In addition the size of heat sinks and the number of fet switches is directly proportional to inverter rated power. In other words a 6000W inverter will have a much larger heatsink than a 2500W inverter. Temperature rise will be much lower. The fan may not even activate when ambient temperature is 70F. Inverter positioning is also important. A vertical mounted inverter will have better air flow than a horizontal mounted inverter.
pollenface
Solar Addict
The fan is the noisemaker, change the fan with a near-silent PC type.
As @Cal , mounted vertically with the hot air exhausting from the top will be partially cooled by natural convection currents.
I did this to my 2000w inverter which virtually killed the noise
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As @Cal , mounted vertically with the hot air exhausting from the top will be partially cooled by natural convection currents.
I did this to my 2000w inverter which virtually killed the noise
Inverter wind tunnel
Just for the sake of it I made a little box for an inverter which acts as a wind tunnel with an almost silent computer fan. I noticed the inverter getting especially hot during these past summer days and it's little built-in fan whirring away at 119dba. The inverter is rasied a few mm in the...
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