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diy solar

Looking for 48v psw inverter recommendations under $900

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myersfamilyhome

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Feb 9, 2021
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It's been a out 4 months now since my 3000w wzrelb inverter blew up and think I finally have enough in the budget to replace it. I did use the 3000w so 5000 would be a better fit if possible. Any recommendations would be great. I even noticed a refurbished growatt 6000 that was about $900. The rest of my system is lifepo4 and Victron but if a inverter/charger will put me in a better place for the price then I'll definitely consider it.
 
Available in 24 and 48V. 120/240VAC split phase output.

My neighbor used this to run his 3hp 700' deep well submersible pump (4kW run, 14kW surge). It never broke a sweat:

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$760

Downside? Brutally high idle draw. You pay the price for that mega transformer with giga surge. IIRC, it was 100-110W continuous.

Made by Sigineer. I believe they make AIMS inverters, so it's basically a "generic" AIMS.
 
My system is 48v so that might be a good fit. With my budget being at $900 I'm thinking the Growatt 6kw SPF 6000T DVM. I'm pretty sure Will has given good reviews on the Growatt brand.
 
The Sigineer is a beast. I use a 48V 3000W one to run a 9 ton boat lift. Idle consumption is higher.

It will handle a 3x surge for 20 seconds IIRC, the growatt surge is likely measured in milliseconds and won’t be 3x.

A few years ago I ordered directly from Sigineer and it shipped to me from Phoenix ?.
 
The surge specs are correct.

Found my post from a few years ago:

diysolarforum.com

Sigineer 48v inverter. 3kw, 120 ac

Anyone have experience with or a reasoned opinion on this inverter? https://www.sigineer.com/product/3000-watt-inverter-charger-48-volt-110v-120vac-pure-sine-wave/ The price is decent and I like that it can go up to 9000 watts for 20 seconds supposedly. I need to start/run dual 120v 3/4 HP...
diysolarforum.com diysolarforum.com
 
I kept pushing the old inverter at the 3000w, as mentioned I would definitely feel better about being closer to 5000 if possible. Is aims a decent inverter? I found this one that's 5000w that I might be able to swing, or do you still think these sigineer's would be a better call.

AIMS Power 5000 Watt 48V DC to 120V AC Industrial Pure Sine Power Inverter https://a.co/d/bHHtIs6

www.sigineer.com

3000 Watt Inverter Charger 48 Volt to 110V 120Vac Pure Sine Wave

Inverter charger 3000 watts, 48V to 110V 120V PSW output, 9KW surge of 20s. Low frequency power inverter with 20A battery charger. Efficient and Rugged.
www.sigineer.com www.sigineer.com

3000W Off Grid Stackable PV Inverter 80A MPPT Solar Charger DC 48V to 110V 120V with 40A Utility Charger 50HZ 60HZ

3000W Off Grid High Frequency Stackable Inverter 80A MPPT Solar Charger DC 48V to 110V 120V with 40A Utility Charger 50HZ 60HZ. M3000H-48LV
www.sigineer.com www.sigineer.com
 
You haven’t mentioned your application so it’s hard to advise.

However, if a large surge capability is important you can generally count on a heavy inverter (large transformer) to perform better.

I will note that the 3kW Sigineer weighs around 50 pounds while the 5kW Aims is 30 pounds.

If surge is not important to you the Growatt you mentioned would probably be fine also.
 
Last edited:
And if you’re anywhere around central Ohio :

columbus.craigslist.org

NEW... 4000W 24V Pure Sine Wave Power Inverter - electronics - by...

New Open Box Item!! Item Looks and operates as New!! One small ding on one corner of the unit (see picture) MSRP $939.00 New ...SunGoldPower 4000W 24V Pure Sine Wave Power Inverter, DC 24V Input, AC...
columbus.craigslist.org

Edit: Sorry, I now realize you’re the person looking for 48V. Another thread was looking at 24V.
 
I'm offgrid, it will be used for powering my homestead and well pump. I was using the 3000w for everything but this past winter was intense and pushed it with the use of electric heating. I plan to install the well pump later this summer. Split phase would be nice but I can go either way with the well pump so not a deal breaker. Just need to know that I'm putting myself in a better place than I was with the last inverter.
 
diysolarforum.com

FS: MPP LV6548

Selling the 2nd inverter out of the Meg. Changing things up and wont need this one anymore. This unit was purchased in June of 2021, and its almost exactly one year old. It has never been opened up, or modified. Always been in a climate controlled compartment, with minimum PV connected. Comes...
diysolarforum.com diysolarforum.com
 
sunshine_eggo said:
Available in 24 and 48V. 120/240VAC split phase output.

My neighbor used this to run his 3hp 700' deep well submersible pump (4kW run, 14kW surge). It never broke a sweat:

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Electric Car Parts Company is your one-stop-shop for affordable electric vehicle parts and components including batteries. Shop our selection and order now!
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$760

Downside? Brutally high idle draw. You pay the price for that mega transformer with giga surge. IIRC, it was 100-110W continuous.

Made by Sigineer. I believe they make AIMS inverters, so it's basically a "generic" AIMS.
Click to expand...
Thank you for this reference. I think that I damaged my 3000w SWIPower inverter with lots of inductive starts. My hand drills started smoking like they were on too long of an extention cord, and it's been taking longer to recover from inductive loads. So rather than damage even more of the shop power tools, I'm going to go low frequency. Plus the split phase will give me the option of a small welder in the future.
I looked at the ECPC-6000-48-APC, and it appears identical to the Sungoldpower and the Sigineer units, but the manual referenced from the ECPC site is from APC, who is a fairly large maker of UPS backup systems. So, I'm guessing that is who makes these.
 
Vibe said:
Thank you for this reference. I think that I damaged my 3000w SWIPower inverter with lots of inductive starts. My hand drills started smoking like they were on too long of an extention cord, and it's been taking longer to recover from inductive loads. So rather than damage even more of the shop power tools, I'm going to go low frequency. Plus the split phase will give me the option of a small welder in the future.
I looked at the ECPC-6000-48-APC, and it appears identical to the Sungoldpower and the Sigineer units, but the manual referenced from the ECPC site is from APC, who is a fairly large maker of UPS backup systems. So, I'm guessing that is who makes these.
Click to expand...

"APC" is not the same APC that makes UPS devices.

The inverter I linked is made by Sigineer. I have communicated directly with a Sigineer engineer for confirmation. ECPC connected me with Sigineer when I had some questions they couldn't answer.
 
sunshine_eggo said:
"APC" is not the same APC that makes UPS devices.

The inverter I linked is made by Sigineer. I have communicated directly with a Sigineer engineer for confirmation. ECPC connected me with Sigineer when I had some questions they couldn't answer.
Click to expand...
I just noticed that the AIMS unit also looks exactly the same, switches, LEDs, dip selections, etc. Other than the AIMS is 12-14 pounds lighter, and 2.5x the price. I went to the ECPC site and the drop down selector to order the ECPC-6000-48-APC would not allow a 48vdc selection. So I sent an email inquiry about it.

Already heard back from them. Currently out of stock. More expected in November.
 
Last edited:
It looks like that inverter will run on 24 or 48 volts. Maybe that is why the drop down selector does not give a choice ?
 
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