Can I connect a step up/down converter directly to the output of a hybrid solar inverter?

[javy105]

Hello. I bought this step up/down converter and I wanted to know if I could connect it’s input to the output of a Growatt hybrid inverter. I want to use the converter as it is, just the front receptacles. It’s going to be off grid and not wired to a residential panel. I ask since the input of the converter is a standard US 110v plug and not a EU 220v plug. I know the is an adapter to convert it to a 220v plug but the Growatt output only accepts bare wires. Can I cut the plug off and use it’s wires? If so, which colors go into the L-N outputs of the Growatt’s? I know both are hot wires coming out of the Growatt since it is a 240v inverter.

 

[Bobert]

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Hello. I bought this step up/down converter and I wanted to know if I could connect it’s input to the output of a Growatt hybrid inverter. I want to use the converter as it is, just the front receptacles. It’s going to be off grid and not wired to a residential panel. I ask since the input of the converter is a standard US 110v plug and not a EU 220v plug. I know the is an adapter to convert it to a 220v plug but the Growatt output only accepts bare wires. Can I cut the plug off and use it’s wires? If so, which colors go into the L-N outputs of the Growatt’s? I know both are hot wires coming out of the Growatt since it is a 240v inverter.

I looked up this device and I can’t see anywhere that it takes 220v. If that is the case you would need to use a transformer to step it down to 120 volt. Usually the European adaptors have a small transformer in them that takes 220 and transforms it to 110 v. Don’t try connecting it directly to 220 volt unless you can verify it is designed for a 220v input and you know what you are doing.

 

[javy105]

Hello. Bobert and thank you for replying. It does both things. That is why is a step up and down transformer. It has a switch on the back to switch from 120v to 240v in and from 240v to 120v. Now for the question I made I found a video on you tube that shows how it can be done. It has to be modified a little but it will work. I'm waiting on it to arrive on the mail to fully inspect it inside and try it. Will let you know what happened.

 

[Bobert]

Hello. Bobert and thank you for replying. It does both things. That is why is a step up and down transformer. It has a switch on the back to switch from 120v to 220v in. Now for the question I made I found a video on you tube that shows how it can be done. It has to be modified a little but it will work. I'm waiting on it to arrive on the mail to fully inspect it inside and try it. Will let you know what happened.

Thanks glad you are doing your research.

 

[javy105]

I'm researching everywhere I can. I don't want to electrocute or burn my equipment or my house! I will post back my findings. Maybe someone else has the same questions as me.

 

[javy105]

Hello to all! I finally put this step up/down transformer to work and no modifications had to be done to it. I bought a female receptacle and a 14/3 wire and connected the male 110v plug to the female receptacle. The other end of the wire connected to the out of the inverter, black to L and white to N making sure it matched the wires inside the female receptacle and inside the transformer. Also making sure that the switch on the back of the transformer was on 220v. It has been working perfectly since installed.

 

[javy105]

These are the materials used. No cutting or splicing the one that came on the transformer.

 

[HJEngland]

I'm looking to do the same thing- I have a Sungold Solar 3000 charger inverter 24v and a 24v solar system, but I need to step it down to 12v for my RV. The Sungold also only accepts bare wires but I like your solution and will keep it as a reference for setting up mine too.

 

[javy105]

I'm looking to do the same thing- I have a Sungold Solar 3000 charger inverter 24v and a 24v solar system, but I need to step it down to 12v for my RV. The Sungold also only accepts bare wires but I like your solution and will keep it as a reference for setting up mine too.

Keep in mind that what I did is for 240v/120v AC. What you want to do is for lower voltage DC. It can be done, but you need a different type of transformer to do that.

 

[HJEngland]

What type of transformer would I need?

 

[javy105]

I would try this; https://www.amazon.com/Converter-Re...ds=24V+to+12V+Converter&qid=1672234288&sr=8-4