For sale is a 4000W grid tie string inverter to use with solar panels. It is for 240VAC output voltage. Input voltage range is 195-550VDC. You can search internet for more detailed specification. This is practically the same inverter than Xantrex GT4.0. Only differences is that this Sunpower inverter is intended for positive grounded arrays, while the Xantrex inverters are for negative grounded arrays. In practice it means that with more than 2 strings where fuses are needed for each string, the fuses needs to be on each string negative leads instead of positive leads. Now it has slightly over 20000kWh. Wiring box cover and wall mounting brackets are self fabricated parts made of aluminum sheet metal. Inverter has Xantrex recall kit installed to address the GT-series inverters capacitor failures. The whole time 3+ years I have used this I have had no issues. The item “Sunpower SPR-4000x grid tie solar inverter” is in sale since Sunday, March 20, 2016. This item is in the category “Home & Garden\Home Improvement\Electrical & Solar\Alternative & Solar Energy\Chargers & Inverters”. The seller is “mara12345678″ and is located in Irving, Texas. This item can be shipped to United States.

• Brand: Sunpower
• Model: SPR-4000x