Skip to content
Deye 20kW Three Phase Hybrid Inverter - SUN-20K-SG05LP3-AU
or $26.94/week with Humm — no deposit required
The Deye LV 20kW Three Phase Hybrid Inverter – SUN-20K-SG05LP3-AU is designed for large residential, commercial and off-grid energy systems requiring high power output, flexible battery integration and reliable three-phase performance.
Supporting 40–60V low-voltage battery systems, this inverter is compatible with lithium-ion and lead-acid batteries and can deliver up to 350A charging and discharging current. It supports grid-connected, off-grid and hybrid operation, making it ideal for larger solar and battery installations.
Applications:
- Large Residential Systems: Ideal for homes with high energy demand, large solar arrays and substantial battery storage requirements.
- Commercial Installations: Suitable for workshops, farms, offices and small to medium commercial sites looking to reduce grid dependence and improve energy management.
- Off-Grid & Hybrid Systems: Supports both grid-connected and off-grid operation, including systems with solar, battery storage and generator backup.
Benefits and Features:
- 20kW Three Phase Output: Provides up to 20kW rated AC input/output power for larger residential and commercial energy systems.
- Low-Voltage Battery Support: Compatible with 40–60V lithium-ion and lead-acid battery systems.
- High Battery Current: Supports up to 350A maximum charging and discharging current.
- High Solar Input Capacity: Supports up to 40kW PV access power and up to 32kW maximum PV input power.
- Dual MPPT Design: Features 2 MPPT trackers with 2 strings per MPPT for flexible solar array design.
- 100% Unbalanced Output: Supports unbalanced three-phase loads for installations with varying demand across phases.
- AC Coupling Support: Suitable for retrofitting battery storage into compatible existing solar systems.
- Parallel Operation: Supports up to 10 units in parallel for larger on-grid and off-grid systems.
- Generator Integration: Supports energy storage from compatible diesel generators for backup and off-grid applications.
- Smart Battery Management: Lithium battery charging strategy automatically adapts through compatible BMS communication.
Technical Specifications:
- Model: SUN-20K-SG05LP3-AU-SM2
- Rated AC Power: 20,000W
- Rated AC Current: 29A
- Battery Voltage Range: 40–60V
- Maximum Charging Current: 350A
- Maximum Discharging Current: 350A
- Battery Type: Lithium-ion or Lead-acid
- Number of Battery Inputs: 2
- Maximum PV Access Power: 40,000W
- Maximum PV Input Power: 32,000W
- Maximum PV Input Voltage: 800V
- MPPT Voltage Range: 160–650V
- Rated PV Input Voltage: 550V
- MPPT Trackers: 2
- Strings per MPPT: 2 + 2
- Maximum PV Operating Current: 36A + 36A
- Maximum PV Short-Circuit Current: 54A + 54A
- Maximum Continuous AC Passthrough: 70A
- Grid Connection: 3L + N + PE
- Maximum Efficiency: 97.6%
- Euro Efficiency: 97.0%
- MPPT Efficiency: >99%
The Deye 20kW Three Phase Hybrid Inverter is a strong option for larger low-voltage solar and battery systems requiring high solar input, substantial battery capacity and dependable three-phase output.
If you're unsure about battery compatibility, solar string sizing or system configuration, our team can help design the right setup for your application.
Battery
We have a 30-day return policy if the item is damaged or is not as described, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@lifepo4oz.com. If your return is accepted, we’ll provide instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at sales@lifepo4oz.com.
If you change your mind, you may be eligible for a return, however the items must be unused and in their original packaging. Once returned to us, we will inspect the goods and, if approved, a 20% restocking fee will apply.
Damages and issues
If you receive any items which appear to be damaged, do not attempt to use them. Please inspect your order upon receipt and contact us immediately if the item is defective, damaged, or if you receive the wrong item, so that we can evaluate the issue and make it right.
Products damaged in transit
If you receive a shipment that has been damaged in transit, a replacement or refund may be provided, subject to the following conditions:
- The return or damage claim must be made within 24 hours of receiving the shipment.
- All shipments must be inspected for damage during the unloading process.
- Clear photos of the damaged packaging and damaged product must be provided as evidence.
- Photos must be taken during the unloading process.
- Photos must clearly show all damage and, where possible, the likely cause of the damage.
- The total approved claim value, including freight costs, will be credited to your account.
Exceptions / non-returnable items
We do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. A 20% restocking fee will apply.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded to your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund.
All orders will be safely packed and shipped within 1 day. All products are shipped via Road Freight only.
All efforts are made to ensure the products safe during transport, however if you receive an item which looks like it may have been damaged during tranport you must take a photo before trying to use the product.
Frequently Asked
A hybrid solar inverter combines a solar inverter and battery inverter in one. It lets you use solar energy in real-time and store excess power for later use.
A solar inverter only converts solar power to usable electricity. A hybrid inverter does that and also manages battery charging and backup power.
Yes, most hybrid inverters can work off-grid, making them perfect for remote locations or backup during outages.
Not always. Hybrid inverters can work without batteries in grid-connected systems but offer full benefits when batteries are added.
Yes! All inverters at LifePO4OZ are compatible with lithium (LiFePO4) battery systems for efficient storage and smart energy use.
