SUN-SG LP3 — three-phase hybrid inverters 3–20 kW for 48 V batteries
Country: China · Model: SUN-SG LP3
A hybrid inverter for a three-phase supply and 48 V batteries, rated from 3 to 20 kW. It is installed in houses and commercial sites that need three-phase backup, their own solar plant and a low-voltage battery.
- Series
- SG05LP3 (3–12 and 14–20 kW), SG06LP3 (3–8 kW)
- Battery
- 48 V (40–60 V), lead-acid or lithium-ion
- Charge/discharge current
- up to 350 A
- Isolation
- transformer isolation of the battery
Technical specifications
| Series | SG05LP3 (3–12 and 14–20 kW), SG06LP3 (3–8 kW) |
|---|---|
| Battery | 48 V (40–60 V), lead-acid or lithium-ion |
| Charge/discharge current | up to 350 A |
| Isolation | transformer isolation of the battery |
| Unbalanced output | 100 %, up to 50 % of rated power per phase |
| Parallel operation | up to 10 units |
| Customs codes (for reference) | |
| HS code | 8504.40 |
| UKTZED code (Ukraine) | 8504408400 (≤7.5 kVA); 8504408800 (>7.5 kVA) |
| CN code (EU) | 85044084 |
Specifications are taken from the manufacturer’s technical documentation. Updated . Customs codes are for reference only; the final code is determined at customs declaration for the specific model.
Description
The range consists of two series: the SG05LP3 rated 3–12 and 14–20 kW and the SG06LP3 rated 3–8 kW. The battery input works in the 40–60 V range and accepts both lead-acid and lithium-ion batteries, including LiFePO4. With a charge and discharge current of up to 350 A, the battery cables must be short and thick, and the busbars of the rack must be rated for such current. The battery is separated from the grid by transformer isolation, so grid voltage does not reach the low-voltage circuit. The output allows 100 % unbalance, and up to 50 % of rated power can be delivered to one phase. For larger sites, up to 10 inverters are connected in parallel.
How to choose
The inverter type is determined by the supply and the battery. For a three-phase supply with a 48 V battery, the model is chosen within this range, with power up to 8 kW available in both series and 14–20 kW only in the SG05LP3. If the site is single-phase, look at the SUN-SG LP1, and for a house with no grid at all it is simpler to install the off-grid SUN-OG03LP1 rated 3–8.8 kW with parallel operation of up to 16 units. When the battery is high-voltage, the SUN-SG HP3 series is needed.
Request a price and lead time
SUN-SG LP3 — three-phase hybrid inverters 3–20 kW for 48 V batteries. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Which batteries does the 48 V three-phase hybrid inverter work with?
With lead-acid and lithium-ion batteries rated 48 V in the 40–60 V operating range.
What is the maximum battery charging current in the SUN-SG LP3 series?
Up to 350 A, and the battery cable cross-section and the choice of protection on the battery side depend on it.
Does the inverter withstand unbalanced load across the phases?
Yes, the output is rated for 100 % unbalance, and up to 50 % of rated power can be loaded on one phase.
How many SUN-SG LP3 hybrid inverters can be connected in parallel?
Up to 10 inverters, which takes the system beyond the 20 kW of a single unit.
Why is transformer isolation of the battery needed in a hybrid inverter?
It galvanically separates the 48 V battery circuit from the grid, so no grid potential appears on the battery terminals.
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Need a price, lead time or replacement?
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