SPF ES off-grid inverter 48 V, 3.5–6 kW
Country: China · Model: SPF ES
The transformerless SPF ES off-grid inverter delivers 3500–6000 VA of 230 V pure sine wave and works with a 48 V battery. It suits off-grid houses, workshops and backup power, where energy comes from the sun, the grid or a generator.
- Power
- 3500–6000 VA
- Battery
- 48 V, lithium and lead-acid
- Peak power
- 2× rated
- Solar controller
- MPPT 120–450 V, up to 8000 W PV (6000 ES Plus)
Technical specifications
| Power | 3500–6000 VA |
|---|---|
| Battery | 48 V, lithium and lead-acid |
| Peak power | 2× rated |
| Solar controller | MPPT 120–450 V, up to 8000 W PV (6000 ES Plus) |
| Output | 230 V ±5 %, 50/60 Hz, pure sine wave |
| Efficiency | 93 % |
| Parallel | up to 6–9 units |
| Customs codes (for reference) | |
| HS code | 8504.40 |
| UKTZED code (Ukraine) | 8504408400 (≤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 built-in MPPT controller works in the range of 120–450 V, and the 6000 ES Plus version accepts up to 8000 W of panels. The 48 V battery input suits lithium and lead-acid batteries, so the inverter can be installed with an existing lead-acid bank and later switched to LiFePO4 without replacing it. It briefly delivers 2× the rated power, enough to start a refrigerator or a small pump. The output voltage stays within 230 V ±5 % at 50/60 Hz, so boilers and sensitive electronics run as if from the grid. The built-in transfer switch feeds grid or generator power to the load and at the same time charges the battery from them. The efficiency is 93 %, and up to 6–9 units are connected in parallel depending on the version.
How to choose
The model is chosen by continuous power, from 3500 VA for a small house to 6000 VA for a cottage with pumps and kitchen appliances. If there are more panels than the base version accepts, take the 6000 ES Plus with a PV input of up to 8000 W. Heavy starting loads call for the transformer-based SPF T, which holds 3× the rating, and a three-phase house with a grid and a generator is better served by the hybrid WIT of 4–25 kW.
Request a price and lead time
SPF ES off-grid inverter 48 V, 3.5–6 kW. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How much panel power can be connected to the SPF 6000 ES Plus?
The 6000 ES Plus version accepts up to 8000 W of solar panels at an MPPT operating voltage of 120–450 V.
Does the SPF ES work with lead-acid batteries?
Yes, the 48 V battery input is designed for both lithium and lead-acid batteries.
Can the SPF ES battery be charged from a generator?
Yes, the inverter has a grid or generator input with a built-in transfer switch and charges the battery from it when there is not enough sun.
How many SPF ES inverters can be connected in parallel?
Depending on the version, up to 6–9 units work in parallel, which makes it possible to increase the system power.
What is the overload capacity of the SPF ES?
The peak power is 2× rated, so the 6000 VA model briefly delivers twice its rating.
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Need a price, lead time or replacement?
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