AC-coupled (retrofit onto existing solar)

Sunpura S6000 AC Pro 6.0 kWh

The high-power AC-coupled model. Adds 6 kWh of storage and 3,500 W of backup to an existing solar system. Expandable to 24 kWh, up to 144 kWh with six units in parallel.

6.0 kWh
rated energy
3,500 W
rated power
10,000
cycles (70% SOH)
24 kWh
expandable
6.0 kWh AC-coupled (retrofit onto existing solar) Product photography follows.

What it is

The Sunpura S6000 AC Pro is the high-power, AC-coupled member of the range. It shares the 6 kWh battery of the S6000 but uses a heavier 3,500 W Power Box and couples onto an existing solar system over AC (with dual-CT metering) rather than taking panels directly. It is built for larger retrofits where more backup power matters.

High-power retrofit for bigger homes

If a home already runs solar but needs serious storage and stronger backup, the S6000 AC Pro adds 6 kWh (expandable to 24 kWh, and up to 144 kWh with six units in parallel) with 3,500 W of continuous output and a 4,950 VA surge. The 144 kWh figure is six units, each already stacked to its full 24 kWh, joined by a parallel connection box, which is a separate product. Six base units give 36 kWh. Parallel operation is drawn across all three phases and most South African homes are single-phase, so ask us to size a multi-unit system before you plan around a headline number. Dual-band Wi-Fi with RS485 and LAN gives installers robust monitoring.

Why AC-coupled

  • Retrofit-friendly: adds to an existing solar/inverter system without re-cabling the array.
  • More power: 3,500 W rated, 4,950 VA peak, for larger essential loads.
  • Scales high: to 24 kWh in one system, up to 144 kWh with six stacked units and a parallel box.
  • Professional connectivity: dual-band Wi-Fi, Bluetooth, RS485 and LAN.

A note on cycle testing: the S6000 AC Pro cycle figure is measured at 0.5C, while the 48 V S2400 and S4800 are measured at 1.0C, so the numbers are not directly comparable.

Certification

European and international certification (CE/EMC, RED, LVD, CB, RoHS, REACH, UN38.3, IP65, WEEE, VDE 4105, EN 50549 and more). We publish this as CE and CB certification, and we claim no South African approval.

Full specifications

S6000 AC Pro technical parameters

AC coupling
Max AC input (AC coupled)3,500 W
MeteringDual-CT (reads third-party inverter)
Works withan existing rooftop PV / inverter system
Battery
ChemistryLiFePO4 (LFP), 314 Ah cells
Nominal voltage19.2 V
Rated energy6,000 Wh (6.0 kWh)
Max charge / discharge current200 A
Rated power (2 or more packs)3,500 W
Cycle lifeat least 10,000 cycles at 70% SOH (0.5C)
Depth of discharge90%
AC output (backup / off-grid)
Max output power3,500 W
Max output current15.3 A
Peak output (5 s)4,950 VA
Nominal output220 / 230 VAC, 50 Hz
General
Protective classClass I
Operating temperature−20 °C to 55 °C
Ingress protectionIP65
Net weightPower Box 25 kg + Battery Box 60 kg
Dimensions (W x H x D)500 x 380 x 561 mm
CommunicationWi-Fi (5 GHz and 2.4 GHz) / Bluetooth / RS485 / LAN
Warranty10 years

Certification

European and international certification, published as CE and CB. No South African approval is claimed.

CE / EMCREDLVDCBRoHSREACHUN38.3IP65WEEEVDE 4105EN 50549

Interested in the S6000 AC Pro?

Request a quote, or partner with Sunpura as a distributor or installer.