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 in parallel.

6.0 kWh
usable energy
3,500 W
rated power
10,000
cycles (70% SOH)
24 kWh
expandable
6.0 kWh AC-coupled (retrofit onto existing solar)
  • 6.0 kWhusable energy
  • 3,500 Wrated power
  • 10,000cycles (70% SOH)
  • 24 kWhexpandable

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 in parallel) with 3,500 W of continuous output and a 4,950 VA surge. 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 in parallel.
  • 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). South African NRCS and NRS 097-2-1 compliance is being completed as part of Sunpura’s market entry; we make no South African certification or grid feed-in claims until it is in place.

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 (5G & 2.4G) / Bluetooth / RS485 / LAN
Warranty10 years

Certification

European and international certification. South African NRCS / NRS 097-2-1 compliance is being completed as part of Sunpura's market entry.

CE / EMCREDLVDCBRoHSREACHUN38.3IP65WEEEVDE 4105EN 50549

Interested in the S6000 AC Pro?

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