Description
Symmetrical three-phase power delivery with direct high-voltage coupling.
EcoFlow EF HD-P3-6K0-S1 is a 6 kW three-phase residential hybrid inverter delivering 6,000 VA continuous AC output and 10 kWp solar intake across dual 16 A MPPT channels, engineered to stack cable-free atop EcoFlow PowerOcean high-voltage 5 kWh battery packs.
6,000 VA Symmetrical Three-Phase Output
Delivers balanced 400 V power across L1, L2, and L3, eliminating phase-imbalance penalties on domestic utility meters.
10,000 W Solar PV Input (166% Oversizing)
Dual 16 A MPPT channels capture ample solar energy across East/West residential roof pitches.
Direct 800 V High-Voltage Battery Interface
Direct DC coupling to PowerOcean 5 kWh packs eliminates step-up conversion losses.
Integrated Automatic Backup Transfer (< 20 ms)
Keeps critical domestic three-phase circuits, heat pumps, and routers powered during utility grid blackouts.
More product details
Standard residential installations require balanced three-phase grid export to satisfy European grid codes. The HD-P3-6K0-S1 provides balanced 400 V power while charging storage across a 720–960 V DC window.
- Delivers 8.7 A continuous output current per phase across L1, L2, and L3 (400 V AC).
- Direct 800 V DC battery coupling eliminates inverter step-up losses, maximizing round-trip efficiency.
- Wide MPPT window (200–850 V) optimizes harvest across extreme temperature swings.

EcoFlow PowerOcean
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Automated emergency power with intuitive smartphone management.
Built-in automatic transfer relays isolate the home from utility grid disruptions, energizing critical emergency sub-panels in milliseconds. Senses grid voltage loss and transitions to off-grid backup mode automatically in under 20 ms. Real-time power flows, battery state-of-charge, and customizable self-consumption modes managed via EcoFlow App. IP65 cast-aluminum casing certified for indoor utility rooms or sheltered outdoor walls (-25 to +60 °C).
Holds 45.9 kWh on the battery port
12.5 A charge and discharge at 800 V rated. EF BD-5.1-S1 packs sit on their own pages.
Takes 12 kVA from the utility
Nominal and maximum from the grid are both 12000 VA at 17.4 A on 230/400 V, 3L+N+PE.
Sits outside under 35 dB
IP65, natural convection, about 29.6 kg. 588 x 175 x 380 mm without the trim cover.
Technical data
Optimized three-phase residential energy management engineered for electrified heat pump homes.
10 kWp solar absorption with balanced three-phase output in a compact hybrid unit.
Designed for standard European three-phase households, the HD-P3-6K0-S1 delivers 6,000 VA continuous AC output across 3 balanced phases. It accepts up to 10,000 Wp of solar generation across dual 16 A MPPT channels, charging PowerOcean high-voltage battery stacks (up to 45.9 kWh across 3 towers) with automated emergency backup.
- Continuous 3-Phase Power
- 6,000 VA
- Solar DC Intake
- 10,000 Wp
- High-Voltage Bus
- 720–960 V
- High String Current
- 16 A / MPPT
Power & Grid Output
- Nominal apparent power from utility grid (VA)
- 12 kVA
- Maximum apparent power from utility grid (VA)
- 12 kVA
- Maximum AC current from utility grid (A)
- 17.4
- Nominal apparent power output (VA)
- 6 kVA
- Maximum apparent power output (VA)
- 6 kVA
- Nominal output voltage (V)
- 230/400, 3L+N+PE
- Maximum AC current output (A)
- 8.7
- Nominal output current (A)
- 8.7
- Nominal apparent power (VA)
- 6 kVA
- Maximum apparent power (VA)
- 7200 for 1 s
- Maximum output current (A)
- 10.4 for 1 s
Solar / PV Input
- Maximum PV power (W)
- 10 kW
- Maximum input voltage (V)
- 1000
- MPPT operating voltage range (V)
- 200 - 850
- Nominal input voltage (V)
- 600
- Maximum power per MPPT (W)
- 5 kW
- Maximum input current per MPPT (A)
- 16
- Maximum short circuit current per MPPT (A)
- 24
- Number of strings per MPPT
- 1
- Number of MPPTs
- 2
- Maximum MPPT efficiency
- 99.9%
Battery / Storage
- MPPT operating voltage range (V)
- 200 - 850
- Maximum charging power (W)
- 6 kW
- Maximum discharging power (W)
- 6 kW
- Maximum continuous charging current (A)
- 12.5
- Maximum continuous discharging current (A)
- 12.5
- Rated voltage (V)
- 800
- Maximum battery capacity (kWh)
- 45.9
Physical & Environmental
- Topology
- Non-isolated
- Protection level
- IP65
- Operating temperature range (C)
- -20 to 50
- Weight (kg)
- Approximately 29.6
- Dimensions W x D x H (mm)
- 588 x 175 x 380 (without trim cover)588 x 175 x 455 (with trim cover)
- Noise emission (dB)
- <35
- Cooling method
- Natural convection
- Ingress protection
- IP65
Efficiency & Communication
- Maximum efficiency
- 97.6%
- Maximum MPPT efficiency
- 99.9%
- Communication
- RS485 (meter), CAN (BMS), Wi-Fi, Bluetooth, WAN, 4G
Project fit
Where this model fits.
Scenarios that show which projects the EcoFlow EF HD-P3-6K0-S1 belongs in, what to verify before quoting, and when another model is the better pick.
Standard Three-Phase European Residences with Heat Pumps (6–10 kWp Solar)

Single-family homes with 3-phase 400 V electrical service running an air-to-water heat pump seeking clean single-tower integration.
6 kW AC power delivers the extra electrical headroom needed for heat pump compressor cycles, while dual 16 A MPPTs optimize East/West roof pitches.
- BoundaryIf the household operates an EV charger alongside the heat pump and solar array size exceeds 10 kWp, step up to the 8 kW, 10 kW, or 12 kW three-phase models. ---
- If the household operates an EV charger alongside the heat pump and solar array size exceeds 10 kWp, step up to the 8 kW, 10 kW, or 12 kW three-phase models. ---
Documents
EcoFlow PowerOcean Three-phase datasheet (EU, EN) EcoFlow PowerOcean Three-Phase Datasheet (EN)Product questions
What size AC circuit breaker is required for the HD-P3-6K0-S1?
3-pole 16 A MCB; 5 × 2.5 mm² to 5 × 4 mm² copper cable. The HD-P3-6K0-S1 delivers a nominal continuous output current of 8.7 A per phase (at 400 V three-phase). A 3-pole 16 A miniature circuit breaker (MCB) is standard on the AC distribution board.
System components
Recommended components
EF BD-5.1-S1 5.1 kWh LFP battery pack
Item number: DLK-ECOFLOW-EFBD51S1
The building-block pack for every PowerOcean stack, single- or three-phase; both HD-P1 and HD-P3 systems scale storage in 5.1 kWh steps of this same pack.
EF BD-B-S1 battery stack base unit
Item number: DLK-ECOFLOW-EFBDBS1
EcoFlow's own stack table lists EF BD-B-S1 x1 in every single-phase configuration (with EF HD-P1), the base unit any HD-P1 battery stack is built on.
EF BD-JC-S1 junction pack
Item number: DLK-ECOFLOW-EFBDJCS1
EcoFlow's own stack table lists EF BD-JC-S1 x1 in every three-phase configuration (with EF HD-P3), the junction pack any HD-P3 battery stack is built on.
Approved pairings
EcoFlow EF BD-5.1-S1Item number DLK-ECOFLOW-EFBD51S1Single-phase: EF BD-5.1-S1 x N plus one EF BD-B-S1 base. Three-phase: the same, plus one EF BD-JC-S1 junction pack, which the single-phase system does not use. Order the JC pack with every three-phase system. Max 45 kWh single-phase, 45.9 kWh three-phase.
EcoFlow EF BD-B-S1Item number DLK-ECOFLOW-EFBDBS1Single-phase: EF BD-5.1-S1 x N plus one EF BD-B-S1 base. Three-phase: the same, plus one EF BD-JC-S1 junction pack, which the single-phase system does not use. Order the JC pack with every three-phase system. Max 45 kWh single-phase, 45.9 kWh three-phase.
EcoFlow EF BD-JC-S1Item number DLK-ECOFLOW-EFBDJCS1Single-phase: EF BD-5.1-S1 x N plus one EF BD-B-S1 base. Three-phase: the same, plus one EF BD-JC-S1 junction pack, which the single-phase system does not use. Order the JC pack with every three-phase system. Max 45 kWh single-phase, 45.9 kWh three-phase.