Description
Maximum three-phase power delivery with direct high-voltage coupling.
EcoFlow EF HD-P3-12K-S1 is the flagship 12 kW three-phase residential hybrid inverter delivering 12,000 VA continuous AC output (17.4 A) and 16 kWp solar intake across dual 16 A MPPT channels, engineered to power luxury residences, workshops, and multi-zone heat pumps atop PowerOcean 5 kWh battery packs.
12,000 W Continuous Three-Phase Power (17.4 A)
Maximum continuous throughput in the PowerOcean G1 range, effortlessly running multiple heat pumps and EV chargers.
16,000 W Solar PV Input (133% Oversizing)
Dual 16 A MPPT channels capture immense daytime energy across large residential and workshop roofs.
Upgraded 15 A Battery Throughput
Delivers faster DC charge and discharge rates to cycle high-voltage storage banks rapidly.
Integrated Automatic Backup Transfer (< 20 ms)
Keeps critical domestic three-phase circuits, heat pumps, and induction cooktops powered during blackouts.
More product details
Built for large electrified residences and domestic workshops, the HD-P3-12K delivers 17.4 A continuous current across L1, L2, and L3, powering multiple high-draw appliances without utility grid purchases.
- Delivers 17.4 A continuous output current per phase across L1, L2, and L3 (400 V AC).
- Upgraded 15 A battery interface delivers faster DC charging and discharging into PowerOcean storage.
- Wide MPPT window (200–850 V) optimizes harvest across extreme temperature swings.
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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 a 15 A port
800 V rated. EF BD-5.1-S1 packs sit on their own pages. Three-phase stacks use the EF BD-JC-S1.
Holds 14400 VA for one second
Nominal is 12000 VA at 17.4 A. From the grid is 16000 VA at 23.1 A.
Sits outside under 35 dB
IP65, about 29.6 kg, 97.6 percent peak, 99.9 percent MPPT.
Technical data
The apex three-phase residential hybrid energy hub engineered for heavy domestic electrification.
16 kWp solar intake with 12 kW continuous output. The maximum PowerOcean G1 throughput.
Maxing out EcoFlow's first-generation three-phase range, the HD-P3-12K-S1 delivers 12,000 W continuous AC power (17.4 A max) across 3 balanced phases. It processes up to 16,000 Wp of solar input across dual 16 A MPPT channels, stacking directly on PowerOcean 5 kWh battery bricks (up to 45.9 kWh across 3 towers) to provide high-power heating, vehicle charging, and whole-home emergency power.
- Continuous 3-Phase Power
- 12,000 VA
- Solar DC Intake
- 16,000 Wp
- High-Rate Battery Port
- 15 A
- High String Current
- 16 A / MPPT
Power & Grid Output
- Nominal apparent power from utility grid (VA)
- 16 kVA
- Maximum apparent power from utility grid (VA)
- 16 kVA
- Maximum AC current from utility grid (A)
- 23.1
- Nominal apparent power output (VA)
- 12 kVA
- Maximum apparent power output (VA)
- 12 kVA
- Nominal output voltage (V)
- 230/400, 3L+N+PE
- Maximum AC current output (A)
- 17.4
- Nominal output current (A)
- 17.4
- Nominal apparent power (VA)
- 12 kVA
- Maximum apparent power (VA)
- 14400 for 1 s
- Maximum output current (A)
- 20.9 for 1 s
Solar / PV Input
- Maximum PV power (W)
- 16 kW
- Maximum input voltage (V)
- 1000
- MPPT operating voltage range (V)
- 200 - 850
- Nominal input voltage (V)
- 600
- Maximum power per MPPT (W)
- 8 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)
- 12 kW
- Maximum discharging power (W)
- 12 kW
- Maximum continuous charging current (A)
- 15
- Maximum continuous discharging current (A)
- 15
- 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-P3-12K-S1 belongs in, what to verify before quoting, and when another model is the better pick.
Large Estates & Multi-Family Homes (14–18 kWp PV) with Heavy Electrification
Luxury single-family properties with extensive daily electricity consumption (multi-zone heat pumps, EV wallboxes, induction cooking).
12 kW continuous AC throughput provides the power needed to run heavy loads simultaneously, while 16 kWp solar intake ensures fast battery replenishment on short winter days.
- BoundaryIf total solar array size is under 14 kWp and continuous household load stays under 10 kW, step down to the HD-P3-10K-S1 to save capital cost. ---
- If total solar array size is under 14 kWp and continuous household load stays under 10 kW, step down to the HD-P3-10K-S1 to save capital cost. ---
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-P3-12K-S1?
3-pole 25 A or 32 A MCB; 5 × 4 mm² to 5 × 6 mm² copper cable. The HD-P3-12K-S1 delivers a nominal continuous output current of 17.4 A per phase (at 400 V three-phase). A 3-pole 25 A or 32 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.