Description
3-pitch solar tracking on an 8 kW three-phase residential inverter.
EcoFlow OCEAN 2 HD-P3-8K0-S2 is an 8 kW three-phase residential hybrid inverter featuring 3 independent 16 A MPPT channels, 200% DC oversizing (16 kWp solar intake), a massive 63 A grid bypass, and true 0 ms online UPS backup, engineered to sustain domestic EV charging and heat pumps.
8,000 VA Continuous Three-Phase Power (12.2 A)
Symmetrical 400 V power delivery across L1, L2, and L3 to satisfy European grid phase-balance mandates.
3 Independent 16 A MPPT Trackers
Maximum string routing flexibility across 3 distinct roof angles, absorbing up to 16,000 W of solar without generation loss.
True 0 ms Seamless Online Three-Phase Backup
Hardware-level instant transfer ensures zero power interruption during grid failure across all 3 phases.
Massive 63 A Grid Bypass per Phase
Passes through full 63 A utility service currents, powering whole-home panels and heat pumps without sub-panel isolation.
More product details
Modern residential properties with complex East-South-West roof pitches suffer heavy mismatch losses if grouped on fewer trackers. The HD-P3-8K0-S2 provides 3 independent 16 A MPPT trackers (Isc 20 A).
- 3 MPPT channels allow dedicated tracking for East, South, and West domestic roof planes with zero cross-string clipping.
- Wide MPPT operating window (200–850 V) optimizes harvest across extreme temperature swings.
- 200% DC oversizing channels surplus daytime generation directly into high-voltage OCEAN 2 storage.
EcoFlow OCEAN 2 (Three-Phase)
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Zero-glitch emergency power with whole-home current pass-through.
Built-in 0 ms solid-state transfer circuitry maintains continuous three-phase power to heat pump controls, server racks, and smart home hubs without voltage sags. True 0 ms seamless transfer prevents memory loss or dropouts on sensitive domestic electronics. Massive 63 A continuous AC bypass contactor per phase eliminates the need to isolate emergency sub-circuits. IP66 cast-aluminum casing certified for clean indoor utility rooms or exposed outdoor walls (-25 to +60 °C).
Keeps unbalanced load at 100 percent
The 63 A path sits in this 8 kW cabinet. Switchover is 0 ms load-side. Unbalanced load is 100 percent.
Cascades two inverters off-grid
On-grid cascade is five. Off-grid cascade is two. Battery bus is 720 to 960 V.
Reaches 97.8 percent peak conversion
Light-load self-consumption is 50 W. Type II SPD sits on DC and AC.
Technical data
Next-generation three-phase residential energy management combining 3-pitch solar harvesting with true 0 ms UPS.
16 kWp solar absorption across 3 MPPTs with 8 kW continuous three-phase output.
Designed for modern high-demand three-phase households, the HD-P3-8K0-S2 processes 16,000 Wp of solar input across 3 MPPT channels. It delivers 8,000 W continuous AC power with 63 A grid pass-through and 0 ms UPS transfer, keeping heat pumps, EV wallboxes, and home electronics operating smoothly without utility grid purchases.
- Continuous 3-Phase Power
- 8,000 VA
- 200% Solar DC Intake
- 16,000 Wp
- Multi-Pitch Routing
- 3 MPPTs
- Heavy Grid Bypass
- 63 A / Phase
Inverter: PV Input
- MPP trackers / strings
- 3 MPPTs, 1 string per MPPT
- Max. input power per MPPT
- 8 kW
- Max. total PV input power
- 16 kW (8 kW model).Family: 6K=12,000 / 8K=16,000 / 10K=20,000 / 12K=24 kW
- Max. input voltage
- 1,000 V
- PV operating voltage range
- 50–1,000 V; MPPT range at rated power 500–850 V
- MPPT start-up voltage
- 120 V (low start-up, begins generating earlier in the day)
- Max. input / short-circuit current per MPPT
- 16 A / 20 A
Inverter: AC Output & Backup
- Rated output power (on-grid)
- 8 kW (8 kW model). Family: 6,000 / 8,000 / 10,000 / 12 kW
- Max. apparent power
- 8.8 kVA (8 kW model).Family: 6,600 / 8,800 / 11,000 / 13.2 kVA
- Nominal / max. output current
- 11.6 A @230 V nominal; max. 14.3 A (8 kW model)
- Grid connection
- Three-phase 3L+N+PEL-L 380/400 V, L-N 220/230 V · 50/60 Hz · TN-S, TN-C, TN-C-S, TT systems
- Max. AC input current (whole-home bypass)
- 63 A, integrated whole-home backup, no external backup box
- Backup (off-grid) output
- 8 kW nominal (8 kW model)THDu ≤2% · 100% unbalanced load support
- Switchover time (grid↔off-grid)
- 0 ms load-side, both directions (per EcoFlow conditions: compliant, stable gridload below rated backup output)
- Power factor / THDi
- 0.8 leading – 0.8 lagging; THDi ≤3% at full load
- Parallel installation
- Up to 5 cascaded inverters on-gridup to 2 cascaded off-grid
Battery Interface & Storage Scaling
- Battery bus
- 800 V rated; 720–960 V range; CAN communication
- Max. battery capacity per inverter
- Up to 12 OCEAN 2 battery modules (up to 60 kWh with one inverter)
- Stack rules
- 5 kWh (BD-5-S2) or 8 kWh (BD-8-S2) modules: max 6 per floor-standing stack / 3 wall-mountedmixed OCEAN 2 + PowerOcean gen-1 stacking capped at 4 per stack · >4 packs per stack requires local-regulation and firmware check
- Module performance
- 5.02 kWh nominal / 4.85 kWh usable per BD-5-S23.4 kW discharge, 2.5 kW charge, 4.08 kW max discharge (≥20 min) per module
- Cross-generation compatibility
- Works with EcoFlow PowerOcean gen-1 batteries and inverters (hybrid stacking supported)
Efficiency & Protection
- Max. efficiency
- 97.8%
- Self-consumption (light load)
- 50 W (measured <300 W total load, lab conditions)
- Integrated protections
- GFCI, AFCI, PV insulation resistance detection, anti-islanding, PV reverse-polarity protection, emergency power off (EPO), AC over-current / short-circuit / over-voltage protection
- Surge protection
- Type II DC + Type II AC SPD integrated
General
- Ingress protection / environment
- IP66; outdoor/indoor; relative humidity 0–100%
- Operating temperature
- -20 °C to +60 °C (derating above 40 °C)storage -30 °C to +60 °C · altitude up to 3,000 m (derating above 2,000 m)
- Communication / UI
- Bluetooth, WiFi, RS485, CANLED + EcoFlow app (Pro app for installers)
- Dimensions / weight (inverter)
- 680 × 203 × 406.5 mm (W×D×H)approx. 36.5 kg · floor stand or wall mounted · anti-theft supported
- Warranty
- 15 years on inverter and battery (capacity-retention terms per EcoFlow warranty policy)
- Packaging (VPE)
- 1 per carton, 8 per pallet
Project fit
Where this model fits.
Scenarios that show which projects the EcoFlow OCEAN 2 HD-P3-8K0-S2 (8 kW three-phase hybrid, 2026 flagship) belongs in, what to verify before quoting, and when another model is the better pick.
High-Consumption Modern Residences (12–16 kWp PV) with Domestic EV Wallbox
Three-phase detached electrified homes running an EV charger alongside an air-to-water heat pump across 3 roof aspects seeking clean single-tower integration.
8 kW continuous output delivers the power needed to charge EVs and run heat pumps, while 3 MPPTs eliminate external optimizers.
- BoundaryIf the property requires higher continuous power output (10–12 kW) to run whole-home off-grid backup during winter blackouts, step up to the 10 kW or 12 kW models. ---
- If the property requires higher continuous power output (10–12 kW) to run whole-home off-grid backup during winter blackouts, step up to the 10 kW or 12 kW models. ---
Documents
EcoFlow OCEAN 2 Three-Phase Hybrid Inverter Datasheet EcoFlow OCEAN 2 Three-Phase Installation Guide (EN/DE)Product questions
What size AC circuit breaker is required for the HD-P3-8K0-S2?
3-pole 16 A or 20 A MCB; 5 × 2.5 mm² to 5 × 4 mm² copper cable. The HD-P3-8K0-S2 delivers a nominal continuous output current of 11.6 A per phase (max output current 12.2 A @ 400 V). A 3-pole 16 A or 20 A miniature circuit breaker (MCB) is standard on the AC distribution board.
System components
Required components
EcoFlow OCEAN 2 LFP Battery 5.02 kWh (BD-5-S2)
Item number: DLK-ECOFLOW-EFBD5S2
The OCEAN 2 is a battery-based system: at least one OCEAN 2 LFP module is required for storage, backup and HEMS operation. Each 5.02 kWh module (4.85 kWh usable) delivers 3.4 kW discharge / 2.5 kW charge and stacks wire-free under the inverter.
EcoFlow OCEAN 2 LFP Battery Base
Item number: DLK-ECOFLOW-OCEAN2-BASE
Every floor-standing battery tower sits on the OCEAN 2 battery base with adjustable levelling feet, spirit level and click-on stacking terminal, the standard mounting for up to 6 modules per stack (wall mounting up to 3 modules uses wall brackets instead).
Recommended components
EcoFlow OCEAN 2 LFP Battery 8 kWh (BD-8-S2)
Item number: DLK-ECOFLOW-EFBD8S2
The larger 8 kWh module reaches higher capacity in fewer stacking steps, same tower format, up to 6 per floor stack and 12 modules per three-phase inverter per EcoFlow's compatibility matrix.
EcoFlow Smart Meter (external grid-point meter)
Item number: DLK-ECOFLOW-SMART-METER
Only needed when not all household loads are wired behind the backup output: the external meter then provides the grid import/export measurement the HEMS needs for self-consumption optimisation and export limiting. In the standard whole-home-backup topology the built-in meter covers this.
Optional components
EcoFlow Battery Junction Box
Item number: DLK-ECOFLOW-EFBDJCS1
For multi-tower installations: cascaded battery stacks connect through a junction box (built-in 1500 V DC / 32 A fuse, battery switch, B-COM port); up to 3 junction boxes can run in parallel. Not needed for a single integrated stack under the inverter. Confirm the OCEAN 2-compatible junction-box variant when ordering.
EcoFlow Battery Stack Bridge
Item number: DLK-ECOFLOW-STACK-BRIDGE
Bracket for dual-tower battery systems: rigidly ties two adjacent towers together (base spacing 94.6-104.5 mm for OCEAN 2 bases). EcoFlow recommends securing both sides of each battery unit, 12 brackets for two 6-module towers, and seismic restraint in seismic zones.
EcoFlow PowerOcean LFP Battery 5.1 kWh (BD-5.1-S1, gen 1)
Item number: DLK-ECOFLOW-EFBD51S1
Cross-generation expansion path: existing PowerOcean gen-1 packs can be mixed with OCEAN 2 packs in one system (max 4 modules per stack in mixed use per the matrix), useful when extending a gen-1 install instead of replacing it.
Approved pairings
EcoFlow OCEAN 2 Battery 5.02 kWh (EF BD-5-S2)Item number DLK-ECOFLOW-EFBD5S2Up to 12 EF BD-5-S2 modules per inverter; 6 per tower floor-mounted, 3 wall-mounted.
EcoFlow OCEAN 2 Battery 8.0 kWh (EF BD-8-S2)Item number DLK-ECOFLOW-EFBD8S2Up to 12 EF BD-5-S2 modules per inverter; 6 per tower floor-mounted, 3 wall-mounted.