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HS3-5k~12k Three Phase All-in-One Energy Storage System

HS3-5k~12k Three Phase All-in-One Energy Storage System
HS3-5k~12k Three Phase All-in-One Energy Storage System
HS3-5k-12k-T2-all-in-one-energy-storage-solution-product-overview-front
HS3-5k-12k-T2-all-in-one-energy-storage-solution-unbox
HS3-all-in-one-energy-storage-solution-diagram
HS3-(3-12K)-T2 Series Three-phase NTS 2.1 and UNE217001 Certificate-ES
Home » Products » HS3-5k~12k Three Phase All-in-One Energy Storage System

Technical Specifications at a Glance

AC Power 5kW - 12kW
Inverter Type All-in-one hybrid energy storage system
MPP Voltage Range 180 – 900 Volt
MPP Tracker 2
Phases 3
Communication CAN, RS485, Wi-Fi, Ethernet, 4G, DRM, Bluetooth
Pieces per Package 1 per carton, 14 per pallet
Warranty 5 years (extendable up to 15 years)
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What This Model Is Best For

A Three Phase all-in-one energy storage system covering 5-12 kW, the HS3 is SAJ's primary three-phase residential all-in-one ESS with plug-in design, IP65 enclosure, and EV charger readiness. This is the recommended model for three-phase home storage and self-consumption projects.

93%

Round-trip battery efficiency — 5-12 kW three-phase all-in-one for larger homes and C&I

  • 5-12 kW three-phase all-in-one ESS for larger homes and light commercial applications
  • High-voltage battery architecture enables compact cable sizing and lower heat dissipation
  • Parallel operation and generator input ready for extended backup scenarios
Technical & Grid Integration Specs
Battery SystemHigh-voltage LFP stack (150–550 V), 6,000+ cycles at 80% DOD, modular expansion
Grid + EPSVDE-AR-N 4105, G99; three-phase EPS with <20 ms ATS, generator auto-start support
EMS FunctionsPeak shaving, TOU scheduling, zero-injection, and self-consumption optimisation
SafetyType II SPD, AFCI arc detection, thermal management, and cell-level BMS fusing

Use this model when…

  • The site requires a dedicated 5-12 kW three-phase all-in-one for larger homes and C&I
  • The string current matches module specs with zero clipping risks
  • The installer has confirmed the matching local grid-code certifications

Choose another model when…

  • The total string open-circuit voltage exceeds safety limits
  • A different grid phase or system-level battery topology is required
  • Local regulations demand centralized substation inverter architectures

Quote-prep checklist

  • Verify high-voltage battery rack voltage range matches the inverter's 150–550 V input
  • Confirm parallel operation parameters if deploying multiple units
  • Configure generator auto-start signal wiring and cooldown timer settings

Installation, Walkthrough, and Product Videos

Use these videos for installation review, commissioning checks, and client-facing product walkthroughs.

SAJ Latest Smart Home Energy Storage System - HS3 Series

SAJ HS3 communication cable connecting method Sweden

SAJ HS3 All-in-One Smart Energy Storage Installation Tutorials (EN)

SAJ HS3 if didn't connect to master grid signs

Product Video Showcase

Where This Model Fits Best

Three application scenarios for the HS3-5k~12k Three Phase All-in-One Energy Storage System, showing where this 5-12 kW product belongs on the shortlist and where it does not. Review these before quote approval.

HS3 small commercial application
01

Primary Three-Phase Residential All-in-One ESS

The HS3 5-12kW (5-12 kW three-phase) is SAJ's flagship residential all-in-one ESS with plug-in design, IP65 enclosure, and support for up to 7.5 – 15 kW DC DC PV input. This is the recommended model for three-phase homes needing comprehensive storage.

  • Three-phase grid connection confirmed
  • AC output and PV input confirmed within specifications
  • Battery capacity and backup duration confirmed
  • Configuration instructions and user manual reviewed

This is a premium residential ESS. Detailed load and PV data is required for accurate sizing.

HS3 high-consumption smart home application
02

High-Capacity Self-Consumption with Backup

For three-phase homes with high daytime PV generation and evening consumption, the HS3 5-12 kW provides the storage capacity and power class needed for meaningful self-consumption and backup. Confirm consumption pattern and backup circuits.

  • Daily consumption and PV generation profile assessed
  • Battery capacity matched to consumption pattern
  • Backup-load circuits identified and sized
  • Self-consumption strategy defined

Accurate consumption data is critical. Estimate based on utility bills, not assumptions.

HS3 product overview front
03

Installer Standard Three-Phase ESS Deployment

For installers offering a premium three-phase residential ESS, the HS3 5-12 kW provides a complete, single-SKU solution with integrated components and simplified commissioning via the Elekeeper app. Review all documentation before customer quotation.

  • Quick guide and user manual reviewed
  • Configuration instructions reviewed
  • Elekeeper app and monitoring confirmed
  • Battery capacity variant and EV charger option selected

Installer training on HS3 and Elekeeper app is recommended before first deployment.

What Buyers Get Before Quote Approval

From requirement check to document pack and quotation, Sunriver keeps the process clear for distributor and project teams.

Consultation meeting

Talk & Plan

We listen to your needs and create a plan that works for you. Our team will help you understand all your options.

Quote and agreement

Quote & Agree

You get a clear price with no hidden costs. Once you're happy with everything, we sign the agreement and start working.

Production and quality control

Make & Check

We carefully make your order and check everything meets our high standards. You'll know exactly how things are going.

Delivery and support

Ship & Support

Your order ships safely to you on time. We're always here to help if you need anything after delivery.

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FAQ for Technical Review

Product-specific technical questions for buyers, installers, and distributors reviewing the HS3-5k~12k Three Phase All-in-One Energy Storage System before quotation. Each answer includes technical criteria, a pre-quote checklist, and a caveat to avoid common procurement mistakes.

Is the HS3 5-12kW the right three-phase residential all-in-one ESS?

Confirm your AC output target is within 5-12 kW, three-phase grid connection, and that the HS3 plug-in design, IP65 enclosure, and EV charger readiness match your requirements. This is SAJ's flagship three-phase residential ESS — the recommended model for new installations.

What to check

  • Confirm AC output target within 5-12 kW
  • Confirm three-phase grid connection
  • Confirm PV input within 7.5 – 15 kW DC DC
  • Confirm battery capacity and backup duration

If your project is commercial/industrial scale (30kW+), review the CHS2 30-50kW instead.

What PV and battery sizing should I confirm before quoting the HS3 5-12kW?

The HS3 5-12kW supports up to 7.5 – 15 kW DC DC PV input and integrated battery storage. Confirm the total PV array size, daily energy consumption, and backup duration requirements. The configuration instructions provide guidance on system sizing and commissioning via the Elekeeper app.

What to check

  • Confirm total PV input within 7.5 – 15 kW DC DC
  • Confirm daily energy consumption
  • Confirm backup duration and critical-load circuits
  • Review configuration instructions for sizing guidance

Oversizing or undersizing the battery relative to consumption and PV generation reduces system value.

What commissioning steps are required for the HS3 5-12kW?

Commissioning includes: physical installation per the quick guide, Elekeeper app setup and system configuration, grid-code selection, battery charge/discharge settings, and CT/meter configuration. The installer should review the quick guide, user manual, and configuration instructions before starting.

What to check

  • Quick guide reviewed for physical installation
  • Elekeeper app installed and account created
  • Grid code selected per destination country
  • Battery settings configured
  • System tested under load and backup mode

Incomplete commissioning can prevent the system from operating correctly. Follow all steps in sequence.

What monitoring and EV charger options does the HS3 5-12kW support?

The HS3 supports monitoring via the SAJ Elekeeper app and web portal. EV charger integration is available as a future-ready feature — confirm whether an EV charger is included in the current order or planned for later. Wi-Fi or Ethernet connectivity is required at the installation site.

What to check

  • Elekeeper app and portal access confirmed
  • Wi-Fi or Ethernet connectivity at site
  • EV charger included or planned for future
  • Monitoring preferences confirmed with end user

Monitoring and EV charger options affect the system configuration and should be specified during the quote.

What project data speeds up the HS3 5-12kW quote?

Send the destination country, three-phase grid details, AC output target, PV array size, daily energy consumption, backup-load requirements, battery capacity preference, monitoring preference, and whether EV charger integration is planned. Complete data avoids clarification loops.

What to check

  • Destination country and grid code
  • Three-phase grid details and AC output target
  • PV array size and daily consumption
  • Backup-load and battery capacity requirements
  • Monitoring and EV charger preferences

The HS3 5-12kW is a premium residential ESS. Detailed project data ensures the quotation is accurate and complete.

Compare Nearby Models

Review adjacent models before you finalize the shortlist.

HS3-3k~6k Single Phase All-in-One Energy Storage System

HS3-3k~6k Single Phase All-in-One Energy Storage System

AC Power: 3kW - 6kW
Type: All-in-one hybrid energy storage system
MPP Range: 90 – 550 Volt
Phases: 1
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HS2-3k~6k Single Phase All-in-One Energy Storage System

HS2-3k~6k Single Phase All-in-One Energy Storage System

AC Power: 3kW - 6kW
Type: All-in-one hybrid energy storage system
MPP Range: 90 – 500 Volt
Phases: 1
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HS3-3k~4k Three Phase All-in-One Energy Storage System

HS3-3k~4k Three Phase All-in-One Energy Storage System

AC Power: 3kW - 4kW
Type: All-in-one hybrid energy storage system
MPP Range: 180 – 900 Volt
Phases: 2
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CHS2-30k~50k Three Phase All-in-One Energy Storage System

CHS2-30k~50k Three Phase All-in-One Energy Storage System

AC Power: 29.9kW - 50kW
Type: All-in-one hybrid energy storage system
MPP Range: 180 – 850 Volt
Phases: 3
View Details
HS2-5k~10k Three Phase All-in-One Energy Storage System

HS2-5k~10k Three Phase All-in-One Energy Storage System

AC Power: 5kW - 10kW
Type: All-in-one hybrid energy storage system
MPP Range: 180 – 900 Volt
Phases: 3
View Details

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