HS3-3k~4k Sistema de almacenamiento de energía trifásico todo en uno
Technical Specifications at a Glance
| AC Power | 3kW - 4kW |
|---|---|
| Inverter Type | All-in-one hybrid energy storage system |
| MPP Voltage Range | 180 – 900 Volt |
| MPP Tracker | 2 |
| Phases | 2 |
| Communication | CAN, RS485, Wi-Fi, Ethernet, 4G, DRM, Bluetooth |
| Pieces per Package | 1 per carton, 14 per pallet |
| Garantía | 5 years (extendable up to 15 years) |
What This Model Is Best For
SAJ HS3 3 – 4 kW Three-Phase All-in-One ESS (T2)
SAJ’s latest all-in-one solution for high-end homes, integrating a hybrid inverter, BMS, EMS, battery, and an optional 11 kW EV charger into a single, ultra-slim (170 mm) IP65 unit.
With 20 A string current, plug-and-play modules, and <20 ms UPS backup, installation is fast and performance is guaranteed.
Design
| Inverter Size (H×W×D) | 450 × 695 × 170 mm |
| Battery Size (per 5 kWh) | 420 × 695 × 170 mm |
| Weight (Inverter / Battery) | 34 kg / 53 kg |
| Cooling | Natural convection < 35 dB |
| Enclosure | Aluminium, IP 65 |
PV & AC Specs
| Rated AC Power | 3 kW / 4 kW |
| Max PV Power | 6 kW / 8 kW DC |
| MPPTs / Strings | 2 × 1 (180–900 V) |
| Max String Current | 20 A (25 A ISC) |
| Grid Output | 3L+N+PE, 220/380 – 240/415 V |
| UPS Backup | 3 kW / 4 kW, < 20 ms transfer |
| Máxima eficiencia | 98.0 % |
Battery Specs
| Chemistry | LiFePO4 (HV 380–500 V) |
| Capacity | 5 – 40 kWh (1 to 8 modules) |
| Max Charge / Discharge | 30 A / 12.4 A |
| Special Features | Module-level DC/DC optimizer, self-heating, fire protection |
Smart Functions
- Self-Use, Time-of-Use, Backup & Passive modes
- Zero-export & dynamic limit via smart meter
- Optional integrated 11 kW Type 2 EV Charger
- 100% three-phase imbalance support
- AFCI & Rapid Shutdown (RSD) ready
- Bluetooth LCD + Elekeeper app; Wi-Fi / Ethernet / 4G cloud & OTA updates
Safety & Compliance
- DC switch, Type II SPDs, RCMU, GFCI, DCI & insulation monitoring
- Active anti-islanding, AC short-circuit & overload protection
- Battery reverse-polarity & over-voltage safeguards
- Meets IEC 62109, EN 50549, AS 4777.2, VDE-AR-N 4105, CEI 0-21
Install & Service
- Modular, cable-free plug-in design for ground or wall mount
- Commission in minutes via Elekeeper app
- Global SAJ service network
Garantía
| Standard Cover | 5 years |
| Extension Options | 10 / 15 years |
Product Resources
Download the latest user manual & datasheet:
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
Video failed to load
SAJ HS3 communication cable connecting method Sweden
Video failed to load
SAJ HS3 All-in-One Smart Energy Storage Installation Tutorials (EN)
Video failed to load
SAJ HS3 if didn't connect to master grid signs
Video failed to load
Where This Model Fits Best
Use these scenarios to decide whether this model belongs on the shortlist before quote approval.
The Modern Eco-Home
Who it’s for: New-build or renovated homes with three-phase power, aiming for maximum energy self-sufficiency, future-proofed for an EV, and a clean, minimalist aesthetic.
Daily energy flow (example):
| Time of Day | Primary Energy Source | Key Activity |
|---|---|---|
| Morning (09:00-12:00) | Solar PV | Power home loads, start charging battery |
| Afternoon (12:00-16:00) | Solar PV (Surplus) | Charge EV with 100% green energy |
| Evening (18:00-22:00) | Battery Storage | Run kitchen, lighting, entertainment |
| Grid Outage | Battery (UPS Mode) | Seamless power to essential circuits |
How it runs (Self-Use + EV Smart Charging):
Priority 1: Power the home with solar. Priority 2: Use surplus solar to charge the EV. Priority 3: Use any remaining solar to charge the battery. Priority 4: Export to grid (if allowed/desired). Evening: Discharge battery to power the home.
Sizing guide (for reference):
- A 10 kWh battery system (2 modules) covers typical evening use and provides a solid backup reserve.
- With an 8 kWp PV array, the system can easily cover daily home use (~15 kWh) and provide a significant charge to an EV (~20-25 kWh) on a sunny day.
Small Business & Office Resilience
Who it’s for: Small businesses, workshops, or home offices with three-phase power that need to reduce daytime energy costs and ensure uninterrupted operation of critical equipment like servers, POS systems, and security.
Critical business loads (example):
| Load | Power (W) | Put on BACK-UP? |
|---|---|---|
| Office Server & Network | 200–350 | Yes |
| Workstations (2-3 staff) | 300–500 | Yes |
| Security System (CCTV) | 50–100 | Yes |
| Workshop Machinery | 1000–3000+ | No (keep on grid) |
How it runs (Backup & Self-Use Mode):
Daytime: PV → Power all loads (office + workshop); surplus → Battery Grid Outage: Battery → Instantly powers backup circuit (office/security) Evening: Battery → Powers any overnight loads (servers, security) Set Reserve: Keep Battery SOC at 40% minimum for business-hour backup
Runtime guide (for reference):
- A 5 kWh battery pack can run a 600 W critical office load for over 7 hours, easily bridging most power cuts.
- A 15 kWh system (3 modules) provides extended multi-day resilience for essential equipment.
What Buyers Get Before Quote Approval
From requirement check to document pack and quotation, Sunriver keeps the process clear for distributor and project teams.
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 & Agree
You get a clear price with no hidden costs. Once you're happy with everything, we sign the agreement and start working.
Make & Check
We carefully make your order and check everything meets our high standards. You'll know exactly how things are going.
Ship & Support
Your order ships safely to you on time. We're always here to help if you need anything after delivery.
FAQ for Technical Review
Use these questions to resolve monitoring, warranty, compatibility, and procurement concerns before approval.
How do I choose between HS2, HS3, and CHS2?
Start with application scope and capacity path. HS2 and HS3 usually fit residential or light-commercial integrated storage paths, while CHS2 is the stronger route when the project is clearly C&I and needs larger cabinet-scale storage.
What capacity and backup details matter before approval?
Confirm target capacity, backup expectation, phase, and whether the project needs integrated EMS or accessory coordination. These details usually decide whether the shortlist stays in residential ESS or moves into a higher-output commercial path.
What site or installation details should I send with the inquiry?
Share the destination market, installation type, expected quantity, and any constraints around footprint, commissioning, or monitoring. That helps Sunriver keep the document pack and quote route aligned with the real deployment condition.
Which file should I review first for an all-in-one ESS project?
Use the datasheet first to confirm power, capacity, configuration, and family fit. Move to the user manual or quick guide when the conversation reaches installation sequence, commissioning, or training handoff.
What helps Sunriver respond faster with pricing and support direction?
Send the target model or family, project type, phase, capacity range, destination country, and expected schedule. If the buyer also needs battery, warranty, or support routing details, include that in the first request so the follow-up stays concise.
Still have questions?
Can't find the answer you're looking for? Our support team is here to help you.
Compare Nearby Models
Review adjacent models before you finalize the shortlist.
Need Pricing, Documents, or Model Matching?
Tell us what you need—from pricing and availability to technical specs or project planning. Our product team will respond within 24 hours.
- Request pricing, lead time, and carton or pallet guidance
- Get engineering support and compatibility checks
- Receive datasheets, manuals, and project-reference material
¡Gracias! Hemos recibido tu consulta.
Our product specialists will reach out within 24 hours. A detailed Thank You page has opened in a new tab.