HS2-3k~6k Einphasiges All-in-One-Energiespeichersystem
Technical Specifications at a Glance
| AC Power | 3kW - 6kW |
|---|---|
| Inverter Type | All-in-one hybrid energy storage system |
| MPP Voltage Range | 90 – 500 Volt |
| MPP Tracker | 2 |
| Phases | 1 |
| Communication | CAN, RS485, Wi-Fi, Ethernet, 4G, DRM, Bluetooth |
| Pieces per Package | 1 per carton, 8 per pallet |
| Warranty | 10 years |
What This Model Is Best For
SAJ HS2 3 – 6 kW All-in-One ESS (S2)
SAJ’s all-in-one residential energy storage system integrates a hybrid inverter, BMS and modular battery into a single IP65 outdoor unit.
With 16 A string current, <10 ms UPS backup and up to 20 kWh of storage, it offers a simple, quiet and powerful solution for maximising home energy independence.
Design
| Inverter Size (H×W×D) | 354 × 626 × 365 mm |
| Battery Size (per 5 kWh) | 261 × 626 × 365 mm |
| Weight (Inverter / Battery) | 25 kg / 52.5 kg |
| Cooling | Natural convection < 35 dB |
| Enclosure | Aluminium, IP 65 |
PV & AC Specs
| Rated AC Power | 3 / 3.6 / 4 / 4.6 / 5 / 6 kW |
| Max PV Power | 4.5 – 9 kW DC |
| MPPTs / Strings | 2 × 1 (90–500 V, 16 A ea.) |
| Grid Output | L+N+PE, 220/230/240 V |
| UPS Backup | 3 – 6 kVA, < 10 ms transfer |
| Maximale Effizienz | 97.6 % |
| THD (grid) | < 3 % |
Battery Specs
| Chemistry | LiFePO4 (HV 85–450 V) |
| Capacity | 5 – 20 kWh (1 to 4 modules) |
| Charge / Discharge | 30 A max (all models) |
| Round-trip η | Up to 96.6 % |
Smart Functions
- Self-Use, Time-of-Use & Backup modes
- Zero-export & dynamic limit via smart meter
- AC retrofit for existing solar systems
- Optional AFCI & Rapid Shutdown (RSD)
- Bluetooth LCD + eSAJ Home 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 design for ground or wall mount
- Internal wiring for clean, fast installation
- Commission in minutes via eSAJ Home app
- Global SAJ service network
Warranty
| Standard Cover | 10 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.
HS2 ALL-IN-ONE Residential Energy Storage Solution Installation Guide (Single-Phase)
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SAJ H2 & HS2 series Initialization Setting - Sept. 2024
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Explore why HS2 series so far is the most popular SAJ ALL-IN-ONE residential energy storage system
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HS2 Webinar in English
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SAJ Electricity Meter setting(H2/B2/HS2/R6/C6,etc)
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SAJ Spotlight @GENERA: Smart Residential Energy Storage Solutions
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Where This Model Fits Best
Use these scenarios to decide whether this model belongs on the shortlist before quote approval.
Home Studio: Quiet, Clean Power for Recording & Streaming
Who it’s for: Creators who need steady, silent power for DAWs, audio interfaces, microphones, LED lights, and streaming gear—without pops, reboots, or fan noise.
Suggested backup map:
| Device | Typical power | Backup? | Notes |
|---|---|---|---|
| Audio interface + preamps | 10–35 W | Yes | Avoid USB reconnect mid-take |
| Studio PC / laptop | 120–300 W | Yes | Protects DAW session from crash |
| Nearfield monitors (pair) | 40–120 W | Yes (mixing) | Mute during transfer test to avoid thumps |
| LED key/fill lights | 20–80 W | Optional | Low surge, stable color temp |
| HVAC / heater / kettle | kW-class | No | Keep off backup to avoid inrush |
Noise & grounding checklist:
- Place the ESS stack outside the live room (utility corner/closet).
- Run a single backup power strip for only studio gear to minimize ground loops.
- Separate audio and lighting cables; cross at 90° if they must meet.
- Do a 2-minute outage test; watch for pops, clicks, or USB reconnects.
Simple daily schedule (recording day):
09:00–17:30 PV → Studio + charge battery 17:30–22:00 Battery → PC, interface, monitors, LEDs Always Reserve SOC 25–30% for late sessions
Quick sizing hint (example only): A 10 kWh usable pack can support ~300–350 W of studio essentials for ≈24–28 hours total runtime (spread across sessions).
Urban Home Office: Quiet Backup for Work & Study
Who it’s for: Apartments or townhouses that need silent, space-saving backup for laptops, Wi-Fi, lighting and a fridge during short grid issues.
Suggested backup pack (example):
| Load | Power | Run time target |
|---|---|---|
| LED lighting (3–5 rooms) | 150–250 W | 4–6 h |
| Wi-Fi router + CCTV | 30–60 W | 24 h |
| Laptop / small PC | 60–120 W | 6–10 h |
| Fridge (inverter type) | 90–150 W avg | 24 h (duty) |
3 quick steps:
- Move essential sockets to the BACK-UP sub-circuit; label clearly.
- Set a reserve SOC (e.g., 25–30%) to keep evening buffer.
- Run a 2-minute outage test; confirm no flicker or device reboot.
Simple daily plan: Daytime: PV → Loads; surplus → Battery Evening peak: Battery → Lights/IT (18:00–22:00) Night buffer: Reserve SOC 25–30%
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.
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