SAJ H2 10–30kW Three Phase Hybrid Inverter

H2-10k~30k Dreiphasen-Hybrid-Wechselrichter

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H2-(10-30K)-T2,T3 Series Three-phase RD647 and UNE 217002 Certificate-ES_02

H2-(10-30K)-T2,T3 Series Three-phase RD647 and UNE 217002 Certificate-ES_03

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Technical Specifications

AC Power	10kW - 30kW
Inverter Type	Hybrid-Wechselrichter
MPP Voltage Range	180 – 900 Volt
MPP Tracker	2 – 3 (model-dependent)
Phases	3
Communication	CAN, RS485, RS232, Wi-Fi, Ethernet, 4G, DRM
Pieces per Package	1 per carton, 4 per pallet
Warranty	5 years (extendable up to 15 years)

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Product Description

SAJ H2 10 – 30 kW Three-Phase Hybrid Inverter (T2 / T3)

Heavy-duty hybrid inverter for commercial villas and light-industrial roofs.
98 % peak efficiency, 3 × MPPT up to 20 A per string and dual 50 A battery ports deliver rock-solid performance, while 150 % DC oversizing, 110 % AC overloading and < 20 ms UPS switchover maximise uptime and yield.

Design

Size	576 × 659 × 242 mm
Weight	50 kg
Cooling	Intelligent fan < 50 dB
Enclosure	IP 65 aluminium, C5 anti-corrosion

PV & AC Specs

Rated AC Power	10 / 12 / 15 / 20 / 25 / 30 kW
Max PV Power	20 – 45 kW DC (150 %)
MPPTs / Strings	2 × 2 (T2) or 3 × 2 (T3)
MPPT Range	180 – 900 V DC
Max String Current	20 A (40 A per MPPT)
Grid Output	3L+N+PE 220/380 – 240/415 V
AC Overload	110 % for 60 s
UPS Backup	10 – 30 kVA, < 20 ms transfer
Maximale Effizienz	98 %

Battery Specs

Chemistry	LiFePO₄ (HV 180 – 800 V)
Ports	2 × 50 A (1C charge / discharge)
Round-trip η	97.6 %
Compatible stacks	Up to two battery banks (CAN)

Smart Functions

Self-Use, Time-of-Use, Backup & Peak-shaving modes
Zero-export & dynamic limit via SAJ smart meter
100 % three-phase imbalance support
Optional AFCI 20 A for arc-fault shutdown
Bluetooth LCD + Elekeeper app; Wi-Fi / Ethernet / 4G cloud & OTA updates

Safety & Compliance

Type II AC & DC SPDs, DC switch, RCMU, GFCI, DCI & insulation monitoring
Active anti-islanding (AFD), AC short-circuit & overload protection
Meets EN 50549, CEI 0-21/0-16, AS 4777.2, VDE-AR-N 4105, G98/G99 …

Install & Service

Wall-mount bracket, MC4 PV inputs, quick-fit AC & battery plugs
Smart meter, CT set & AIO3 communication module included
Commission in minutes via Elekeeper app
Global SAJ support network

Warranty

Standard Cover	5 years
Extension Options	10 / 15 years

Product Resources

Download the latest user manual & datasheet:

H2 Series H2 10-30k Three Phase Inverter Datasheet (5744 downloads ) H2 Series H2-10-30K Inverter Quick Installation Guide (5393 downloads ) H2 Series H2-10-30K Three Phase Inverter User Manual (5223 downloads )

Product Video Showcase

Watch our product demonstrations and tutorials

SAJ's beautiful and stunning case reference in Sweden - 2023 - EN

SAJ Installation Guidance & Addressing Common Installation Issues and Solutions

SAJ H2&B2 Installation tutorials

SAJ at ☀SNEC ES+ 2023 Shanghai: Revolutionize Energy Storage Solutions - 2023 - EN

SAJ H2 & B2 High Voltage Energy Storage Solution

Smarter and More Profitable - SAJ at Intersolar Europe 2023

Application Scenarios

Discover how this product can be used in different real-world scenarios

C&I Rooftop (10–30 kW): Office / Clinic / Supermarket

Who it’s for: Small-to-mid commercial buildings that need three-phase supply, seamless backup for IT/POS, and TOU bill savings.

Component	Recommended	Why
PV array	12–30 kW on 2–3 MPPTs (2 strings/MPPT)	Covers daytime base load; handles mixed roof aspects
HV battery	15–30 kWh (dual HV ports supported)	Shaves evening peaks; rides through short outages
Backup bus	POS, lighting, networking, cashier PCs	Keeps operations online (UPS ≤20 ms)

Ergebnis: Sales & IT stay online during brownouts; TOU scheduling moves energy from off-peak to peak; zero-export available if the DSO requires.

Three-phase balance checklist:

Distribute single-phase sub-circuits across L1/L2/L3
Keep high-inrush motors (compressors) on non-backup side
Verify export limit readings before handover (screenshot)

“Two grid dips this week—checkout systems never rebooted.” — Facility Manager

H2-10k-30k-hybrid-inverter-application-C&I Rooftop

EV-Ready Villa / Boutique Hotel: HVAC + Night Peak Shaving

Who it’s for: Villas or small hotels with three-phase HVAC/heat pump and EV charging, aiming for comfort + lower bills.

Why it fits: Three-phase hybrid output + high-voltage battery handles evening peaks; UPS transfer ≤20 ms protects lighting/IT from flicker.

Suggested setup:

PV 15–25 kW across 2–3 MPPTs (split S/E/W)
Battery 20–30 kWh; reserve SOC 25–30% for outages
EV charger and HVAC placed on non-backup branch

Simple TOU plan (code style):

Charge (off-peak):   00:00–05:00
Discharge (peak):    18:00–22:00
Reserve SOC:         25%
Export Limit:        0 W (if required)

Installer notes:

Balance single-phase sub-loads across L1/L2/L3
Leave backup bus for lights, IT, security, elevators (if small)
Save screenshots of grid profile and export-limit for records

H2-10k-30k-hybrid-inverter-application-EV-Ready Villa

Apartment Building Common Areas: Night Security & Cost Control

Who it’s for: Multi-unit residential buildings needing quiet, seamless backup for corridors, lobby IT, and security—plus lower common-area bills.

Why H2-10k~30k fits: Three-phase hybrid output matches building services; dual HV battery ports scale from ~20–40 kWh; transfer ≤20 ms keeps lights/CCTV steady; noise <50 dBA suits indoor electrical rooms.

Subsystem	Typical power	Backup?	Notes
Corridor & stairwell LEDs	300–800 W	Yes	No flicker during dips (UPS ≤20 ms)
CCTV + access control	50–120 W	Yes	24/7 continuity for security
Lobby/concierge IT	150–300 W	Yes	Routers, PCs, intercoms stay online
Water booster / elevator	kW-class	No	Leave on non-backup (high inrush)

Energy plan (simple):

PV daytime:      PV → Corridors/Lobby IT; surplus → Battery
Evening peak:    Battery → Corridors/CCTV (18:00–23:00)
Night buffer:    Reserve SOC 25–30% for late-night security
Maintenance:     Download monthly report; review alarms

Commissioning essentials:

Balance single-phase branches across L1/L2/L3 to reduce neutral loading.
Move essential circuits (LEDs/CCTV/IT) to the backup panel; label clearly.
Run a 2-minute outage test; confirm transfer time and load priority.

Recommended PV: 12–24 kW on 2–3 MPPTs; Battery: 20–40 kWh (dual HV ports).
Keep motors (pumps/elevators) on non-backup; schedule starts outside evening peaks.
Save screenshots of final parameters and monthly kWh report for board records.

“Two outages this month—corridors stayed lit and cameras never dropped.” — Building Manager

H2-10k-30k-hybrid-inverter-application-Apartment Building

How We Work With You

From your first call to final delivery, we make the process simple and clear

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.

Ready to start your project?

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Häufig gestellte Fragen

Find answers to common questions about our products and services

How do I choose the right inverter size (10k / 12k / 15k / 20k / 25k / 30k)?

Quick rule: Size the inverter by your peak daytime load and roof PV potential, not just the meter rating.

Site type	Typical peak load	Suggested inverter	PV array	Battery (evening 2–4h)
Small clinic / store	6–9 kW	10–12 kW	8–12 kW	10–15 kWh
Villa w/ heat pump	10–14 kW	15–20 kW	12–18 kW	15–20 kWh
Workshop / small factory	15–24 kW	20–25 kW	18–30 kW	20–30 kWh
Large retail / EV-ready	22–30 kW	25–30 kW	24–36 kW	25–40 kWh

Rules of thumb:

PV size ≈ 1.2–1.5 × average daytime load (roof & policy permitting).
Battery kWh ≈ evening peak kW × hours + 15–25% reserve.
Put EV charger / heavy motors on the non-backup side.

Checklist before you lock the size:

List top 5 loads you must keep during outages (backup bus).
Confirm roof orientations for 2–3 MPPT distribution.
Check local limits (export cap / phase balance / DNSP rules).

How does backup work and what wiring rules matter most?

Transfer time: ≤20 ms (datasheet also describes UPS 10 ms capability). Use backup for essential loads that must not reboot.

Model class	Recommended AC breaker
10–20 kW	50 A
25–30 kW	63 A

Grid/backup neutrals: In AU/NZ system diagrams, grid-side N and backup-side N are common; PE at the BACK-UP port is not connected. Follow local codes.

Balance single-phase loads across L1/L2/L3; keep high-inrush devices off backup.
Use 10–16 mm² AC cable (16 mm² recommended) and 8 mm² additional ground as guided.
Confirm LED/app status after a simulated grid-off test.

What can I actually do in the app day-to-day (without touching wiring)?

At a glance: See live PV, battery SOC, export power, and each phase’s load. Get alerts if something trips or a setting changes.

Everyday tasks you’ll use most:

Switch working modes: Self-Use / Backup / Time-of-Use.
Set a Reserve SOC (e.g., 25–30%) for evening outages.
Turn Zero-Export on/off if your utility requires it.
Check yesterday’s energy report and monthly trend.
Run a firmware update when prompted (one tap, no site visit).

Simple TOU schedule (example):

Charge (off-peak):   00:00–05:00
Discharge (peak):    18:00–22:00
Reserve SOC:         25%
Export Limit:        0 W (if policy needs it)

Pro tip: Share a “viewer” role with your client or manager so they can see the dashboard and bills-savings graph without changing settings.

How should I size PV strings and the HV battery for H2-10k~30k?

PV side: Max 1000 Vdc; MPPT 180–900 V; up to 3 MPPTs with 2 strings/MPPT. DC input currents 40/40/40 A allow modern high-current strings.

Rule of thumb: Aim for mid-window MPPT voltage (~500–750 V) for winter mornings; ensure string Voc(@ Tmin) stays <= 1000 V.

Example:
Panel Voc(stc)=49 V; TempCoeffVoc=-0.28%/°C; Tmin=-10°C
Voc(@-10°C)=49×[1+0.0028×(25-(-10))]≈53.8 V
Max series ≈ floor(1000/53.8)=18 modules/string

Battery side: LiFePO₄ 180–800 V; dual ports; max charge/discharge 2×50 A. Use CAN/RS485 BMS mapping for accurate SOC and safe curves.

Supports ~150% DC oversizing to boost yield in low-irradiance hours.
Supports three-phase voltage imbalance and fast battery charge/discharge.

How do I commission and monitor (app, grid profile, Volt-Var/Volt-Watt)?

Install the Elekeeper app (formerly eSAJ Home); choose Overseas Node; bind device by SN via Bluetooth.
Select country/grid profile (e.g., AS4777_A/B/C for AU) and save protection parameters.
Connect Wi-Fi/Ethernet/4G module for cloud; monitor via app or eSolar web.

Working modes: Self-consumption, Backup (with reserve SOC), Time-of-Use scheduling.

Power quality: Fixed PF/Var, Volt-Watt and Volt-Var per AS/NZS 4777.2 / DNSP presets. Review after firmware updates.

Simple TOU example:
Charge (off-peak): 00:00–05:00
Discharge (peak): 18:00–22:00
Reserve SOC: 25%
Export Limit: 0 W if required by utility

What ships with the inverter and how does Sunriver help you deploy faster?

In the box (typical AU set):

Item	Use
Hybrid inverter unit	PV + Battery control (on/off-grid)
Mounting bracket & hardware	Wall install
PV/battery connectors, AC terminals	Clean terminations
Smart meter (DTSU666) + 3 CTs + 10 m RS485	Export limit & energy data
Waterproof covers (AC/Comm/DC)	IP65 integrity
Quick Guide + User Manual	Wiring & commissioning

What we prepare for you:

FOB pricing and model matching for 10–30 kW sites
Digital manuals, quick guides, and compliance certificates on request
Meter/CT wiring notes and Export-Limit setup checklist

Pre-install checks: confirm breaker size (50 A or 63 A), CT orientation (→ grid), RS485 A/B polarity, and grid profile selection in the app.

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