SAJ H2 5–12kW Low Voltage Single Phase Hybrid Inverter

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技术规格

交流电	5千瓦 - 12千瓦
逆变器类型	混合逆变器
MPP 电压范围	90 – 480 伏特
MPP 追踪器	2
阶段	1
沟通	RS485, RS232, CAN, Wi-Fi, Ethernet, 4G
每包件数	每箱1件，每托盘10件
保修	5 years (extendable to 10 years)

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产品描述

SAJ H2 5 – 12 kW Low-Voltage Hybrid Inverter (LS2)

Single-phase hybrid inverter for entry-level storage markets.
20 串联电流, 200 % DC oversizing and dual-MPPT architecture harvest more power while a built-in meter enables zero-export control. Up to four units can run in parallel, delivering seamless 20 ms UPS backup, generator charging and smart-load management – all in a compact 29 kg IP65 chassis.

设计

尺寸	590 × 380 × 241 mm
重量	29 kg
冷却	智能风扇 < 50 分贝
附件	铝制，IP 65

光伏及交流规格

额定交流功率	5 / 6 / 7.6 / 8 / 10 / 12 kW
最大光伏发电量	10 – 24 kW DC (200 %)
MPPT 跟踪器 / 串联组	2 × 1 (90 – 480 V, 20 A ea.)
网格输出	L N PE, 220/230/240 V
UPS 备用电源	5 – 12 kVA, < 20 ms transfer
最大效率	97.6 %
THD（电网）	< 3 %

电池规格

化学	48 V Lead-acid or LiFePO₄
电压范围	40 – 60 V
最大充电/放电	100 A (5 – 8 kW) / 120 A (10 – 12 kW)
往返 η	up to 96.6 %

智能功能

Self-Use, TOU, Backup & Generator/Smart-Load modes
Built-in meter for zero-export & CT limit control
Parallel up to 4 units on-grid or off-grid
AFCI (optional) & rapid shutdown ready
蓝牙液晶屏 + Elekeeper 应用；Wi-Fi / 以太网 / 4G 云服务及 OTA 更新

安全与合规

DC switch, Type II AC & DC SPDs, RCMU, GFCI & DCI
主动防孤岛、交流短路及过载保护
Certified to EN 62109-1/2, AS 4777.2, VDE-AR-N 4105, CEI 0-21 and more

安装与服务

Wall-mount bracket, terminal-block PV / AC / battery
Smart-meter & CTs included; parallel & generator terminals onboard
通过Elekeeper应用在几分钟内完成佣金结算
SAJ全球服务网络

保修

标准封面	5年
扩展选项	10年

产品资源

产品视频展示

观看我们的产品演示和教程

SAJ H2 5-12k LS2 Open inside

SAJ Next-Generation H2 LV Hybrid Inverter

SAJ H2 5-12k LS2 Battery parameters setting

SAJ H2 5-12k LS2 Grid standard setting

SAJ H2 5-12k LS2 B3+H2LV installation

SAJ在瑞典的精彩案例——2023年 - EN

应用场景

了解该产品如何应用于各种实际场景

Urban Home Office: Quiet Backup for Work & Study

适用对象： Apartments or townhouses that need a silent backup for laptops, Wi-Fi, lights, and a fridge while working from home.

Why H2-5k~12k fits: Single-phase hybrid design, wall-mount IP65, low-voltage battery compatibility (40–60 V). Fan noise is low, suitable for indoor utility corners.

Suggested backup pack (example):

加载	功率	Hours/day
LED lighting (2–4 rooms)	120–200 W	4–6 h
Wi-Fi router + CCTV	25–45 W	24 h
Laptop / small PC	60–120 W	6–10 h
冰箱（变频型）	平均90–150 W	24 h (duty)

3 quick steps:

Move essential sockets to the 备份 sub-circuit; label clearly.
Set a reserve SOC (e.g., 25–30%) so evening outages still have power.
Run a 2-minute outage test; confirm seamless transfer and load order.

“Power blinked during a call—laptop and Wi-Fi stayed up. No interruption.” — Home worker feedback

H2-5k-12k-low-voltage-hybrid-inverter-application-Urban Home Office

Suburban House with TOU Tariffs: Cut Bills with Simple Scheduling

适用对象： Detached houses with 5–10 kW PV looking to shift energy from cheap night rates to the evening peak.

Typical setup: PV 5–10 kW on 2 MPPTs; battery 8–15 kWh (low-voltage pack); backup branch for lights, IT, and a fridge.

How savings happen (simple plan):

Charge (off-peak):  00:00–05:00
Daytime:            PV → House; surplus → Battery
Discharge (peak):   18:00–22:00
Reserve SOC:        25–30%

2 MPPTs handle east/west or south split roofs cleanly.
Use the app to adjust times each season as daylight shifts.
Keep heavy appliances (oven, large compressor) on non-backup.

组件	推荐	理由
光伏阵列	5–10 kW	满足日间基础负荷需求 + 为电池充电
Battery	8–15 kWh	2–4 h peak shaving
模式	Self-Use + TOU	Automated schedule; easy to tweak

提示： Check the app’s daily report; if the battery often sits full at noon, slightly extend peak discharge or increase evening loads like laundry.

H2-5k-12k-ls2-hybrid-inverter-application-Suburban House

Small Retail / Clinic (Single-Phase): Keep Sales & IT Online

适用对象： Street-level shops, clinics, or cafés that run POS, lights, a small fridge, and basic IT—wanting steady service during short grid issues.

Recommended kit:

PV 6–10 kW split across 2 MPPTs (east/west or south split)
Battery 10–16 kWh for evening hours
Backup branch: POS, lighting, router/CCTV, small freezer

Energy flow (typical day):

Time block	Flow	注
上午–下午	光伏 → 负载；富余电力 → 电池	Covers base load while open
傍晚	Battery → POS, lights, IT	Smooth checkout during peak
停电	Seamless backup output	No reboot on POS/router

Quick continuity checklist:

Label backup vs non-backup circuits at the board.
Keep high inrush appliances (big compressor, ovens) on non-backup.
Run a 10-minute test with the site open; check card terminals and printers.

“Short brownout—POS never dropped, customers didn’t notice.” — Store owner

H2-5k-12k-low-voltage-hybrid-inverter-application-Small Retail

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常见问题解答

查找有关我们产品和服务的常见问题解答

How do I choose between 5k, 6k, 7.6k, 8k, 10k, and 12k for my site?

Quick idea: pick by daytime peak load + roof PV space; size battery by evening use hours.

Site type	Peak load	Inverter	PV (typ.)	Battery (2–4 h)
Home + home office	3–6 kW	5–6 kW	5–8 kW	7–12 kWh
Villa / small shop	6–10 kW	7.6–10 kW	8–12 kW	10–20 kWh
Clinic / café with IT	8–12 kW	10–12 kW	10–16 kW	12–24 kWh

What the H2-5–12k LS2 gives you: 2 MPPTs for split roofs (90–480 V MPPT), IP65 wall-mount, quiet ≤50 dBA, single-phase grid. Use high-current strings within the model limits. :contentReference[oaicite:0]{index=0}

Checklist before you lock size:

List 5 critical loads you want alive in outages (backup branch).
Count roof strings for 2 MPPT distribution; keep within 500 V DC max and current limits per model. :contentReference[oaicite:1]{index=1}
Confirm local grid profile and breaker size (see FAQ 5 table).

What’s in the box, and which documents will I receive?

Typical package (by model):

项目	Use
Hybrid inverter	PV + battery controller
通信模块（Wi-Fi/4G）	App/portal connectivity
CT (external)	Metering & energy flow sensing
Terminal kit, battery temp sensor	Clean wiring / lead-acid temp comp.
Mounting hardware + hole template	Fast wall install
Documents pack	Quick Guide, User Manual, Warranty

Sunriver Electric supplies the latest digital PDFs (datasheet, quick guide, user manual) on request to speed up approvals and site prep. :contentReference[oaicite:2]{index=2}

Before installation:

Inspect carton for damage; verify exact model on the label.
Lay out connectors separately to avoid cross-wiring.
Read safety notes; install only by qualified electricians.

提示： keep the hole-positioning paper; it speeds drilling and keeps clearances correct for cable entry. :contentReference[oaicite:3]{index=3}

What batteries can I use, and how big should the pack be?

Battery types: LiFePO₄ or lead-acid, low voltage 40–60 V. Use BMS CAN/RS485 mapping for lithium; connect the temp sensor for lead-acid. :contentReference[oaicite:4]{index=4} :contentReference[oaicite:5]{index=5}

Model range: H2-5K/6K/7.6K/8K/10K/12K-LS2; check per-model charge/discharge current in the datasheet when finalizing packs. :contentReference[oaicite:6]{index=6}

Simple sizing (examples):

Use case	Evening load	Battery (kWh)
Home + fridge + IT	1.5–2.5 kW × 3 h	6–8
Villa / small shop	2–4 kW × 3–4 h	10–16
IT-heavy home office	1–2 kW × 6 h	8–12

Connection notes:

Use the correct battery cable size (up to 0 AWG on 10 kW); torque to spec. :contentReference[oaicite:7]{index=7}
Insert via BAT gland to BAT+/BAT− terminals; add isolator ≥70 A if required by local code. :contentReference[oaicite:8]{index=8}
For lithium, wire BMS to BMS_CAN; for lead-acid, connect the temp sensor to COM1. :contentReference[oaicite:9]{index=9}

How does backup work, and what should go on the backup branch?

The inverter switches to battery and keeps critical loads running immediately and seamlessly during a grid outage. This avoids flicker or reboots on essential circuits. :contentReference[oaicite:10]{index=10}

Put on BACK-UP: LED lighting, router/CCTV, laptops/PCs, fridge (inverter type).

Keep on non-backup: EV charger, large ovens, big compressor motors (inrush current). :contentReference[oaicite:11]{index=11}

模式	AC output (backup)	THDv
H2-5–12k LS2	up to rated VA, 60 s peak headroom	<3% (linear load)

Use the separate BACK-UP terminals shown in the junction box; label the backup sub-board clearly. :contentReference[oaicite:12]{index=12}

What AC breaker and cable sizes should I prepare (by model)?

Grid-side breaker & cable (from Quick Guide):

型号	AC breaker	Cable size (L/N)
H2-5K-LS2	50 A	8 AWG
H2-6K-LS2	63 A	8 AWG
H2-7.6/8K-LS2	80 A	8 AWG
H2-10K-LS2	100 A简体中文（大陆）	6 AWG

Notes:

Keep total voltage drop ≤2% from point of grid connection; upsize cable if the run is long.
Strip lengths: 20 mm for LOAD/GRID, 10 mm for GEN; torque to the listed values in the guide. :contentReference[oaicite:13]{index=13}
Follow local codes for breaker curves and RCD selection.

How do I commission and monitor with the Elekeeper app?

Download Elekeeper (iOS/Android). Choose language and Overseas Node; register if needed. :contentReference[oaicite:14]{index=14}
Local connect via Bluetooth → select inverter SN → run the Initialization wizard. :contentReference[oaicite:15]{index=15}
Set battery brand/mode, wiring (with/without meter/CT), and country/grid compliance profile. :contentReference[oaicite:16]{index=16}
Join Wi-Fi/Ethernet/4G for remote monitoring; create the plant for the owner. :contentReference[oaicite:17]{index=17}

What you can do daily: check PV/battery/load flow, SOC, alarms; switch modes (Self-Use / Backup / TOU); view reports; update firmware when prompted. :contentReference[oaicite:18]{index=18}

简易TOU电价表（示例）：

Charge (off-peak): 00:00–05:00
Discharge (peak):  18:00–22:00
Reserve SOC:       25–30%

If Italy: run the built-in CEI 0-21 self-test and save the report from the app. :contentReference[oaicite:19]{index=19}

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混合逆变器