SG04LP1 Single-Phase Hybrid · 3–6 kW
SUN-3/3.6/5/6K-SG04LP1-AU
3–6 kW
48 V low-voltage single-phase hybrid, 3–6 kW. Dual MPPT on the 3.6–6 kW models, up to 16 units in parallel, AC-coupling to retrofit existing PV, and six chargeable time periods. The workhorse residential hybrid.
- Available ratings
- 3 / 3.6 / 5 / 6 kW — SUN-3K, SUN-3.6K, SUN-5K, SUN-6K-SG04LP1-AU
- Rated AC power
- 3 / 3.6 / 5 / 6 kW
- Phase
- Single (230 V)
- Battery
- 48 V LFP, up to 135 A
- Max. PV input
- 4.5–9 kW
- MPP trackers
- 1 (3 kW) · 2 (3.6–6 kW)
- Max. efficiency
- 97.6%
- Parallel
- Up to 16 units
- Warranty
- 10 years
Specifications
Battery input
- Battery type
- Lead-acid or Lithium-ion (self-adaption to BMS)
- Battery voltage range
- 40–60 V (48 V models)
- Max. charge / discharge current
- 70 / 90 / 120 / 135 A (3 / 3.6 / 5 / 6 kW)
- Battery inputs
- 1
PV input
- Max. PV input power
- 4500–9000 W
- Max. PV input voltage
- 500 V
- Start-up voltage
- 125 V
- MPPT voltage range
- 150–425 V
- No. of MPP trackers / strings
- 1/1 (3 kW) · 2/(1+1) (3.6–6 kW)
- Max. operating PV current
- 18 A (3 kW) · 18+18 A (3.6–6 kW)
AC output
- Rated AC power
- 3000 / 3600 / 5000 / 6000 W
- Rated AC current
- 13 / 15.7 / 21.7 / 26.1 A
- Grid voltage / range
- 230 / 240 V, 0.85–1.1 Un
- Grid frequency
- 50 Hz (45–55 Hz)
- Grid connection
- L + N + PE
- Max. continuous passthrough (grid→load)
- 35–40 A
- Peak power (off-grid)
- 2× rated, 10 s
Efficiency
- Max. efficiency
- 97.6%
- Euro efficiency
- 96.5%
General
- Operating temperature
- −40 to +60 °C (derating >45 °C)
- Cooling
- Natural (3–5 kW) · Intelligent air (6 kW)
- Protection degree
- IP65
- Dimensions (W×H×D)
- 330 × 433 × 228 mm
- Weight
- 17 kg
- Communication
- WiFi, RS485, CAN
- Grid standard
- AS/NZS 4777.2
- Warranty
- 10 years
Highlights
- AC-coupling retrofit — add storage to an existing grid-tied solar system without replacing the original inverter.
- Up to 16 units in parallel for both on-grid and off-grid operation, with multiple batteries in parallel.
- Six charge/discharge time periods for tariff-aware battery scheduling (ideal for time-of-use and Amber).
- Generator input — supports storing energy from a diesel generator for backup-heavy sites.
- Colourful touch LCD, IP65 outdoor rating, and arc-fault protection (optional AFCI).
Good to know for AU installs
- Grid code AS/NZS 4777.2 — set the correct region/grid-protection profile during commissioning.
- The 3 kW model is single-MPPT; the 3.6, 5 and 6 kW models have two MPP trackers (one string each) for string flexibility.
- PV current: the documents differ. The June 2026 datasheet gives 18 A operating and 27 A short-circuit current per MPPT. User manual V4.0.0 prints 13 A and 19.5 A. Confirm with Suncloud before designing strings around modules with an operating current above 13 A.
- Pair with stackable 48 V LFP batteries (e.g. RW-M6.1-B, RW-F10.2, or AI-W5.1-B).
Figures are from the official Deye SUN-(3-6)K-SG04LP1-AU datasheet (June 2026 edition). The per-model MPPT count matches user manual V4.0.0 (October 2025), but the manual’s PV current figures do not (see above). Confirm the exact model variant against the linked datasheet before quoting or commissioning.
Plan & design
Before anything is ordered — sizing, pairing and design decisions for the SG04LP1 Single-Phase Hybrid · 3–6 kW.
Pairs with
Install & commission
On the wall, wired, energised and registered — in the order the job actually runs.
Operate & configure
Monitoring, tariffs, work modes — getting the most out of the system after handover.
- Guide Deye system work modes explained intermediate · 6 min read
- Guide Set up Time-of-Use (TOU) on a Deye system intermediate · 6 min read
- Guide Connect a Deye battery to Amber Electric (Deye Copilot) intermediate · 5 min read
- Guide Deye Copilot — setup, settings and AI strategies intermediate · 7 min read
- Guide Connect a logger to Wi-Fi & DeyeCloud beginner · 5 min read
- Guide 4G logger setup beginner · 3 min read
- Guide Deye warranty explained (AU / NZ) beginner · 5 min read
Troubleshoot
Known issues for this model, worst first — and every fault code it can show.
- Check External meter not communicating (SDM120) The inverter reports no meter / meter offline, even though the SDM120 display is lit.
- Check F13 — F13 — grid abnormal / won't reconnect Inverter shows F13 and drops off-grid, or won't start exporting after commissioning.
- Check Import / export readings are reversed DeyeCloud shows the system exporting when the house is drawing power (or the battery charg…
- Check W04 warning — meter address collision (001 / 002) The inverter raises a W04 warning — often right after enabling Grid Tie Meter2, even on a …
- Check Won't export / nuisance trips after commissioning New install powers up but won't export, or trips intermittently — no obvious hardware faul…
- Info Deye fault (F) code reference The inverter LCD or DeyeCloud shows an F-code (e.g. F13, F55, F58) and you need to know wh…
- Info Logger keeps going offline in DeyeCloud The plant shows offline / stale data in DeyeCloud, or the Wi-Fi logger won't connect to th…
Documents
Everything published for the SG04LP1 Single-Phase Hybrid · 3–6 kW — and where something is missing, it says so instead of hiding the row.
System & shared documents
Not specific to the SG04LP1 Single-Phase Hybrid · 3–6 kW — these apply across the range and live here once, not copied per model.
