Deye SUN-3.6/5/6K-SG03LP1-EU Hybrid Inverter

The Deye SUN-3.6/5/6K-SG03LP1-EU is the single-phase gateway into 51.2 V hybrid storage—compact enough for residential switchboards yet architecturally identical to larger LP3 hybrids (GEN port, UPS transfer, CAN BMS).

Tech Specs

Deye SUN-3.6/5/6K-SG03LP1-EU Hybrid Inverter — Tech Specs
Parameter	SUN-3K-SG04LP1-24-EU-SM1	SUN-3K-SG04LP1-EU-SM1	SUN-3.6K-SG04LP1-EU-SM2	SUN-5K-SG04LP1-EU-SM2	SUN-6K-SG04LP1-EU-SM2
Battery Input Data
Battery Type	Lead-acid or Lithium-ion
Battery Voltage Range(V)	20-30	40-60	40-60	40-60	40-60
Max.Charging/Discharging Current(A)	140	70	90	120	135
Charging Strategy for Li-ion Battery	Self-adaption to BMS
Number of Battery Input	1
PV String Input Data
Max. PV Access Power (W)	6000	6000	7200	10000	12000
Max. PV Input Power（W）	4800	4800	5760	8000	9600
Max. PV Input Voltage（V）	500
Start-up Voltage（V）	125
MPPT Voltage Range（V）	150-425
Rated PV Input Voltage(V)	370
Max Operating PV Input Current（A）	18	18	18+18	18+18	18+18
Max Input Short-Circuit Current（A）	27	27	27+27	27+27	27+27
No.of MPP Trackers/No.of Strings MPP Tracker	1/1	1/1	2/1+1	2/1+1	2/1+1
AC Input/Output Data
Rated AC Input/Output Active Power（W）	3000	3000	3600	5000	6000
Max. AC Input/Output Apparent Power （VA）	3300	3300	3960	5500	6600
Rated AC Input/Output Current（A）	13.7/13.1	13.7/13.1	16.4/15.7	22.8/21.8	27.3/26.1
Max. AC Input/Output Current（A）	15/14.4	15/14.4	18/17.3*	25.0/24.0	30/28.7
Max. Continuous AC Passthrough (grid to load)（A）	35	35	35	35	40
Peak Power (off-grid)（W）	2 times of rated power,10s
Rated Input/Output Voltage	220V/230V 0.85Un-1.1Un L+N+PE
Rated Input/Output Grid Frequency/Range(Hz)	50/45-55,60/55-65
Power Factor Adjustment Range	0.8 leading to 0.8lagging
Total Current Harmonic Distortion THDi	<3% (of nominal power)
DC Injection Current	<0.5%ln
Efficiency
Max. Efficiency	97.6%
Euro Efficiency	96.5%
MPPT Efficiency	>99%
Equipment Protection
Integrated	DC Reverse Polarity Protection, AC Output Overcurrent Protection, Thermal Protection, AC Output Overvoltage Protection, AC Output Short Circuit Protection, DC Component Monitoring, Arc Fault Circuit Interrupter (optional), Anti-islanding Protection, DC Switch, Insulation Impedance Detection, Residual Current Detection
Surge Protection Level	TYPE II(DC),TYPE II(AC)
Interface
LCD/LED Display	LCD
Communication Interface	WIFI, RS485, CAN
General Data
Operating Temperature Range	-40 to+60℃,>45℃ Derating
Permissible Ambient Humidity	0~100%
Permissible Altitude	2000m
Noise(dB)	＜45
Ingress Protection(IP) Rating	IP 65
Inverter Topology	Non-Isolated (solar), Isolated (battery)
Over Voltage Category	OVC II(DC),OVC III(AC)
Cabinet size（WHD）[mm]	376470241.5（Excluding connectors and brackets）
Weight[kg]	17.6	17.6	17.6	19	19
Warranty	5 Years/10 Years the Warranty Period Depends the Final Installation Site of Inverter, More Info Please Refer to Warranty Policy
Type Of Cooling	natural cooling
Grid Regulation	IEC 61727,IEC 62116,CEI 0-21,EN 50549,NRS 097,RD 140,UNE 217002,OVE-Richtlinie R25,G99,VDE-AR-N 4105
Safety EMC/Standard	IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2

Single-phase Georgian homes face asymmetric loads—HVAC on one leg, lighting on another. The SG03LP1 series supports backup transfer in milliseconds while remaining grid-tied for net metering when the utility allows. Battery expansion uses parallel 51.2 V modules (HECKMAN RLFP/WLFP, ECOBSS STORE) with CAN communication to the inverter BMS port.

The GEN port enables AC Coupling: retrofit an existing On-Grid string under hybrid supervision—critical when homeowners already invested in PV and now need blackout resilience after tariff hikes. Off-Grid logic can force the string inverter offline to protect battery SOC; On-Grid mode releases it for maximum harvest.

Metering defaults to CHINT DTSU 666 CT kits. Beyond 30 m to the billing point, specify Eastron SDM Modbus V2 with RS485 or PLC carriers. N-PE bonding relay behavior matches three-phase LP3 units—open on grid, closed on island—follow local grounding codes for separated neutral installations.

Ideal for

✓ Single-phase homes requiring backup without three-phase service
✓ Retrofit projects AC-coupling legacy On-Grid PV
✓ Installers standardizing on 51.2 V CAN BMS across residential SKUs

Compatible batteries

Often added together

Technical FAQ

Maximum battery capacity?

Determined by compatible 51.2 V modules and inverter charge/discharge limits—typically multiple parallel HECKMAN or ECOBSS units within Deye's approved list.

Can this run three-phase loads?

No—it is single-phase output. Three-phase homes need SUN-12K/20K LP3 or HP3 hybrids.

Difference vs EcoBSS FLEX 3L?

Deye uses stock firmware scheduling toggles; EcoBSS FLEX ships PowerWallet EMS with unified buy/sell/auto windows and native 51.2 V ECOBSS STORE integration.

Parallel inverters?

LP1 residential models do not scale to 10-unit CAN parallel like SG04LP3—size up to 12K/20K three-phase for larger homes.

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