Sunsynk 5kW ECCO Single-Phase Hybrid Inverter
The Sunsynk ECCO 5kW (part number SUN-5.0-ECCO, model SYNK-5K-SG04LP1) is a 5 kW single-phase hybrid inverter with a 6,500 W dual-MPPT PV input, designed for residential solar and battery storage. The ECCO can charge batteries and export simultaneously, connecting up to 6.5 kW of PV to export 5 kW while using surplus energy to charge batteries. Compatible with lithium-ion and lead-acid batteries (48 V, 40–60 V). Essential and non-essential load outputs. Automatic switching between grid-tied and off-grid modes. Up to 16 units in parallel. IP65 rated. WiFi logger and CT included. G99 certified. Available from DECO Group, a UK-based solar trade wholesaler.
Key Technical Details
- Part number: SUN-5.0-ECCO
- Supplier part number: SYNK-5K-SG04LP1 ECCO
- Inverter type: Single-phase hybrid (PV inverter and battery storage controller)
- Rated AC output power: 5,000 W
- Maximum AC power (5 minutes): 5,500 W
- Surge AC power (1 second): 11,000 W
- Euro efficiency: 96.5%
- Maximum PV input power: 6,500 W
- Maximum input voltage: 500 V
- MPPT voltage range: 150 V to 425 V
- DC startup voltage: 125 V
- Maximum DC input current: 26 A total (13 A + 13 A)
- MPPT quantity: 2 (1 string per MPPT)
- Connector: MC4
- Integrated DC switch: Yes
- Transformer: None (transformerless)
- Battery type: Lithium-ion or lead-acid
- Battery voltage: 48 V DC (40–60 V range)
- Ingress protection: IP65
- Weight: 17.5 kg
Key Features
- 5 kW rated output with 6.5 kW PV input — can export and charge batteries simultaneously
- Dual MPPT design for flexible array configuration
- Essential and non-essential load outputs for load prioritisation
- Compatible with lithium-ion and lead-acid batteries (48 V, 40–60 V)
- Automatic switching between grid-tied and off-grid modes
- Zero export function
- Up to 16 units in parallel with the same firmware
- Multiple operating modes: grid-tie only, hybrid, off-grid, battery only, AC couple
- Generator input supported
- Anti-islanding protection
- IP65 rated for indoor or outdoor installation
- Compatible with Octopus Agile, Flux, and Go tariffs
- WiFi logger and CT included in the box
Included Components
- 1 x Sunsynk 5 kW ECCO hybrid inverter
- 1 x WiFi logger
- 1 x CT clamp
System Compatibility
- Compatible battery systems include: Sunsynk CATL 5.12–25.6 kWh, Pylontech Force-L2 7.1–14.2 kWh, Pylontech US2000C 2.4–38.4 kWh, Pylontech US3000C 3.55–56.8 kWh, Pylontech US5000 4.8–76.8 kWh, and others
- DC and AC coupling supported for new-build and retrofit installations
- Up to 16 units in parallel
- Up to 16 batteries connected to a single inverter
Installation Notes
- At 17.5 kg, single-person installation is feasible
- IP65 rated for indoor or outdoor installation
- Must be installed by a qualified electrician or technician
Certifications and Compliance
Warranty
- Standard warranty: 5 years
Common Questions
Click a question below to reveal the answer.
What is the difference between the Sunsynk 3.6kW and 5kW ECCO?
The 5 kW ECCO delivers higher rated output (5 kW vs 3.6 kW) with 6.5 kW max PV input (vs 7 kW on the 3.6 kW). The 5 kW model includes essential and non-essential load outputs, a WiFi logger and CT in the box. Both share the same ECCO platform with dual MPPT, 48 V battery support, and up to 16 units in parallel.
Does the Sunsynk 5kW ECCO include a WiFi logger?
Yes. The 5 kW ECCO comes with a WiFi logger and CT clamp in the box.
Can I start with just the inverter and add batteries or panels later?
Yes. You can start with UPS backup (batteries and inverter only, adding panels later), grid-tied (panels and inverter only, adding batteries later), a complete hybrid system, or a fully off-grid system.
Can the Sunsynk ECCO work with Octopus energy tariffs?
Yes. The ECCO supports integration with Octopus Agile, Flux, and Go tariffs for optimised battery charging and discharging based on electricity prices.
About Sunsynk
Sunsynk is an internationally recognised inverter and battery storage brand offering a wide range of hybrid, off-grid, and grid-tied products for residential and commercial solar installations.
DECO Group supplies Sunsynk hybrid inverters, batteries, meters, and system accessories. Browse our Sunsynk catalogue for complete residential solar storage solutions.
About DECO Group
We supply hybrid inverters, battery systems, and installation accessories to professional installers across the UK. Visit decogroup.co.uk for the full catalogue.
