Description

Product Description

The Sunsynk Loadshedder 4 is an all-in-one hybrid solar inverter and battery solution designed to manage solar generation, battery charging and discharging, grid interaction, and essential load supply during power outages or load shedding events. The system integrates a high efficiency 4 kW inverter, built-in MPPT solar charge controller, and lithium battery pack within a single unit for simplified installation and operation.

The hybrid inverter intelligently prioritises solar energy use, charges the battery from solar or grid power when available, and supplies backup power to essential loads when grid power is unavailable. The integrated battery storage provides immediate backup support, while additional external batteries can be added for increased capacity. The system supports remote monitoring and control via the Sunsynk Connect platform.

The Loadshedder 4 is ideal for households and small businesses that require dependable backup power, efficient solar self consumption, and a compact integrated solution that minimises installation complexity.

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Technical Specifications

Inverter Specifications

• Rated continuous power output 4000 W

• Nominal AC output voltage 230 Vac

• Nominal output frequency 50 Hz

• Pure sine wave output

• Hybrid inverter managing PV, battery, and grid sources

• Built-in MPPT solar charge controller

• MPPT voltage range 120 V to 450 V DC

• Maximum solar PV input power approximately 4000 W

• Maximum DC PV input voltage 500 V

• Dual MPPT channels for flexible PV array configuration

• Inverter efficiency up to approximately 95 percent

• Protection functions including overcurrent, overvoltage, short circuit, over temperature and inverter fault detection

Battery Specifications

• Battery chemistry Lithium iron phosphate LiFePO4

• Integrated battery capacity (varies by model) typically between 2 kWh and 4 kWh depending on configuration

• Nominal battery voltage approximately 51.2 V

• Integrated battery management system with protections

• Expandable external battery support in some configurations

• Backup power support with essential loads prioritised

AC Input (Grid)

• Nominal grid input voltage 230 Vac

• Nominal frequency 50 Hz

• Grid input range and support for grid charging and pass through

• Maximum grid input current limits dependant on configuration

AC Output (Backup)

• Maximum continuous output to essential loads 4000 W

• Peak surge output capability above continuous rating for short durations

• Nominal AC output voltage 230 Vac

• Nominal output frequency 50 Hz

Solar Charge Controller

• Built-in MPPT controller with multiple tracking points

• Adjustable solar charging parameters

• Suitable for PV arrays providing up to maximum input power rating

• Solar protection functions including reverse polarity protection

Protection and Safety

• Overcharge protection

• Over discharge protection

• Overcurrent protection

• Short circuit protection

• Over temperature protection

• Grid anti-islanding protection

• Battery polarity and fault protection

Connections and Monitoring

• Built-in connection ports for grid input, solar PV input, and AC loads

• Communication interfaces including WiFi or optional remote monitoring modules

• Support for Sunsynk Connect monitoring platform

Mechanical and Environmental

• Indoor installation recommended

• Operating temperature range generally -10 degrees to +55 degrees Celsius depending on model specification

• Storage temperature typical range -20 degrees to +60 degrees Celsius

• Protection rating IP20 for indoor use

Installation Requirements

• Installation and commissioning by a qualified electrician

• Cable connections for grid, PV, battery and load circuits

Warranty

• Typical warranty period up to 5 years subject to terms and conditions