SUN Inverter Manual

Proven reliability

The inverter uses a full bridge with toroidal transformer topology that has proven its reliability over many years. It is short circuit proof and protected against overheating, whether due to overload or high ambient temperature.

High startup power

To start loads such as: power converters for LED lamps, filament lamps or electric tools.

AC output socket

The inverter has an IEC-320 output socket and ships together with an IEC-320 male plug.

ECO mode

ECO mode reduces the inverter power consumption by approximately 85% by going into standby operation when there are no loads connected to the inverter. When the inverter has been switched to ECO mode, it will enter standby operation when the load is less than a preset value. While in standby operation, the inverter will check every few seconds if the load has increased again. If the load has increased, the inverter will leave standby operation and resumes regular inverter operation. The sensitivity of the ECO mode is configurable.

Fully configurable

To transfer the load to another AC source: The automatic transfer switch

For inverters we recommend our Filax2 automatic transfer switch. The Filax2 features a very short switchover time (less than 20 milliseconds) so that computers and other electronic equipment will continue to operate without disruption. Alternatively use an inverter/charger with built-in transfer switch.

The SUN inverter is equipped with a PWM solar regulator. Solar panels can be directly connected to the SUN inverter. Solar power will be used to charge the batteries or help to provide energy to the inverter AC load.

The solar charger is fully configurable, for more information see the CHARGE mode chapter.

The inverter is equipped with a 3-way switch that performs the following functions:

The inverter indicates basic operational information and alarms via its LEDs:

Additional parameters can be monitored via VictronConnect:

For the full list of all LED indications and monitoring parameters see the Operation chapter.

The VictronConnect app is used to monitor, control and configure the inverter. The app can be installed on a phone, tablet or computer. The app is available for Android, iOS, Windows and macOS. The app either communicates via Bluetooth or via USB interfaced to the VE.Direct port.

For more information about the app and to download the app see the VictronConnect product page.

The inverter has built-in Bluetooth.

Bluetooth (but also a VE.Direct connection) can be used to communicate with the VictronConnect app.

Bluetooth can also be used to communicate with the VE.Smart Networking and with the Smart Battery Sense to share battery voltage and temperature data to all devices connected to the VE.Smart Networking.

The inverter is equipped with a VE.Direct port. This port can be used to connect the inverter to:

The inverter can be remotely turned on or off in the following ways:

For more information see the Remote connector chapter.

For temperature compensated charging or low temperature detection, a wired temperature sensor, the Temperature sensor Quattro, MultiPlus and GX Device or a wireless temperature sensor, the Smart Battery Sense can be used. These are optional extras and are not included with the inverter.

For more information see the Battery temperature sensor chapter.

The remote connector can be used by a lithium Battery Management System (BMS) to control the SUN Inverter, to stop the inverter when the batteries are too far discharged or to stop the solar charger when the batteries are overcharged or when the battery temperature is below 5°C.