Victron Sun Inverter: Solar PWM Setup
Updated 6 September 2026 · By SolarNevs Research Desk, Dealer surveys + verified sources · 1 source · Method ↗
Key Takeaways
- The Sun Inverter combines a 230V pure sine wave inverter with an integrated solar PWM charge controller.
- Continuous off-grid AC capacity: Continuous power at 25°C 200 W.
- Inductive motor surge headroom: Peak power 400 W.
- Grid-quality AC waveform: Output AC voltage 230 Vac +/- 3 % and Output AC frequency (adjustable) 50 Hz or 60 Hz +/- 01 %.
- Input DC battery span: DC Input voltage range 9.2 - 17 Vdc 18.4 - 34.0 Vdc.
- Low battery protection cutoff: Low battery voltage shut down (adjustable) 9.3 Vdc 18.6 Vdc.
- Full charge restoration threshold across operating temperature: Battery charged detect voltage (adjustable) 14.0 Vdc 28.0 Vdc.
- High conversion efficiency: Maximum efficiency 87 % 88 %.
- Integrated solar regulation: Technology Pulse Width Modulation (PWM).
- Solar array voltage tolerance: Maximum PV array voltage 25 Vdc 50 Vdc.
- Solar array current rating: Maximum PV array current 15 A 10 A.
- Broad thermal operating limits: Operating temperature range -40 to +60 °C (fan assisted cooling) (derate 1.25 % per °C above 40 °C).
- Chassis construction: Protection category IP 21.
Integrated Inverter & Solar PWM Architecture
The Sun Inverter simplifies small off-grid solar setups by housing a pure sine wave inverter and a PWM solar charge controller in a single compact steel enclosure. This design minimizes cabling complexity and eliminates external DC distribution boxes for rural lighting and security stations.
The Victron Sun Inverter combines an integrated pure sine inverter (200W) and PWM solar controller (15A/10A) delivering AC output of 230 Vac +/- 3% (50/60 Hz) and 400W peak power:
- Solar PV Input: 25V / 50V Max Array, 15A / 10A Max Array, PWM Charge Control, Battery Connect 1st.
- 230V Inverter Out: 200W Continuous, 400W Peak Surge, 230V Pure Sine, Low Cut: 9.3V.
- Communications: Bluetooth BLE, VE.Direct, VictronConnect, IP21 Steel.
Installation Rules & Connection Sequence
- Battery Connection First: Always connect the battery bank to the DC terminals across DC Input voltage range 9.2 - 17 Vdc 18.4 - 34.0 Vdc before connecting solar panels.
- Solar Panel Connection: Connect 36-cell (12V) or 72-cell (24V) solar modules keeping array voltages within Maximum PV array voltage 25 Vdc 50 Vdc and current within Maximum PV array current 15 A 10 A.
- Clean Power Output: Delivers pure sine wave AC power across Output AC voltage 230 Vac +/- 3 % and Output AC frequency (adjustable) 50 Hz or 60 Hz +/- 01 %.
Bluetooth Telemetry & Battery Protection
The Sun Inverter integrates modern wireless configuration with automated battery safeguarding:
- VictronConnect Integration: Wirelessly configure inverter parameters, monitor live solar charging current, and adjust cutoffs via Bluetooth or VE.Direct.
- Continuous & Surge Capacity: Supplies 230V loads at Continuous power at 25°C 200 W with surge capacity up to Peak power 400 W.
- Battery Protection: Automatically isolates AC output at **Low battery voltage shut down (adjustable) 9.3 Vdc 18.6 Vdc and resumes charging across operating temperature when reaching **Battery charged detect voltage (adjustable) 14.0 Vdc 28.0 Vdc.
- Solar PWM Charging: Employs Technology Pulse Width Modulation (PWM) with Maximum efficiency 87 % 88 %.
- Thermal Capabilities: Operates reliably across Operating temperature range -40 to +60 °C (fan assisted cooling) (derate 1.25 % per °C above 40 °C) in an enclosure of Protection category IP 21.
Technical Specifications & Parameter Summary
Parameter | Engineering Rating | Design Significance |
|---|---|---|
Continuous AC Power | Continuous power at 25°C 200 W | Continuous pure sine wave output for small domestic loads |
Peak Surge Rating | Peak power 400 W | Starts small motor loads and lighting ballasts |
Output AC Voltage | Output AC voltage 230 Vac +/- 3 % | Stable pure sine wave AC voltage |
Output AC Frequency | Output AC frequency (adjustable) 50 Hz or 60 Hz +/- 01 % | Quartz-accurate frequency output |
DC Input Operating Window | DC Input voltage range 9.2 - 17 Vdc 18.4 - 34.0 Vdc | Compatible with 12V and 24V lead-acid and lithium batteries |
Low Voltage Cutoff | Low battery voltage shut down (adjustable) 9.3 Vdc 18.6 Vdc | Prevents damaging battery over-discharge |
Charged Detect Level | Battery charged detect voltage (adjustable) 14.0 Vdc 28.0 Vdc | Full charge restoration threshold |
Conversion Efficiency | Maximum efficiency 87 % 88 % | Efficient DC-to-AC conversion with low standby losses |
Solar Charger Topology | Technology Pulse Width Modulation (PWM) | Simple, reliable pulse-width modulated solar charging |
Solar Array Voltage Limit | Maximum PV array voltage 25 Vdc 50 Vdc | Direct connection for standard 36-cell and 72-cell PV panels |
Solar Array Current Limit | Maximum PV array current 15 A 10 A | High-current solar charging capacity |
Thermal Operating Span | Operating temperature range -40 to +60 °C (fan assisted cooling) (derate 1.25 % per °C above 40 °C) | Wide operating envelope for rural cabin power boards |
Ingress Category | Protection category IP 21 | Indoor steel chassis with protective plastic cover |
References
- Victron Energy: Sun Inverter Manual — accessed 31 August 2026
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