solar-inverter
Fronius SnapINverter Primo
The Fronius SnapINverter Primo is a single-phase, transformerless inverter designed for residential solar systems, with power categories from 3.8 kW to 15.0 kW. It features SnapINverter mounting for quick installation, high reliability, and field serviceability. The inverter supports Fronius SuperFlex Design for system flexibility, Dynamic Peak Manager for shade mitigation, multiple MPP trackers, and integrated data communication via LAN/WLAN. It is compatible with open interfaces for third-party integration but does not support battery backup or power optimizers. Supported standards include UL 1741 and IEC 62109. The device is suitable for complex roof configurations and shaded conditions, providing maximum energy yield and safety (fronius-snapinverter-primo, documents 1, 3, 5, 6, 10, 11, 12, 15).
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Pros and cons
Pros
Strengths called out by generated product content.
- Fronius Primo inverters are considered solid and reliable units.
- The Primo series supports high DC voltage applications up to 1000V.
- Fronius inverters have good integration with solar web monitoring and APIs.
- The Primo inverter series includes features like multiple MPPT trackers and SuperFlex Design.
- Some users report positive experiences with initial setup and performance.
Cons
Tradeoffs and constraints to review before choosing.
- There have been reports of unresolved issues related to grid connection and AC wiring.
- Some users experienced inverter failures, possibly due to wiring or system configuration issues.
- The Primo inverter's wireless network visibility can be problematic or require troubleshooting.
- The Primo series may have limited backup power capabilities (e.g., 700W blackout outlet).
- Installation and commissioning can be complicated, with potential for connection errors.
Notes
Context that does not fit neatly as a pro or con.
- User opinions vary on whether to choose Primo or newer Gen24 models, often based on future battery plans.
- Some users prefer Fronius for its monitoring and API openness, but acknowledge monitoring can be outdated.
- Noise levels from the inverter are generally considered acceptable, with humming during the day.
- Inverter appearance and integration are appreciated, though some find disconnects and external components unattractive.
Electrical Specifications
Power Ratings
- Max Input Power
- 15 kW2
- Rated Power
- 15 kW
- Max Apparent Output Power
- 3,800 VA
Electrical Input
- Start Up Voltage
- 803
Performance
Electrical Output
Physical Characteristics
- Weight
- 20 kg
- IP Rating
- IP65
Connectivity
- Communication Interfaces
- Energy management, Ethernet LAN, External input, Fronius Solar.web, Modbus TCP, RS422, RS485 Modbus RTU, Signalling output, SunSpec, USB, Wi-Fi
Efficiency
- Efficiency Max
- 97 %2
- Mppt Efficiency
- 99.9 %
Features
- Features
- Design flexibility, Easy installation, Field-serviceability, High reliability, Maximum energy yield, Maximum safety, Pro-active service solutions, Shade mitigation, SnapIN mounting system, SnapINverter technology1
Protection Features
- DC Reverse Polarity Protection
- Yes
- Short Circuit Protection
- Yes
- Output Over Current Protection
- Yes
- Output Over Voltage Protection
- Yes
- Insulation Resistance Monitoring
- Yes
- Residual Current Detection
- Yes
- Surge Protection
- Yes
- Grid Monitoring
- Yes
- Islanding Protection
- Yes
- Temperature Protection
- Yes
Physical Dimensions
General
- Warranty
- 12 years