Fronius Primo 12.5kW Grid-Tied String Inverter 240/208VAC 4,210,077,800
MPN No: 4,210,077,800
Expected ship date Aug 04 - 11
In Stock
4,046.60
-15%
$3,414.00
Sale
Fronius Primo 12.5kW Grid-Tied String Inverter 240/208VAC 4,210,077,800
Fronius Primo 12.5kW Grid-Tied String Inverter 240/208VAC 4,210,077,800
Regular price
$4,046.60
-15%
$3,414
16% OFF
LESS THAN 50
Sale
Fronius Primo 12.5kW Grid-Tied String Inverter 240/208VAC 4,210,077,800
Fronius Primo 12.5kW Grid-Tied String Inverter 240/208VAC 4,210,077,800
Available
MPN No: 4,210,077,800
Regular price
$4,046.60
-15%
$3,414
Expected ship date Aug 04 - 11
Ships from U.S. Warehouse
Trusted by Thousands
Expert U.S. Support
We offer multiple secure payment options for your convenience
We offer multiple secure payment options for your convenience
Data Sheet
Regular price
$4,046.60
-15%
$3,414
Fronius Primo 12.5kW Grid-Tied String Inverter 240/208VAC 4,210,077,800
MPN No:
4,210,077,800
Expected ship date Aug 04 - 11
Sale
Fronius Primo 12.5kW Grid-Tied String Inverter 240/208VAC 4,210,077,800
The Fronius Primo 12.5-1 is a transformerless single-phase grid-tied string inverter designed for residential and light commercial solar applications requiring reliable 208/240VAC power conversion. With dual MPPT tracking, a wide input voltage range, integrated Wi-Fi and Ethernet communication, and Fronius Solar.web monitoring, the Primo 12.5-1 delivers flexible system design and dependable long-term performance.
Built with the Fronius SnapINverter mounting system, the Primo 12.5-1 is designed for fast installation, secure service access, and simplified maintenance. It also includes integrated AFCI protection, DC disconnect, Smart Grid Ready functionality, and compatibility with Fronius rapid shutdown solutions for NEC-compliant solar installations.
Key Technology
-
12.5kW Single-Phase Output
Provides strong 208/240VAC output for larger residential and light commercial PV systems. -
Dual MPPT Design
Allows flexible string design across multiple roof orientations. -
SnapINverter Mounting System
Simplifies installation, servicing, and inverter replacement. -
Integrated Wi-Fi & Ethernet
Supports remote monitoring through Fronius Solar.web. -
AFCI Protection
Integrated arc fault protection improves system safety. -
Smart Grid Ready
Designed for modern grid-interactive PV applications.
Best Uses
-
Residential Solar Systems
Ideal for larger home solar installations. -
Light Commercial Rooftops
Provides reliable string inverter performance for small business systems. -
Multi-Orientation Arrays
Dual MPPTs support flexible roof layouts. -
Monitored PV Systems
Works with Fronius Solar.web for online and mobile system visibility.
Warranty
- Product Type: Grid-Tied String Inverter
- Maximum Output Power: 12,500W
- Maximum Efficiency: 96.7%
- Protection Rating: NEMA 4X
Product Specifications
| Specification | Details |
|---|---|
| Manufacturer | Fronius |
| Part Number | 4,210,077,800 |
| Model | Primo 12.5-1 |
| Product Type | Single-Phase Grid-Tied String Inverter |
| Recommended PV Power | 10.0 - 15.0 kW |
| Maximum Output Power | 12,500W at 208/240VAC |
| Grid Connection | 208 / 240V |
| Frequency | 60Hz |
| Maximum Continuous Output Current | 52.1A at 240V / 60.1A at 208V |
| Recommended AC Breaker | 70A at 240V / 80A at 208V |
| Maximum Input Voltage | 600V DC |
| Operating Voltage Range | 80V - 600V DC |
| MPP Voltage Range | 260V - 480V DC |
| Number of MPPTs | 2 |
| Maximum Usable Input Current | 33A MPPT1 / 18A MPPT2 |
| Total Maximum DC Current | 51A |
| Maximum Efficiency | 96.7% |
| CEC Efficiency | 96.5% |
| Topology | Transformerless |
| Cooling | Variable Speed Fan |
| Protection Rating | NEMA 4X |
| Installation | Indoor or Outdoor |
| Operating Temperature | -40°F to 140°F (-40°C to 60°C) |
| Dimensions | 20.1 × 28.5 × 8.9 in |
| Weight | 82.5 lbs |
| Communication | Wi-Fi, Ethernet, Serial, USB, RS422 |
| Monitoring | Fronius Solar.web, SunSpec Modbus TCP, JSON, SunSpec Modbus RTU |
| Protective Devices | AFCI, Ground Fault Protection, DC Disconnect, DC Reverse Polarity Protection |
| Certifications | UL1741, UL1998, IEEE1547, FCC Part 15, NEC Article 690, CSA C22.2 No.107.1-01, UL1699B |
About Fronius:
Fronius is a global manufacturer of advanced solar inverters, monitoring solutions, and renewable energy technologies. Known for reliable engineering, intelligent system monitoring, and installer-friendly designs, Fronius products are built for high-performance photovoltaic applications.
Reliable Single-Phase Solar Power Conversion
The Fronius Primo 12.5-1 combines dual MPPT flexibility, integrated monitoring, SnapINverter installation, and advanced protection features into a dependable inverter platform for modern residential and light commercial solar systems.
Why Buy From US Solar Supplier
US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.
Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.
Need Assistance?
Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We're here to help with product details, compatibility questions, or purchasing support.
