The Fronius Primo 3.8-1 208-240VAC (Part Number: 4,210,064,800) is a compact transformerless single-phase string inverter ideal for smaller residential solar installations. Delivers 3.8 kW of AC output power.

Key Features:

• SnapINverter hinge mounting system
• Dual MPP trackers
• Wide input voltage range: 80V–600V
• Wi-Fi® and Ethernet LAN connectivity
• Free monitoring via Fronius Solar.web
• NEMA 4X protection class
• AFCI, Rapid Shutdown compliant (NEC 2017)
• Made in Austria

Technical Specifications:

• Part Number: 4,210,064,800
• AC Output Power: 3,800 VA (208V/240V)
• AC Output Voltage: 208/240V single-phase
• Frequency: 60 Hz
• Max. Input Voltage: 600V DC
• MPP Voltage Range: 200–480V
• Number of MPP Trackers: 2
• Max. Usable Input Current (MPPT1/MPPT2): 18A/18A
• Max. Efficiency: 96.7%
• CEC Efficiency: 95.0%
• Dimensions: 16.9 x 24.7 x 8.1 in
• Weight: 47.29 lbs
• Protection Class: NEMA 4X
• Operating Temperature: -40°F to +131°F (-40°C to +55°C)

Warranty: 10 years standard; extensions up to 15 and 20 years available.

Datasheet: Fronius Primo Datasheet