Fronius Primo 8.2-1 Inverter | 8.2kW Grid-Tie | Dual MPPT
The transformerless Fronius Primo 8.2-1 is a compact single-phase grid-tied inverter built for larger residential PV systems. With dual MPPTs, NEMA 4X protection, and integrated protective functions (including AFCI), it’s designed for reliable indoor/outdoor performance.
Key Specifications
• Model – Fronius Primo 8.2-1
• Inverter Type – Single-phase, transformerless grid-tied inverter
• Number of MPPT – 2
• Max. Permitted PV Power – 12.3 kW
• Max. Input Voltage – 1,000 V
• Operating Voltage Range – 80–1,000 V
• Nominal Input Voltage – 420 V
• MPP Voltage Range – 270–800 V
• Max. Usable Input Current (MPPT1 / MPPT2) – 18 A / 18 A
• Total Max. DC Current – 36 A
• Max. Admissible Input Current (MPPT1 / MPPT2) – 27 A
• Grid Connection – 208 / 240 V
• Nominal Grid Frequency – 60 Hz
• Max. Output Power – 8,200 W @ 240 V / 7,900 W @ 208 V
• Max. Continuous Output Current – 34.2 A @ 240 V / 38.0 A @ 208 V
• Recommended OCPD / AC Breaker – 45 A @ 240 V / 50 A @ 208 V
• Max. Output Fault Current / Duration – 584 A peak / 154 ms
• Max. Efficiency (Lite version) – 97.9%
• CEC Efficiency (Lite version, 240 V) – 97.0%
• Total Harmonic Distortion – <5.0%
• Power Factor (cos φac) – 0.85–1 ind/cap
• Cooling – Controlled forced ventilation, variable speed fan
• Degree of Protection – NEMA 4X
• Night Time Consumption – <1 W
• Installation – Indoor and outdoor installation
• Ambient Operating Temperature Range – −40 to 131°F (−40 to 55°C)
• Permitted Humidity – 0–100%
• DC Conductor Size – AWG 14–AWG 6
• AC Connection Terminals – Screw terminals 12–6 AWG
• Dimensions (W × H × D) – 16.9 × 24.7 × 8.1 in (42.9 × 62.7 × 20.6 cm)
• Weight – 47.4 lb (21.5 kg)
• Protective Devices – AFCI: Yes; Ground Fault Protection with Isolation Monitor Interruptor: Yes; DC disconnect: Yes; DC reverse polarity protection: Yes
• Revenue Grade Metering – Optional (ANSI C12.1 accuracy)
• Certificates and compliance with standards – UL 1741-2010 Second Edition (incl. UL1741 Supplement SA 2016-09) (for California Rule 21 and Hawaiian Electric Code Rule 14(H)), UL1998 (for functions: AFCI, RCMU and isolation monitoring), IEEE 1547-2003, IEEE 1547.1-2003, ANSI/IEEE C62.41, FCC Part 15 A & B, NEC 2017 Article 690, C22.2 No. 107.1-16, UL1699B Issue 2-2018, CSA TIL M-07 Issue 1-2013
