Fronius – Primo 3.8-1 208-240V Single-Phase Grid-Tie Inverter – Full

Brand: Fronius
SKU: 4.210.064.802

The Fronius Primo 3.8-1 single-phase grid-tie inverter offers reliable solar energy conversion for residential and small commercial systems. Designed for 208–240V installations, it delivers high efficiency, easy system monitoring, and proven performance for consistent renewable power generation.

$1,909.99

or $88.10/mo for 24 mo at 9.96% APR with Affirm.
Fronius - Primo 3.8-1 208-240V Single-Phase Grid-Tie Inverter – Full | Circuit Solar
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Product Overview

The Fronius Primo 3.8-1 208-240V Single-Phase Grid-Tie Inverter is a high-performance solar inverter designed for residential and small commercial photovoltaic systems. Engineered for efficiency and reliability, this grid-tie inverter seamlessly converts DC power generated by solar panels into AC power suitable for the utility grid. Its advanced design supports stable power output, easy installation, and flexible system integration, making it ideal for various rooftop solar energy applications.

Key Features:

  • Rated power output of 3.8 kW for single-phase 208–240V grid connection
  • Maximum efficiency up to 97.8% for optimized energy conversion
  • Integrated Wi-Fi and monitoring for real-time performance tracking
  • Designed with dual independent MPPT for flexible string configuration
  • Natural convection cooling system for quiet and efficient operation
  • NEMA 4X outdoor-rated enclosure for reliable protection in varied climates
  • Compliant with UL 1741 SA and IEEE 1547 grid interconnection standards
  • Compatible with Fronius Solar.web for remote data management and system analysis

The Fronius Primo 3.8-1 208-240V Single-Phase Grid-Tie Inverter is well-suited for grid-connected solar power systems where dependable energy conversion and monitoring are essential. It offers reliable compatibility with a wide range of photovoltaic modules and supports efficient communication for ongoing performance optimization. This inverter is built for solar professionals and homeowners who seek long-term stability and precise control within their on-grid solar installations.

Product Specifications
Weight: 48 lbs
Dimensions: 31 × 22 × 12 in
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