Fronius Primo 7.6kW Single-Phase Grid-Tie Solar Inverter – 4210061800

The Fronius Primo Lite 3.8kW is a transformerless, single-phase grid-connected solar inverter designed for residential photovoltaic installations. Part of the Fronius Primo Lite SnapINverter family, this inverter combines reliable DC-to-AC power conversion, dual maximum power point tracking, integrated electrical protection, and a convenient mounting system.

Engineered for residential solar energy applications, the Fronius Primo Lite features two independent MPPT trackers, a wide DC operating voltage range, 208V/240V AC output compatibility, and up to 96.7% maximum efficiency. Its transformerless architecture and variable-speed cooling system support efficient operation across a variety of environmental conditions.

The inverter incorporates Fronius SnapINverter technology, allowing convenient mounting and service access. Its NEMA 4X enclosure supports indoor and outdoor installations, while integrated arc-fault protection, ground-fault monitoring, DC disconnect functionality, and anti-islanding protection provide important electrical safety features..

Key Technology

• 3.8kW Single-Phase AC Output
  Provides up to 3,800VA of AC output power for compatible residential grid-connected photovoltaic installations.

• Transformerless Inverter Technology
  Uses an efficient transformerless architecture to convert photovoltaic DC electricity into grid-compatible AC power.

• Dual MPPT Trackers
  Features two independent maximum power point trackers, supporting flexible photovoltaic array configurations.

• 96.7% Maximum Efficiency
  Designed for efficient conversion of photovoltaic DC electricity into usable AC electricity.

• Fronius SnapINverter Mounting System
  Features a hinged mounting design intended to simplify installation, electrical connections, and servicing.

• Wide DC Operating Range
  Supports a broad photovoltaic input voltage range for flexible solar array design.

• 208V/240V AC Compatibility
  Designed for compatible single-phase grid connections.

• Integrated Arc-Fault Circuit Interruption
  Includes AFCI functionality to support photovoltaic DC arc-fault protection.

• Rapid Shutdown Compliance
  Identified by the manufacturer as rapid-shutdown compliant, subject to applicable system configuration and installation requirements.

• Integrated Ground-Fault Protection
  Includes ground-fault protection with isolation monitoring.

• Integrated DC Disconnect
  Provides DC disconnection functionality as part of the inverter's standard protective features.

• Internal Anti-Islanding Protection
  Designed to detect specified abnormal grid conditions and disconnect in accordance with applicable requirements.

• NEMA 4X Enclosure
  Supports installation in suitable indoor and outdoor environments.

• Variable-Speed Fan Cooling
  Uses active cooling to help regulate operating temperature and manage inverter performance.

• USB Firmware Update Interface
  Includes a USB connection for supported inverter software updates.

• Fronius Solar Net Interface
  Provides RS422 communication connections for compatible Fronius Solar Net equipment.

• Service-Friendly Component Design
  Features Fronius' PC board replacement concept to support maintenance and servicing.

• Manufacturer Warranty Coverage
  Includes a 10-year warranty, with optional extensions subject to Fronius warranty conditions.

Best Uses

• Residential Rooftop Solar Systems
  Suitable for homes requiring efficient grid-connected photovoltaic power conversion.

• Single-Phase Grid-Tied Installations
  Designed for compatible residential electrical services using supported AC configurations.

• Solar Arrays with Different Orientations
  Dual MPPT trackers allow separately configured photovoltaic strings to operate at their respective maximum power points.

• Outdoor Solar Inverter Installations
  The NEMA 4X enclosure supports appropriately located outdoor installations.

• Residential Solar System Upgrades
  Provides a solution for compatible grid-tied photovoltaic systems requiring modern inverter protection and dual MPPT capability.

• Grid-Connected Renewable Energy Projects
  Converts DC power from photovoltaic modules into AC electricity for use with an appropriately configured electrical grid connection.

Product Specifications

Efficient Residential Solar Power Conversion with Fronius Primo Lite Technology

The Fronius Primo Lite 3.8kW Single-Phase Solar Inverter 4210061800 combines efficient transformerless DC-to-AC conversion, dual MPPT tracking, integrated electrical protection, SnapINverter mounting technology, and a durable NEMA 4X enclosure. Designed for compatible residential grid-tied photovoltaic systems, it offers flexible installation and dependable solar power conversion backed by Fronius manufacturer warranty coverage.

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.