Fronius Primo 6kW Single-Phase Grid-Tied Solar Inverter

The Fronius Primo 6.0-1 6kW Solar Inverter is a high-efficiency, single-phase grid-tied string inverter engineered for residential solar power systems. Featuring Fronius' SnapINverter mounting system, two independent maximum power point trackers, and integrated monitoring capabilities, the Primo 6.0-1 combines flexible solar array design with convenient system management.

Delivering up to 6,000VA of continuous AC output, this inverter supports compatible 208V and 240V single-phase electrical systems. Its transformerless design and wide DC operating range make it suitable for a variety of residential rooftop and ground-mounted solar installations.

With integrated Wi-Fi and Ethernet connectivity, an onboard datalogger, and Fronius Solar.web compatibility, homeowners and installers can monitor solar electricity production and review system performance remotely.

The Primo 6.0-1 also incorporates integrated AFCI protection, ground fault monitoring, anti-islanding functionality, and a built-in DC disconnect.

Important: This is a grid-tied solar string inverter, not a hybrid inverter. It does not provide battery charging or standalone backup power during a utility outage.

Key Features and Benefits

• 6kW Residential Solar Inverter: Provides up to 6,000VA continuous AC output at 208V or 240V.
• Single-Phase Grid-Tied Design: Designed for compatible residential utility-connected solar installations.
• Dual MPPT Technology: Two independent maximum power point trackers support flexible solar string configurations.
• Wide DC Operating Range: Supports an 80–600V DC operating range in the standard configuration.
• SnapINverter Mounting System: Hinged mounting architecture simplifies inverter installation and servicing.
• Integrated Arc Fault Protection: Built-in AFCI functionality provides additional electrical protection.
• Integrated DC Disconnect: Includes DC isolation functionality.
• Wi-Fi and Ethernet Connectivity: Enables local network connectivity and compatible remote monitoring.
• Fronius Solar.web Monitoring: Access solar production information through Fronius' monitoring platform.
• SunSpec Modbus Support: Compatible with supported Modbus TCP and RS485 communication systems.
• High Conversion Efficiency: Maximum efficiency of 96.9% and CEC efficiency of 96.0%.
• NEMA 4X Enclosure: Suitable for compatible indoor and outdoor installations.
• 10-Year Manufacturer Warranty: Published warranty term with optional extensions, subject to manufacturer conditions.

Dual MPPT Technology for Flexible Solar Array Design

The Fronius Primo 6.0-1 features two independent maximum power point trackers that allow installers to configure compatible PV strings across different roof orientations or operating conditions.

Each MPPT supports up to 18A of usable DC input current, with a combined maximum usable input current of 36A.

The inverter's 240–480V MPPT operating range supports high-voltage solar strings when properly designed within the manufacturer's electrical limits.

DC Input Highlights

• Two independent MPPTs.
• Recommended PV array capacity of 4.8–9.3kW DC.
• Standard DC operating range of 80–600V.
• MPPT voltage range of 240–480V.
• 80V DC startup voltage.
• 18A maximum usable current per MPPT.
• 36A combined maximum usable input current.

Fronius SnapINverter Mounting System

The Primo 6.0-1 incorporates Fronius' SnapINverter mounting architecture, featuring a hinged inverter design that supports convenient installation and service access.

The inverter uses a replaceable circuit board concept that allows qualified service personnel to perform certain repairs without replacing the entire inverter.

Its compact housing measures approximately 16.9 inches wide, 24.7 inches tall, and 8.1 inches deep, with a weight of 47.29 lbs.

Smart Solar Monitoring with Fronius Solar.web

The Fronius Primo includes an integrated datalogger, webserver, Wi-Fi, and Ethernet connectivity for system monitoring and communication.

Through the Fronius Solar.web platform, homeowners and installers can review solar production and monitor inverter performance using compatible online and mobile interfaces.

Communication and Monitoring Features

• Integrated Wi-Fi connectivity.
• Ethernet LAN connection.
• Fronius Solar.web compatibility.
• Integrated datalogger and webserver.
• SunSpec Modbus TCP communication.
• SunSpec Modbus RTU via RS485.
• USB interface for datalogging and inverter updates.
• Fronius Solar Net interfaces.
• Digital inputs and outputs for supported control functions.

Integrated Electrical Protection

The Fronius Primo 6.0-1 incorporates manufacturer-specified protective functions for grid-connected photovoltaic applications.

• Integrated arc fault circuit interruption (AFCI).
• Anti-islanding protection.
• DC reverse polarity protection.
• Ground fault protection with isolation monitoring.
• Overtemperature protection through power derating and active cooling.
• Integrated DC disconnect.
• Manufacturer-listed rapid shutdown compliance.

Complete rapid shutdown compliance depends on the system configuration and applicable electrical code requirements.

Applications

• Residential grid-tied solar PV systems.
• Home electricity bill offset.
• Rooftop solar panel installations.
• Compatible ground-mounted solar arrays.
• Solar systems with two independent PV string orientations.
• Residential solar system upgrades.

Product Specifications

Frequently Asked Questions