IQ System Controller 3-INT

The Enphase IQ System Controller 3 INT (required only for backup power) connects the home to the utility grid, the IQ Battery 5P with FlexPhase energy storage system, and the solar array. It provides automatic transfer switch (ATS) functionality by automatically detecting and seamlessly switching the home’s energy system from grid power to backup power in the event of a power outage.

It combines grid connection equipment and a communication gateway into a single enclosure and streamlines the path to off-grid capability for solar and storage installations by offering a unified, pre-wired solution for residential and small commercial applications.

• A consolidated unit for PV, DB, and automatic transfer switch (ATS)
• Integrated IQ Gateway card, generation CT, consumption CT, and relay functionality via IQ Relays
• Built-in cellular modem with a five-year prepaid data plan and a system shutdown switch for safety
• Rugged enclosure with IP55 rating
• 10-year limited warranty
• Monitors secure network connection
• Automatically detects power outages
• Provides a nearly seamless transition to backup power
• Enables the solar start function for the IQ Battery 5P with FlexPhase
• Uses wired communication for a fast and stable connection
• Supports both single-phase and three-phase configurations for solar and grid
• Supports cable entry from the bottom, rear, left, and right
• Supports main circuit breakers up to 80 A
• Offers homeowners remote monitoring and control via the Enphase App