Enphase IQ Gateway Fusion – Smart Solar Gateway with Built-in Sunlight Backup

The Enphase IQ Gateway Fusion is an advanced solar gateway designed to help homeowners make better use of solar energy. Combining IQ Gateway and IQ Relay functions in one compact unit, it simplifies the installation of compatible Enphase solar systems while providing a built-in auxiliary socket for using available solar power during daytime grid outages.

Available in India under model number IQ-SSG-1-WM-IN, the Enphase IQ Gateway Fusion is designed for 230 V, 50 Hz electrical systems and supports a maximum output power of 3,680 W to the grid or the auxiliary socket, subject to system configuration and operating conditions.

For homeowners and solar professionals looking for a smart, reliable solar solution, the IQ Gateway Fusion combines essential system functions, wireless connectivity, installer-friendly configuration and a practical daytime solar backup feature.

Key Features of Enphase IQ Gateway Fusion

1. Integrated IQ Gateway and IQ Relay Functions

The Enphase IQ Gateway Fusion combines IQ Gateway and IQ Relay functions in one compact unit. This integrated design helps simplify the installation of compatible Enphase solar systems by bringing essential components together.

Designed for compatible Enphase microinverter installations, it offers a convenient solution for system configuration and operation without requiring the gateway and relay functions to be housed in separate units.

2. Built-in Auxiliary Socket for Daytime Solar Backup

One of the most distinctive features of the Enphase IQ Gateway Fusion is its built-in auxiliary power socket, which is designed to use available solar energy during daytime grid outages.

In a compatible and correctly configured system, suitable electrical loads can receive power through the auxiliary socket when the grid supply is unavailable. This feature can be useful for powering selected appliances during daylight hours, helping homeowners make practical use of their solar generation.

The auxiliary socket supports up to 3,680 W of output power under specified conditions. Actual available power depends on sunlight, the connected solar panels, microinverter configuration and system operating conditions.

The daytime backup feature should not be confused with a complete whole-home backup system or battery energy storage system. The auxiliary socket does not provide stored energy for use at night.

3. Compatible with Enphase IQ8P and IQ8HC Microinverters

The Enphase IQ Gateway Fusion is designed for compatible Enphase solar microinverter configurations, including installations using Enphase IQ8P Microinverters and Enphase IQ8HC Microinverters.

According to the manufacturer’s preliminary datasheet, one IQ Gateway Fusion can operate the following configurations:

• Up to 7 solar panels with Enphase IQ8P microinverters.

• Up to 9 solar panels with Enphase IQ8HC microinverters.

These panel counts apply to the configurations specified in the datasheet and must be verified against the final system design and applicable Enphase installation requirements.

Enphase IQ8P and IQ8HC microinverters convert the DC electricity generated by individual solar panels into AC electricity. The IQ Gateway Fusion complements these microinverters by integrating gateway and relay functions and supporting the specified auxiliary solar power feature.

For a compatible Enphase solar installation, explore our dedicated product pages for the Enphase IQ8P Microinverter and Enphase IQ8HC Microinverter to compare the available microinverter options.

4. Convenient Configuration with the Enphase Installer App

The Enphase IQ Gateway Fusion is configured using the Enphase Installer App, supporting the setup and commissioning of compatible Enphase solar systems.

The Enphase app experience also supports system-status monitoring and visibility into individual solar panel energy production, helping users and installers understand how their solar installation is performing.

Monitoring features and the information available depend on the system configuration, installed equipment and supported app functionality.

5. Wi-Fi, Bluetooth and Power Line Communication

The IQ Gateway Fusion incorporates wireless and power line communication interfaces to support configuration and communication within a compatible Enphase solar installation.

Its connectivity features include:

• Wi-Fi 802.11 b/g/n.

• Bluetooth Low Energy (BLE) 4.2 at 2.4 GHz.

• Power Line Communication (PLC) at 110–120 kHz, Class B.

These interfaces support convenient installation and communication without making the device unnecessarily complicated for the installer.

6. Compact Design with IP-Rated Protection

Designed for wall mounting, the Enphase IQ Gateway Fusion has a compact form factor suitable for compatible indoor installations.

The device measures 273 × 116 × 93 mm and weighs approximately 1.14 kg, making it convenient to accommodate within a properly planned solar installation.

Its enclosure has an IP65 protection rating when the auxiliary socket hatch is closed and no plug is inserted. When the hatch is closed with a right-angled plug inserted into the auxiliary socket, the specified protection rating is IP55.

The operating temperature range is -20°C to 50°C, with a specified maximum installation altitude of 3,000 metres. The manufacturer’s datasheet specifies indoor installation.

7. Designed for Indian Electrical Specifications

The Enphase IQ Gateway Fusion model IQ-SSG-1-WM-IN is specified for Indian electrical applications using a nominal grid voltage of 230 V and a nominal frequency of 50 Hz.

The product datasheet lists a rated current of 16 A and a maximum output power of 3,680 W to the grid and 3,680 W to the auxiliary socket. These are separate output ratings and should not be interpreted as a guarantee of simultaneous maximum output from both.

The datasheet also lists applicable grid-interconnection, safety and electromagnetic compatibility standards for the specified model.

8. Five-Year Manufacturer-Specified Warranty

The Enphase IQ Gateway Fusion datasheet specifies a five-year warranty. Warranty eligibility, coverage and service conditions should be confirmed for the particular purchase and installation.

Enphase IQ Gateway Fusion – Technical Specifications

Specifications are based on the Enphase IQ Gateway Fusion preliminary datasheet, revision DSH-00858-1.0, dated December 17, 2025. Specifications, availability and warranty terms may change. Confirm the latest manufacturer documentation before purchase or installation.

Why Choose Enphase IQ Gateway Fusion from Enlead Energy?

Enlead Energy helps homeowners and solar professionals explore solar products for efficient, reliable energy solutions. For customers planning an Enphase microinverter-based solar installation, choosing a compatible gateway is an important part of the overall system design.

The Enphase IQ Gateway Fusion combines gateway and relay functions, wireless connectivity and a built-in auxiliary socket for its specified daytime solar backup application. Its compact design and compatibility with the stated IQ8P and IQ8HC configurations make it a product worth considering for suitable Enphase solar installations.

At Enlead Energy solar company, we can help you explore compatible Enphase solar products, understand the intended application and identify the appropriate equipment for your planned installation.

Explore our range of Enphase IQ8P Microinverters, Enphase IQ8HC Microinverters and Enphase solar products for your solar energy requirements.