The FoxESS EPS-BOX-PRO is a three-phase emergency power supply (EPS) switching module designed for use with compatible FoxESS hybrid inverters. The device enables automatic switching between grid power and emergency backup mode, ensuring a continuous power supply during grid outages—within the operational limits of the connected inverter and energy storage system.

This module serves as a practical solution for photovoltaic installations in both residential and commercial buildings. An integrated RS-485 communication interface allows for connection with an energy meter and seamless integration into a compatible FoxESS system.

Featuring a robust, IP65-rated enclosure, wall-mounting capability, and natural convection cooling, the unit is easy to install and operates silently.

Key advantages:

• Three-phase emergency power supply support.
• Automatic switching between on-grid and off-grid modes.
• Compatible with H3, AIO H3, and P3-S series inverters.
• Maximum grid input current: 63 A per phase.
• Maximum output current to loads: 63 A per phase.
• RS-485 communication interface for energy meter integration.
• Durable, IP65-rated enclosure.
• Passive cooling (fanless).
• Wall-mountable design.
• Suitable for photovoltaic installations equipped with FoxESS energy storage systems.