Overview
The ELIOS TPH series is a three-phase grid-connected solar inverter designed for medium transformer-less systems. It offers high reliability, electrical performance, compact size, and cost-efficiency. The inverter is housed in a waterproof IP65 chassis, suitable for grid connection, and features fan cooling and transformer-less technology to optimize efficiency up to 98%.

Principle of Operation
The inverter interfaces photovoltaic (PV) modules with the grid, ensuring operation at the maximum power point (MPP) and injecting a sinusoidal current into the grid. It detects islanding situations to protect equipment and personnel. The inverter transforms DC voltage from solar panels into stabilized AC voltage for local consumption and grid feed-in.

Maximum Power Point Tracker (MPPT)
The ELIOS TPH series includes two independent MPPT boosters to manage solar panel strings with different inclinations, ensuring operation at the maximum power point for optimal efficiency.

Control Panel
The control panel includes a Power Management LCD Display, LED indicators, and keys for user operation. LED indicators signal various statuses, and the backlit LCD provides monitoring information.

Interfaces
The inverter includes RS232 and RS485 ports, with optional SNMP, USB, and dry contact interfaces for monitoring and integration. It supports various operating systems for software compatibility.

Electrical Connections
The inverter features an LCD display, input Vdc switch, quick PV array connections, output Vac terminals, and communication interfaces.

Standards
The inverter complies with safety and EMC directives, including EN 62040-1-1, EN50178, EN61000-6-1, EN61000-6-3, and EN61000-3-3.