Leo PDH30 Three Phase
Inverter for Electric Pump
from 3 HP to 25 HP

Leo PDH30 - Three-phase Inverter for Electric Pump

The Leo PDH30 three-phase inverter represents a highly efficient and technologically advanced solution for the management of water systems with variable speed pumps. Specifically designed to optimize energy consumption, the PDH30 model uses VFD (Variable Frequency Driver) technology to dynamically adapt the pump speed based on the real water demand.

In a system, the maximum flow rate request occurs only sporadically, while most of the time the needs are lower and not simultaneous: thanks to the frequency variation, the Leo PDH30 inverter allows to significantly reduce consumption and energy costs .

Ideal for professional use, it is compatible with both induction and permanent magnet motors and can be installed directly on the pump terminal box thanks to the IP54 self-ventilated design . Equipped with a simple user interface, display and automatic protection functions, the Leo PDH30 is a safe choice for the intelligent management of pumping systems.

Works with pressure translator (sold separately)

Available models

Selectable from drop-down menu:

• PDH30-4T2R2-E - code 1080322
• PDH30-4T5R5-E - code 1080355
• PDH30-4T011-E - code 1080311
• PDH30-4T18R5-E - code 1080318

Functional specifications

Inverter for precise control on pumps

Leo PDH30 is available in different power configurations, from 2.2 to 18.5 kW , all with three-phase power supply and output 3x400V at 50Hz. The inverter is designed for the precise control of pumps with induction or permanent magnet motors, ensuring PID regulation based on signals from a 4-20 mA pressure transducer or external 0-10V signals . Cooling is ensured by a dedicated fan, while the IP54 protection degree allows safe installation even in demanding environments. The user interface consists of 4 keys and a 4-character display , which allows the simultaneous display of the control and operating pressure.

Variable speed operation

In a typical water system, the maximum flow rate request occurs rarely, while daily needs involve variable and non-simultaneous water withdrawals. By using an inverter such as Leo PDH30, the pump runs at reduced speed most of the time, significantly reducing energy consumption. This continuous speed regulation improves the overall efficiency of the system and allows significant savings in operating costs, making the investment in the inverter largely justified in the medium to long term.

Ideal for pressurization systems and pumping systems

Leo PDH30 is ideal for complex pressurization and pumping systems. It offers a simple and intuitive user interface, simplifying commissioning operations. The main parameters required are the desired pressure and the maximum pump current. In the event of anomalies, the system cuts off the power supply to the pump to protect the system, starting automatic or programmable recovery attempts. Standard RS485 communication and the integrated multi-pump function also make this inverter suitable for integration into centralized control systems.

Characteristics

• Power from 2.2 to 18.5 kW
• Power supply and output 400V
• PID regulation with reference signal from 4-20 mA transducer