PPU 300 Hybrid (battery) controller

Customisable controller for hybrid power plants with batteries

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PPM 300 (Hybrid)
PPU 300 Rack Front
PPU 300 Rack Front2
PPU 300 Rack Side
PPU 300 Rack Side2
PPM 300 (Hybrid)
PPU 300 Rack Front
PPU 300 Rack Front2
PPU 300 Rack Side
PPU 300 Rack Side2

The PPU 300 Hybrid (battery) controller controls an inverter with a power source, and the inverter breaker.

Several Hybrid controllers can be interlinked in a power management system controlled by an external PLC or similar. In such a system, the PPU 300 Hybrid controllers handle functions such as Power Take In (PTI) and Power Take Off (PTO), running on battery power only if needed and available, asymmetric load sharing with configurable constant discharge, and genset start if required.

Each Hybrid controller can control up to three non-essential load groups.

Part of the versatile PPU 300 range

The PPU 300 Hybrid controller is part of the DEIF PPU 300 range of intelligent and versatile controllers with built-in load sharing and synchronisation features. It can be used for a wide range of marine and offshore applications with an extensive range of protection, supervision, and control functions, including market-leading fuel optimisation technology. The PPU 300 can be used in a power management solution where the power management logic is located elsewhere, and it handles busbar sections with ease. For general information about the PPU 300 range, see the PPU 300 main page.

Highly customisable architecture

All PPU 300 variants can be specified with 4 or 7 I/O module slots. The modules provide voltage and current measurement, I/O, engine control, governor and AVR functions, and communication. Three modules are mandatory, but you can use the remaining 1 or 4 slots to customise the controller by adding modules or leave them empty. In addition, you can add up to 9 expansion racks to a single PPU 300 to get up to 58 free module slots (up to 4 in the base rack and up to 6 in each expansion rack).

Unique ANSI 87G differential protection

With the optional ACM3.2 module, you can add ANSI 87G differential protection for generators. The module measures phase currents on the consumer and neutral sides of a generator in order to detect phase-to-phase faults or phase-to-earth faults in earthed generator systems. With this unique feature, you can design reliable and safe power systems without external differential protection devices.

For a full list of modules, see the Modules tab.

Recommended I/O modules

Slot 1

Slot 2

Slot 3

Slot 4

Slot 5

Slot 6

Slot 7



Blind module

Blind module

Blind module

Blind module


The table shows a 7-slot rack, but the controller is also available with a 4-slot rack. Modules PSM3.1, ACM3.1, and PCM3.1 are mandatory. If you add expansion module racks, each expansion rack must contain a PSM3.2 power supply module but does not need to contain other modules.

Other PPU 300 variants

Standard controller

Standard controller with CODESYS

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Product videos


Introduction to the display unit (DU 300)

Unboxing the display unit (DU 300)

Installing the display unit (DU 300)


Installing the Multi-line 300 controller rack