iE 250 Marine
Versatile and cybersecure intelligent energy controller for maritime applications




The DEIF iE 250 Marine is a powerful, versatile, and modular controller that you can tailor to a wide range of control solutions on coastal and commercial vessels. It offers advanced cybersecurity features, and the device is incredibly easy to use for designers, installers, and crews.
IACS UR E27 certified cyber resilience
Reduce the risk of cyberthreats to crews, cargoes, and ships, and avoid disruptions, delays, and costly ransom demands: The iE 250 Marine is IACS UR E27 certified, and thus helps you comply with the revised E26 unified requirement from the IACS which applies to a wide range of newbuilt vessels from 1 July 2024.
The flexibility to match any need
The iE 250 Marine is built for flexibility and gives you a world of options with base or front mounting, remote displays, bidirectional I/Os, and external I/O units or extension racks with additional modules. Customise the touch screen to show application-specific control features and configure the soft buttons to launch any command.
Need a cost-effective and flexible controller
Check out the iE 150 Marine!
Need a controller for even more advanced applications?
Check out the iE 350 Marine!
Highly customisable architecture
The modular architecture of the iE 250 Marine means you can easily customise it to your exact requirements. Simply select the modules you need for measurement, I/O, control, and other functions. You can add expansion racks with more modules, you can replace modules in the field if your requirements change, and you can customise the user interface to show exactly what crews need.
New standards in user friendliness
The intuitive user interface sets new standards in easy control. Crews get a quick overview from the configurable dashboards on the 7” colour touch display, and from a distance via the multi-colour indicator LED. You can operate the iE 250 Marine using physical buttons, touch screen, navigation keys, and soft buttons – or all of them combined.
Power to design future-proof solutions
With the iE 250 Marine, you get the horsepower to design and operate any control application. Its powerful processor easily handles complex control applications, and you can customise the iE 250 Marine to adapt your own applications with CustomLogic™ and a CODESYS add-on.
The iE 250 Marine gives you the security, flexibility, and power to design user-friendly maritime energy control solutions where the only limit is your imagination.
Read our guide for commercial vessels
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Contact us to discuss your options
- 90 years of energy pioneering
- Manufactured at the highest standards
- Superior quality
- Unmatched service and support
- Made in Denmark
Product videos
Products
iE 250
iE 250 - Hardware and installation
iE 250 - Get started with PICUS
iE 250 - How to use the display
DEIF iE Marine Series - Intelligent marine energy controllers
iE 250 – How to add or remove Add-on modules
iE 250 – How to add or remove Plug-in modules
iE Role and User management
iE Alarm handling
iE Display dashboards

Flexible display indicator for navigation applications XDi-N (navigation)
- TFT graphical LED 3.5, 5 or 7" display
- Two CAN ports with CANopen and XDi-net
- Redundant power inputs
- XDi-Net – add multiple XDi indicators
- Up to six NMEA inputs & up to four outputs
- NMEA data offset and averaging functions
- Dimmer controllable using front/external pushbuttons, analogue, NMEA or CAN/XDi-net.
- 3 level priority data fall-back function
- True wind data calculation
- Calculate magnetic or true heading
- XDi-net group dimmer and day/night colour shift
- Toggle between up to four predefined indicator screens using the mode function
- Quick-switch between measuring units either locally or for the entire system
- Customised indicator designs available on request
- Standard day and night designs, dusk on request
- Optional analogue or digital inputs
- Optional warning and alarms/relay output
- MED and other relevant class approvals

Flexible display indicator for wind and weather applications XDi-N (wind)
- TFT graphical LED 3.5, 5 or 7" display
- 96, 144 or 192 DIN cutouts
- Two CAN ports for easy interfacing
- XDi-Net – add multiple XDi indicators
- Redundant power inputs
- Compatible with wind sensors providing NMEA data (such as DEIF’s ultrasonic wind sensors)
- Up to six NMEA compatible inputs
- Up to four NMEA outputs
- Relative, true & geographic wind indication
- Toggle between up to four predefined indicator screens
- Quick-switch between wind speed measuring units (knots, m/s or m/h, km/h, beaufort)
- Dimmer controllable using front/external push-buttons, analogue, NMEA or CAN/XDi-net
- Standard day and night designs
- Customised indicator designs available on request
- Optional analogue or digital input
- Optional wind warning and alarms/relay output
- Optional IP66 protection

Revolution Counter XDi-D (Revolution Counter)
- Calculate absolute RPM and % RPM in single or bi-directional systems.
- Direct connection to an inductive pickup or similar pickup providing a digital on/off or open/closed signal.
- Quick setup and configuration via XDi menu
- Add multiple Revolution Counter repeaters via XDi-Net
- Revolution counter start value adjustable in case of retrofit installation
- TFT graphical LED 3.5, 5 or 7" display
- 96, 144 or 192 DIN cutouts
- Two CAN ports for easy interfacing
- Redundant power inputs
- Dimmer controllable using front/external push-buttons, analogue, NMEA or CAN/XDi-net
- Customized indicator designs available on request
- Optional IP66 protection
- Accumulates revolutions over time (up to 99 999 999 rev. after that is starts from 0 again)