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DU-2/MKIII

Paralleling And Protection Unit

Product Information

Product Describe

Paralleling And Protection Unit 24VDC

sophisticated display and control unit

designed for power generation applications

industrial automation system

Technical specifications for DU-2/MKIII

  • Manufacturer:
    DEIF
  • Product Category:
    General Automation
  • Estimated shipping dimensions:
    25 x 18.9 x 16.8 cm
  • Weight:
    3.5 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
  • Product Type:
    Display unit
  • SUPPLY FOR EXT.DC/DC:
    24V DC
  • RELAY OUTPUTS:
    30 VDC/1A
  • Power Consumption:
    Maximum approx. 3W
  • Protection Rating:
    Front panel IP52 (IP65 with optional seals), rear panel IP20
  • Display type:
    4-bit data resolution
  • Operating Voltage:
    8 to 26 V DC
  • Stock:
    10
  • New and original with factory sealed packing

    Brand new and 100% original unit, supplied in factory-sealed packaging, ensuring untouched condition and full manufacturer integrity.
  • New in opened package

    These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged.
  • New surplus

    New surplus item in unused condition, originally manufactured for distribution but not deployed in service.
  • Refurbished

    This product has been repaired by an authorized service center, and worn or aged parts have been replaced with qualified genuine parts. Warranty terms are subject to refurbishment certification and service policies.

More Information

Overview Manuals Principle Application Areas

Features:

  • Paralleling And Protection Unit 24VDC
  • Sophisticated display and control unit
  • Designed for power generation applications
The DEIF DU-2/MKIII is a high-precision display control unit designed specifically for the Multi-line 2 series, primarily for Protection and Power Management (PPM) and Parallel and Protection Units (PPUs). As the primary human-machine interface (HMI) for generator sets, it allows operators to monitor electrical parameters such as voltage, current, frequency, and power factor in real time, and access advanced configuration settings.

In industrial and marine environments, the DU-2/MKIII serves as a centralized hub for managing complex power systems, supporting manual and automatic control modes for generator start/stop sequences and load distribution. Its rugged design includes a high-contrast graphic LCD display and marine-grade durability, and it is certified by major organizations such as DNV-GL and ABS, ensuring reliable operation in harsh environments such as seawater corrosion and extreme temperatures.

The DU-2/MKIII EMG Paralleling And Protection Unit may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
DEIF DU-2/MKIII Paralleling And Protection Unit datasheet(manual), Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The DU-2/MKIII can also be used as a remote display and input terminal, communicating with base station controllers (such as PPUs or PPM units) via a dedicated serial link. It receives processed data from the host measurement circuit (which uses true RMS sensing technology to monitor the three-phase AC power grid topology) and converts this information into visual indicators on a four-digit resolution screen. When the operator enters commands or modifies parameters, the device sends these signals back to the CPU of the base station controller. The CPU then performs logical operations to adjust generator performance or trigger protective relays, completing the operation in as little as 100 milliseconds after a fault is detected.
Marine & Offshore: Widely used for generator control on ships and offshore platforms. This product is made of marine-grade durable materials and is certified by authoritative organizations such as DNV-GL, ABS, and Lloyd's Register.

Power Generation: For parallel applications where multiple generators must operate synchronously to effectively share the load and prevent overload.
 
Industrial Backup Systems: Ideal emergency power control solutions for hospitals, remote communication stations, and industrial facilities requiring reliable backup power.
 
Critical Infrastructure: Suitable for hardware environments requiring rugged durability, dustproofing, moisture protection, and the ability to withstand extreme temperature fluctuations (-25°C to +70°C).
By purchasing this item, you agree to the Terms & Conditions
Moore Automated is NOT an authorized distributor of DEIF
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FAQ

  • What is the basic operating purpose of the DU-2/MKIII? How does it function in marine and power management systems?
    The DU-2/MKIII is a multi-functional monitoring and alarm unit designed specifically for marine and industrial power systems. It can monitor key parameters such as voltage, current, and frequency in real time, making the DU-2/MKIII a centralized diagnostic and protection interface in generator and switchboard environments.
  • How does the DU-2/MKIII achieve accurate measurement and monitoring of electrical parameters under dynamic operating conditions?
    The DU-2/MKIII employs high-precision measurement circuitry combined with digital signal processing technology to continuously evaluate electrical inputs. This allows the DU-2/MKIII to provide stable and accurate readings even under load fluctuations or transient disturbances.
  • Why is alarm configurability a key feature of the DU-2/MKIII? How does the DU-2/MKIII enhance system security?
    The DU-2/MKIII supports user-configurable alarm thresholds with multiple parameters, enabling customized protection strategies. When preset limits are exceeded, the DU-2/MKIII will immediately issue an alarm to help prevent equipment damage and ensure safe system operation.
  • How does the DU-2/MKIII integrate with a wider range of control and monitoring systems in industrial or marine environments?
    The DU-2/MKIII is designed to connect to control panels, PLCs, and monitoring systems via standardized signal outputs and communication interfaces. This integration allows the DU-2/MKIII to serve as a critical node in a distributed monitoring architecture.
  • In which application areas is the DU-2/MKIII most suitable?
    The DU-2/MKIII is widely used in marine generator systems, switchboards, and industrial energy management applications. Its powerful monitoring capabilities make the DU-2/MKIII ideal for ensuring the reliable operation of critical electrical infrastructure.
  • How does the DU-2/MKIII support real-time decision-making in critical power management scenarios?
    The DU-2/MKIII provides immediate visual and signal feedback on system status. This real-time information enables operators to make quick and informed decisions, ensuring that the DU-2/MKIII contributes to the stable and efficient operation of the power system.

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