PDU336 can ensure a balanced distribution of the forces on the vehicle and the different voltage supplied from outside the vehicle.  Generator, External Power Supply, PTO Alternator, System
Batteries, Vehicle Batteries, and The power transmitted from the DC Power Supply is transmitted over the fuses and deployed on the vehicle.

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Product Description & Technical Document

DS-290922145342786-56 EN TECHNICAL DOCUMENT


MILITARY POWER DISTRIBUTION UNIT (PDU) units are power distribution systems designed to meet the electrical needs of military units. These units receive AC or DC power from primary power sources and direct it to suitable outputs for various electronic devices with different voltage, current, and frequency requirements.

PDUs are used during military operations such as in military vehicles and camps. These units can power various electronic devices such as computers, communication equipment, lighting systems, heating, and cooling systems. Additionally, some PDU models are specially designed to protect against overload or fluctuations.

PDUs are critical to the success of military operations because reliable and continuous power is essential for soldiers to communicate, coordinate tactical plans, and carry out their missions. By meeting these requirements, PDUs help make military operations more efficient and safer

Where to use

Military Power Distribution Units (PDUs) are used in various military environments such as military facilities, ships, and vehicles. These units are designed specifically for military applications that require security, durability, and independence. Military PDUs are built to withstand heavy-duty conditions and are designed to withstand environmental factors such as land, sea, or air. Additionally, military PDUs are usually protected against electromagnetic interference and produce low heat. With these features, military PDUs can be used for powering ammunition depots, radar systems, communication equipment, and other military devices.


A Military Power Distribution Unit (PDU) takes AC or DC power from primary power sources and directs it to appropriate outputs for various electronic devices with different voltage, current, and frequency requirements. Military PDUs can be designed in different types according to different application areas. Here are some types of military PDUs:

  1. Rackmount PDU: Rackmount PDUs used in data centers, military vehicles, and other applications are designed to meet the power needs of electronic equipment inside the cabinet. Rackmount PDUs are placed inside a closed enclosure to protect them from external factors such as sunlight, dust, and water.

  2. Portable PDU: Portable military PDUs are lightweight and durable units that can be used in field conditions. These types of PDUs can be used in moving military units, forward bases, mobile operations, temporary camps, and other field applications.

  3. Wall Mount PDU: Wall-mounted military PDUs can be used in office buildings, medical facilities, military vehicles, and other applications. These types of PDUs are mounted on walls to save space.

  4. Modular PDU: Modular military PDUs have a modular structure to meet different voltage, current, and frequency requirements. These types of PDUs are divided into suitable sections to adapt to a wider range of applications.

  5. Heavy-Duty PDU: Heavy-duty military PDUs are durable units used in harsh environmental conditions. These types of PDUs are used in ships, submarines, airplanes, all-terrain vehicles, or special security facilities.

  6. Intelligent PDU: Intelligent military PDUs are units that can automatically manage the power needs of electronic devices. These types of PDUs can increase energy efficiency and facilitate equipment management with remote monitoring and control features.

These are some typical examples of military PDUs. However, different application areas may require different types of PDUs according to their specific needs.


What to look for in a military PDU

  • Protects downstream equipment from noisy facility power using EMI filters, surge suppressors, and other techniques.
  • Saves space by integrating conditioning and conversion needs instead of housing them as external boxes.
  • Improves integration by providing the exact connectivity and controls needed for site-specific equipment.
  • Complies with general and military-specific standards for electrical power handling equipment.
  • Meets harsh environmental needs.

Programs, Platforms, and Applications

  • Aircraft, naval surface vessels, submarines, UAV, ground vehicles, and others.
  • Development test roles, simulation, support facilities, and forward operating bases powering mobile data processing to multi-rack test and service bays.
  • CSRR, AMDR, VPM, BACN, WIN-T, and other programs.
  • Supporting communications, weapons, intelligence, and research systems.


Military Power Distribution Unit (PDU) uses SAE J-1939 standart CAN protocol in order to communicate with the electrical control unit (ECU). 250kbit/s bit rate is chosen in order to provide reliable operation.

The cyclic status messages are transmitted by the Military Power Distribution Unit (PDU) in every 100 ms and the cyclic command message is expected from the ECU in every 100 ms. If the command message is not received by the Military Power Distribution Unit (PDU) for 400 ms, the emergency output is asserted (logic high) in order to indicate fault but the operational state of the Military Power Distribution Unit (PDU) stays the same in order to give the ECU to control the whole system. For the sake of the operation, the Military Power Distribution Unit (PDU) should be taken into low power mode as soon as possible. The details of the CAN messages can be found in log file.


Military Power Distribution Unit (PDU) uses RS422 communication in order to send status messages to the diagnostic/ record device in the system. The Military Power Distribution Unit (PDU) does not receive any message through RS422, hence no operational change can be performed. By using RS422 communication, a secondary check to CAN communication can be provided.


– Active unit include traction voltage contactors and contactor controls with Voltage and current measurement units.
– Pre-charging circuit to balance voltage levels before and after contactors
– Service charging circuit with contactor switching
– High voltage circuit insulation resistance measurement & monitoring
– Fuse protection for high and low current component output
– Hazardous voltage interlock loop (HVIL)

Custom, COTS, COTS-Modified

  • NERO specializes in application-specific PDUs.
    • Rackmount chassis from 0U to 24U, to rack sized.
    • Custom enclosures for non-rack applications.
    • Ac, dc, 400 Hz — up to 600 volts, 400 amps.
  • We have nearly 300 standard basic and smart PDUs.
    • 1-phase, 3-phase, 15-, 20-, and 30-amp models.
    • 1U, 2U, 3U, and vertical 0U configurations.

Conversion, Conditioning, and Control

  • Meet EMI standards using filters and shielded enclosures.
  • Mitigate voltage spikes/transients using surge suppression.
  • Integration of ac and dc sources.
  • Conversions for ac-ac, ac-dc, dc-dc, and dc-ac.
  • Local and remote power monitoring and switching.
  • Individually breakered branches.
  • EPO and interlock integration and remote panels.

Networked and Non-networked

  • Non-networked PDUs still offer some remote switching through discrete signals from remote panels.
  • Networked PDUs offer remote control and monitoring over Ethernet using HTTP/S, SSH, Telnet, and SNMP.
  • Remote switching of outlets.
  • Remote monitoring of inlet current, voltage, and power.
  • Event alerts for startup, user login, outlet state change, EPO, current and voltage setpoint excursion, and configuration changes (via SNMP, email, SMS).
  • Scripted automation through Telnet, SSH, SNMP, or RESTful API over HTTP/S.

This PDU Features

  • Panel Test Button
  • Emergency Stop Button
  • Power Supply Selection Switch
  • Battery Select Switch
  • Battery Charge Status LED Indicator
  • GDU On / Off Switch
  • Working Hours
  • AC Volt Panel Meter
  • AC Ampere Panel Meter
  • Phase Select Switch
  • Frequency Panel Meter
  • DC Volt Panel Meter
  • Bi-directional DC Ampere Panel Meter
  • CIT Status Query Button
  • AC/DC Measuring Born Jack
  • (Red / Green) CIT LED Indicator

Test Standarts

A Military Power Distribution Unit (PDU) is a critical component used to manage the power needs of various electronic devices in military platforms. Since military PDUs must provide reliable and continuous performance in harsh environments, it is important to create them according to appropriate test standards. Here are some military PDU test standards:

  1. MIL-STD-1399: This standard determines the electromagnetic compatibility of switchgear. Military PDUs must meet the requirements of this standard and take filtering and protection measures to minimize electromagnetic interference.

  2. MIL-STD-704: This standard is a standard for aircraft power systems and defines the requirements for the aircraft’s main power system. Military PDUs must have appropriate voltage, frequency, current, and fluctuation tolerances and be able to operate reliably under abnormal conditions.

  3. MIL-STD-1275: This standard is a standard for vehicle power systems and describes the DC power collected from vehicle power sources in terms of electromagnetic compatibility, fluctuations, etc. Military PDUs must meet the requirements of this standard for vehicle power systems and be able to operate reliably even while the vehicle is moving.

  4. MIL-STD-810: This standard determines the usability of military equipment in various environmental conditions. Military PDUs must be resistant to the manufacturer’s specified temperature, humidity, vibration, impact, etc. conditions.

  5. MIL-STD-461: This standard determines electromagnetic compatibility tests. Military PDUs must be properly tested with electromagnetic compatibility tests and be able to be rendered ineffective even when exposed to high levels of electromagnetic interference.

  6. MIL-STD-901: This standard sets shock testing requirements for shipboard machinery, equipment, and systems. Military PDUs used in naval applications must meet the shock testing requirements of this standard.

These are some typical examples of military PDU test standards that require the creation of military PDUs according to appropriate test standards. However, different application areas may apply different standards according to their specific testing needs.

Compliance and Standards

  • Certified AS9100 with ISO 9001.
  • TAA, ITAR, and NIST compliant.
  • General MIL-STDs 461, 810, 901, 167, and others.
  • Platform-specific MIL-STDs 1399, 704, and 1275.
  • Environment and reliability testing/certification when required.
  • UL and CE certification (others when required).

What does it do

A Military Power Distribution Unit (PDU) is a system used to manage the power needs of various electronic devices in military platforms. Military PDUs provide appropriate outputs for electronic devices with different voltage, current, and frequency requirements, ensuring their reliable and continuous operation.

Military PDUs can also reduce or increase the AC or DC power from primary power sources to different voltage levels, making it possible for different devices to use AC or DC power.

Military PDUs are designed for use in harsh environments and are typically tested according to electromagnetic compatibility and other test standards. Additionally, PDUs are usually compact and made of durable materials capable of withstanding tough conditions.

The usage areas of military PDUs include aircraft, ships, tanks, mobile headquarters, forward bases, temporary camps, and similar locations. These platforms host numerous devices with different power needs, so the efficient and reliable performance of military PDUs is critical.

In conclusion, military PDUs are designed to manage the power needs of various electronic devices, provide reliable and continuous performance, and withstand harsh environments.

Military PDUs often differ from commercial PDUs in some obvious and not so obvious ways. Obvious, is that certain battlefield applications do indeed require extraordinary tolerance of shock, vibration, and weather extremes. Not so obvious, is the need to condition incoming raw power to deliver clean, stable power to mission critical electronics. There are a lot of unique control and connectivity needs in military applications as well. NERO has been meeting the needs for military PDUs in ships, submarines, planes, forward command bases, hardware service bays, and even as support for research and product development for over 30 years.
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Technical Data Table
Connection Type

RS422, RS485, CANBus

System Weight

5 KG

Operating Temperature

-32 – +55 °C

Storage Temperature

-40°C – +60°C


430x117x260 mm