Product Description

PowerGuard PDU-R2D4 is a high-reliability military-grade power distribution unit specifically developed for the defense industry and harsh field conditions. With its 2U rack-mounted design, it can be easily integrated into tactical vehicles, mobile systems, and fixed infrastructure.

The device supports both grid and UPS power inputs, ensuring uninterrupted power management. It can simultaneously supply power to multiple devices through its 8 AC and 2 DC outputs, while all outputs can be individually or group-controlled via remote management software.

The system incorporates overcurrent, overvoltage, undervoltage, short circuit, and thermal protection mechanisms to ensure complete operational safety. Emergency stop and bypass switches located on the front panel allow quick user intervention when needed.

Compliant with military and industrial standards such as MIL-STD-810G, ISO 9001, and IPC-A-610 Class 3, the PowerGuard PDU-R2D4 is equipped with advanced features including Ethernet and RS-422 communication interfaces, a Windows 10-compatible control panel, surge protection, and temperature and humidity sensors.

Purpose

The PowerGuard PDU-R2D4 Power Distribution Unit has been developed to provide uninterrupted, safe, and controllable power to systems operating in military and industrial platforms. By delivering stable AC and DC outputs to critical field equipment such as radar systems, communication infrastructure, command and control units, computer systems, and sensors, it ensures the continuity of all operational units.

Thanks to its ability to simultaneously support both grid and UPS power sources, along with its advanced protection systems against overloads and voltage fluctuations, the device ensures power continuity in mission-critical operations. With its remote management capability, operators can monitor outputs, perform switching operations, and assess the overall system status in real-time.

Where Is It Used?

The PowerGuard PDU-R2D4 Power Distribution Unit is designed to provide safe and stable energy distribution across a wide range of platforms operating in harsh environmental conditions. The product is widely preferred in the following application areas:

🛡️ Defense Industry Applications

• Armored and Tactical Wheeled Vehicles: Energy backbone for command and control systems, radar, and communication modules
• Mobile Command Centers and Headquarters: UPS-supported power management
• Radar and Missile Systems: Secure systems requiring stable AC/DC output
• Unmanned Ground and Aerial Vehicles (UGV/UAV): Power supply for auxiliary systems

🏭 Industrial and Critical Infrastructure

• Test and calibration laboratories
• Automation and control systems
• Production lines and electronic assembly zones

⚠️ Emergency and Disaster Response Systems

• AFAD, UMKE, and field hospitals
• Mobile energy centers and temporary crisis management units

🛰️ Data and Communication Systems

• Field servers and communication infrastructure
• Satellite communication terminals, RF systems, and tactical network components

Thanks to its compact structure, military-grade connector support, remote management capability, and robust design, PowerGuard PDU-R2D4 is suitable for deployment both in field operations and fixed installations.

What Are the Available Versions?

The PowerGuard Power Distribution Unit is available in a modular product family tailored to suit different mission scenarios and platform requirements. While maintaining the core architecture, various versions are offered with differences in output count, communication protocols, mechanical structure, and protection class.

🔹 Standard Type – PDU-R2D4

• 8 AC outputs + 2 DC outputs
• 2U rack-mountable design
• Ethernet and RS-422 communication support
• Remote control capability
• Compatible with grid and UPS power inputs

🔸 Mobile Type – PDU-M1D4

• Portable field-type version
• Optimized for external UPS integration
• Waterproof and impact-resistant ruggedized enclosure
• Lightweight structure with fast mounting capability

⚙️ Extended AC Type – PDU-R3A12

• 12 AC outputs
• Enhanced load capacity
• High current tolerance and improved thermal management
• Suitable for tactical command posts and radar systems

🔧 Customizable Versions

• Output types and quantity configurable per project (AC/DC)
• Optional communication protocols: CAN-Bus, RS-485, Modbus
• Connector options: MIL-DTL-38999 series
• Full end-to-end software and hardware customization

The PowerGuard series offers maximum flexibility in land, air, and fixed infrastructure applications with its configurable architecture designed for mission-specific power distribution needs.

Key Features

PowerGuard PDU-R2D4 is an advanced power distribution unit that provides stable, secure, and manageable energy to devices operating on modern military platforms. It is equipped with the following technical and operational features:

🔌 Electrical Features

• 180–240 VAC, 50 Hz single-phase input support
• 8 AC outputs and 2 DC outputs
• Simultaneous use of grid and UPS inputs
• Project-specific configurable output voltage and current values
• Flexible output design via AC/DC converter modules
• High efficiency: ≥ 85%

🔐 Protection and Safety Features

• Protection against overcurrent, overvoltage, undervoltage, short circuit, and overheating
• Phase sequence protection (for reverse connection)
• Surge protector with LED status indicator
• Manual bypass switch and emergency stop button on the front panel

🧠 Control and Monitoring Capabilities

• Windows 10 compatible graphical user interface software
• Individual, grouped, or sequential output control
• Real-time monitoring of voltage, current, temperature, and humidity
• Ethernet (100 Mbps) and RS-422 communication interfaces
• Ping support and system health monitoring

🧱 Mechanical and Environmental Features

• 2U height, 19” rack-type aluminum chassis
• EMI/EMC shielded design
• Operating temperature range: -30°C to +50°C
• Humidity range: 5% – 95% RH (non-condensing)
• Weight: ≤ 8 kg
• Supplied with a military-grade transport case for safe field deployment

The PowerGuard series is engineered to operate reliably under field conditions and offers a professional-level solution for meeting the power needs of systems ranging from communications to testing infrastructures.

How It Works

PowerGuard PDU-R2D4 is designed to deliver secure, uninterrupted, and controllable power to field-deployed equipment. The unit receives energy from grid and/or UPS sources, stabilizes it through advanced protection circuits, and distributes it across AC and DC output lines. This entire process is supported by both hardware-level safety mechanisms and software-based control layers.

⚙️ Operating Steps:

1. Input Stage
   • The unit is powered by a grid or UPS source in the range of 180–240 VAC / 50 Hz.
   • Dual power inputs operate independently, offering redundant source support.
2. Filtering and Protection
   • The input energy is stabilized using EMI/EMC filters, surge protection, voltage regulation, and overcurrent protection circuits.
3. Power Distribution
   • The regulated energy is routed to AC and DC output channels.
   • At least two isolated AC/DC converters are used to provide DC output.
4. Monitoring and Control
   • All outputs can be controlled via front panel buttons or Windows 10-compatible software interface.
   • The software monitors real-time status of each output, system temperature, input voltage, and humidity levels.
5. Emergency Response
   • In the event of over-temperature, short circuit, or voltage fluctuation, outputs shut down automatically.
   • The operator can intervene manually using the emergency stop button or bypass switch.

🛠️ Typical System Integration:

• Regulates fluctuating inputs during engine start-up in tactical vehicles
• Centralizes energy management in command and control systems
• Provides stable power to radar, communication, and server systems

Main Components

PowerGuard PDU-R2D4 is built with a modular and robust architecture, ensuring high reliability in field operations. It consists of the following primary hardware and support components:

🔌 1. Power Input Module

• 1 grid input
• 1 UPS input
• Each input has its own connector and protection path
• Includes EMI/EMC filters, surge protector, and phase monitoring

🔋 2. AC and DC Power Distribution Circuits

• 8 independent AC output lines
• 2 DC output lines (via integrated AC/DC converters)
• Each output has its own fuse/breaker and control line
• All converters operate in isolated mode within the system

🧠 3. Control and Management Board

• Microcontroller-based board with RS-422 and Ethernet support
• All outputs are controlled through software
• Fully compatible with Windows 10 graphical user interface

🧪 4. Protection and Monitoring Systems

• Protection against overvoltage, overcurrent, thermal overload, reverse phase, and undervoltage
• Integrated temperature and humidity sensors within the chassis
• Input-side LED surge indicator

🎛️ 5. Front Panel Interface

• LED status indicators for each output
• Illuminated ON/OFF buttons
• Emergency stop (E-STOP) and manual bypass switch
• Fast and intuitive operation for the user

🧱 6. Enclosure and Connector Structure

• 2U-height, 19” rack-mount electrostatically coated aluminum enclosure
• MIL-DTL-5015 / D38999 series military connectors
• Includes backshells and sealing boots
• EMI/EMC-compliant sealing and filtering systems are integrated

Compliance and Test Standards

The PowerGuard PDU-R2D4 Power Distribution Unit is designed and tested to withstand harsh environmental conditions, electromagnetic interference, and long-term field deployment. It is fully compliant with both military standards and industrial quality systems.

The following standards and test procedures certify the product’s reliability and suitability for extended operational use:

🛡️ Military Standards (MIL-STD)

• MIL-STD-810G
  • High/low temperature testing
  • Humidity and temperature cycling
  • Vibration and mechanical shock tests
  • Drop and transport durability
• MIL-STD-461F / 461G (for optional versions)
  • EMI/EMC emission and immunity testing
  • Prepared for sub-tests such as CE102, RE102, CS114, and RS103

🧪 Industrial Manufacturing and Quality Standards

• ISO 9001 – Quality Management System compliance
• IPC-A-610 Class 3 – High-reliability PCB assembly standard
• J-STD-001B – Soldering process quality and control
• IPC/WHMA-A-620 – Wire harness and connector termination quality

🔧 Functional and Performance Testing

• Output accuracy tests (voltage, current, response time)
• Protection circuit simulations (overload, short circuit, thermal shutdown)
• Remote management software functionality tests
• Electrical continuity and insulation verification
• Fan and cooling system testing (for mobile variants)

What Does It Do?

The PowerGuard PDU-R2D4 is a power management unit designed to deliver safe, uninterrupted, and centralized energy to devices operating in military and industrial systems. While supplying multiple devices from a single point, it monitors, manages, and protects energy lines in real time.

This unit is particularly useful for radar, communication, command and control, computing, and sensor systems operating under harsh environmental conditions. Field operators can manage output lines remotely or via the control panel and continuously monitor the system’s health status.

🚀 Key Functions

• Powers devices with different voltage requirements simultaneously
• Filters fluctuations at the input for stable energy output
• Protects the system against overcurrent, short circuit, and thermal anomalies
• Ensures safe shutdown or bypass operation in emergencies
• Enables remote monitoring and management through central control software

💼 Use Case Scenarios

• Supplies mission computers and radios in military vehicles
• Provides clean energy in mobile radar systems
• Centralizes power management in command centers
• Maintains voltage-current balance in test laboratories